8. Relax and do well.

Size: px
Start display at page:

Download "8. Relax and do well."

Transcription

1 CHEM 1225 Exam III John III. Gelder April 8, 1999 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 7 different pages. The last two pages includes a periodic table and a solubility table. All work should be done in this booklet. 2. PRINT your name, TA's name and your lab section number now in the space at the top of this sheet. DO NOT SEPARATE THESE PAGES. 3. Answer all questions that you can and whenever called for show your work clearly. Your method of solving problems should pattern the approach used in lecture. You do not have to show your work for the multiple choice (if any) or short answer questions. 4. No credit will be awarded if your work is not shown in problems 3 5, 7, 8, 10 and Point values are shown next to the problem number. 6. Budget your time for each of the questions. Some problems may have a low point value yet be very challenging. If you do not recognize the solution to a question quickly, skip it, and return to the question after completing the easier problems. 7. Look through the exam before beginning; plan your work; then begin. 8. Relax and do well. Page 2 Page 3 Page 4 Page 5 Page 6 TOTAL SCORES (20) (22) (22) (18) (18) (100)

2 CHEM 1225 EXAM II PAGE 2 (12) 1. Write the chemical formula(s) of the product(s) and balance the following reactions. Identify all products phases as either (g)as, (l)iquid, (s)olid or (aq)ueous. a) K 2 CrO 4 (aq) Pb(NO 3 ) 2 (aq PbCrO 4 (s) 2KNO 3 (aq) b) H 2 SO 4 (aq) 2KOH(aq) K 2 SO 4 (aq) 2H 2 O(aq) c) NaOH(aq) HC 2 H 3 O 2 (aq) NaC 2 H 3 O 2 (aq) H 2 O(aq) d) CaCO 3 (s) HCl(aq) CaCl 2 (aq) CO 2 (aq) H 2 O(aq) (8) 2. Write the balanced ionic and balanced net ionic chemical equations for any two of the reactions in Problem 1. (Remember to include the correct charges on all ions and the phase of each species.) 1a, 1b, 1c or 1d) Ionic equation: 2K (aq) CrO 4 2 (aq) 2NO 3 (aq) Pb 2 (aq) PbCrO 4 (s) 2K (aq) 2NO 3 (aq) Net Ionic equation: 1a, 1b or 1c) Ionic equation: CrO 4 2 (aq) Pb 2 (aq) PbCrO 4 (s) 2H (aq) SO 4 2 (aq) 2OH (aq) K (aq) 2K (aq) SO 4 2 (aq) 2H 2 O(aq) Net Ionic equation: 1a, 1b or 1c) Ionic equation: H (aq) OH (aq) H 2 O(aq) H (aq) C 2 H 3 O 2 (aq) OH (aq) Na (aq) Na (aq) C 2 H 3 O 2 (aq) H 2 O(aq) Or more correct HC 2 H 3 O 2 (aq) OH (aq) Na (aq) Na (aq) C 2 H 3 O 2 (aq) H 2 O(aq) Net Ionic equation: Or more correct H (aq) OH (aq) H 2 O(aq) HC 2 H 3 O 2 (aq) OH (aq) C 2 H 3 O 2 (aq) H 2 O(aq)

3 CHEM 1225 EXAM II PAGE 3 (12) 3. Describe how you would prepare; a) mls of a 1.25 M Na 2 SO 4 solution L 1.25 mol 1 Liter = mol Na 2 SO mol 142 g 1 mol = 88.8 gm Na 2SO 4 Wearing your safety goggles, add the Na 2 SO 4 solid to approximately 300 ml of water and be sure the solid has completely dissolved. Then add enough water to obtain ml solution. (Note: we do not have to worry about how much water is added, only the final volume.) b) 1 liter of M KMnO 4 from a solution which is 1.39 M KMnO 4. M 1 V 1 = M 2 V 2 V 1 = M 2 V 2 M 1 = M 1 L 1.39 M = 527 mls Add enough water to 527 mls of 1.39 M KMnO 4 to get 1 L of M solution. (10) 4. Some sulfuric acid is spilled on a bench top in the laboratory. Sodium hydrogen carbonate is sprinkled on the spill. The balanced equation describing the reaction which takes place, 2NaHCO 3 (s) H 2 SO 4 (aq) Na 2 SO 4 (aq) CO 2 (g) 2H 2 O(l) Calculate the mass of sodium hydrogen carbonate that must be weighed out to react with 400. mls of 6.00 M H 2 SO 4 that was spilled. 1 L mls 1000 ml 6.00 mol H 2 SO 4 1 L = 2.40 mol H 2 SO mol H 2 SO 4 2 mol NaHCO 3 1 mol H 84 g NaHCO 3 2 SO 4 1 mol NaHCO 3 = 403 g NaHCO 3

4 CHEM 1225 EXAM II PAGE 4 (10) 5. Nitric acid reacts with barium hydroxide according to the equation; 2HNO 3 (aq) Ba(OH) 2 (aq) Ba(NO 3 ) 2 (aq) 2H 2 O(g) Calculate the volume of M nitric acid required to exactly neutralize 18.0 mls of M barium hydroxide mol Ba(OH) L 2 mol HNO 3 1 L 1 L 1 mol Ba(OH) mol HNO 3 = L HNO 3 (4) 6. Write the equilibrium expression for each of the following chemical equations; a) b) K = [NCl 3] 2 [N 2 ][Cl 2 ] 3 K = [CO 2] 8 [H 2 O] 18 [O 2 ] 17 (8) 7. The equation describing the industrial preparation of ammonia is; Suppose that a reaction mixture at a given temperature, at equilibrium, was analyzed and found to contain 3.45 x 10 4 M NH 3, 8.17 x 10 4 M N 2, and M H 2. Calculate the magnitude of the equilibrium constant for the reaction. K = [NH 3] 2 [N 2 ][H 2 ] 3 [3.45 x 10 4 ] 2 K = [ 8.17 x 10 4 ][ 0.580] 3 K = 7.47 x 10 4

5 CHEM 1225 EXAM II PAGE 5 (10) 8. When moles of NO, moles of Cl 2 and moles of NOCl are sealed in a 1.00 L flask at 220 C, the following equilibrium is established, After the mixture achieves equilibrium analysis shows the concentration of NOCl to be M. Calculate K for the reaction. Initial Change Equilibrium Since moles of NOCl are formed at equilibrium, moles of NOCl must have reacted. So moles is the change in NOCl. We now use stoichiometry to calculate the change of NO and Cl mol NOCl 2 mol NO 2 mol NOCl = mol NO 1 mol Cl mol NOCl 2 mol NOCl = mol Cl 2 Remember since NOCl reacted, NO and Cl 2 are formed. Now the ICE table looks like (8) 9. For the system Initial Change Equilibrium K = [NOCl]2 [Cl 2 ][NO] 2 [0.222] 2 K = [0.661][1.16] 2 K = How will the [NH 3 ] be effected (increase, decrease or no change) when the equilibrium is disturbed by; a) Removal of O 2 increase b) Addition of H 2 O increase c) Increase in temperature increase d) Decrease in the volume of the reaction container increase

6 CHEM 1225 EXAM II PAGE 6 (9) 10. Calculate the solubility of PbCO 3 in pure water. K sp = 1.0 x I C - x x x = solubility of PbCO 3 E - x x K sp = [Pb 2 ][CO 3 2 ] 1.0 x = (x)(x) 1.0 x = x x 10 7 M = x = solubility of PbCO 3 (9) 11. The concentration of Mg 2 in a saturated solution of Mg(OH) 2 is 1.16 x 10 4 M. Calculate the magnitude of the equilibrium constant, K sp, for Mg(OH) 2. I C x (1.16 x 10 4 ) E x x 10 4 K sp = [Mg 2 ][OH ] 2 K sp = [1.16 x 10 4 ][ 2.32 x 10 4 ] 2 K sp = 6.24 x 10 12

7 CHEM 1225 EXAM II PAGE IA 1 H Li IIA 4 Be Na Mg K Ca Rb Sr Cs Ba Fr (223) Ra IIIA IVA VA VIA VIIA B C N O F 9 10 Ne IIIB IVB VB VIB VIIB VIII IB IIB Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe (98) La Periodic Table of the Elements Hf Al Si P S Cl VIIIA 2 Ta W Re 75 Os Ir Pt Au Hg 80 Tl Pb Bi Po At Rn (209) (210) Ac Rf Db Sg Bh Hs Mt (261) (262) (263) (262) (265) (266) He Ar (222) Lanthanides Actinides Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu (145) Th Pa U Np Pu AmCm Bk Cf Es Fm Md No Lr (244) (243) (247) (247) (251) (252) (257) (258) (259) (260) Solubility Table Ion Solubility Exceptions NO 3 ClO 4 soluble soluble none none Cl soluble except Ag, Hg 2 2, *Pb 2 SO 4 2 CO 3 2 PO 4 3 CrO 4 2 soluble except Ca 2, Ba 2, Sr 2, Hg 2, Pb 2, Ag insoluble except Group IA and NH 4 insoluble except Group IA and NH 4 insoluble except Group IA, IIA and NH 4 - OH insoluble except Group IA, *Ca 2, Ba 2, Sr 2 S 2 insoluble except Group IA, IIA and NH 4 Na soluble none NH 4 soluble none K soluble none *slightly soluble

8 CHEM 1225 EXAM II PAGE 8

8. Relax and do well.

8. Relax and do well. CHEM 1215 Exam III John III. Gelder November 11, 1998 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 7 different pages. The last page includes a periodic table and

More information

7. Relax and do well.

7. Relax and do well. CHEM 1215 Exam II John II. Gelder October 7, 1998 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 5 different pages. The last page includes a periodic table and a solubility

More information

INSTRUCTIONS: Exam III. November 10, 1999 Lab Section

INSTRUCTIONS: Exam III. November 10, 1999 Lab Section CHEM 1215 Exam III John III. Gelder November 10, 1999 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 7 different pages. The last page includes a periodic table and

More information

7. Relax and do well.

7. Relax and do well. CHEM 1215 Exam II John II. Gelder October 13, 1999 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 5 different pages. The last page includes a periodic table and a solubility

More information

8. Relax and do well.

8. Relax and do well. CHEM 1515 Exam II John II. Gelder October 14, 1993 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 8 different pages. The last two pages include a periodic table, a

More information

7. Relax and do well.

7. Relax and do well. CHEM 1215 Exam II John II. Gelder October 7, 1998 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 5 different pages. The last page includes a periodic table and a solubility

More information

8. Relax and do well.

8. Relax and do well. CHEM 1225 Exam I John I. Gelder February 4, 1999 Name KEY TA's Name Lab Section Please sign your name below to give permission to post your course scores on homework, laboratories and exams. If you do

More information

8. Relax and do well.

8. Relax and do well. CHEM 1314 3;30 pm Theory Exam III John III. Gelder November 13, 2002 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 8 different pages. The last page include a periodic

More information

8. Relax and do well.

8. Relax and do well. CHEM 15 Exam II John II. Gelder March 4, 1999 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 7 different pages. The last two pages includes a periodic table, a solubility

More information

INSTRUCTIONS: CHEM Exam I. September 13, 1994 Lab Section

INSTRUCTIONS: CHEM Exam I. September 13, 1994 Lab Section CHEM 1314.05 Exam I John I. Gelder September 13, 1994 Name TA's Name Lab Section Please sign your name below to give permission to post, by the last 4 digits of your student I.D. number, your course scores

More information

8. Relax and do well.

8. Relax and do well. CHEM 1314.03 Exam I John I. Gelder September 25, 1997 Name TA's Name Lab Section Please sign your name below to give permission to post, by the last 4 digits of your student I.D. number, your course scores

More information

8. Relax and do well.

8. Relax and do well. CHEM 34.02 and 34.03 Name Exam III John III. Gelder TA's Name November 5, 2000 Lab Section INSTRUCTIONS:. This examination consists of a total of 9 different pages. The last three pages include a periodic

More information

7. Relax and do well.

7. Relax and do well. CHEM 1014 Exam III John III. Gelder November 18, 1999 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 7 different pages. The last page includes a periodic table and

More information

Solutions and Ions. Pure Substances

Solutions and Ions. Pure Substances Class #4 Solutions and Ions CHEM 107 L.S. Brown Texas A&M University Pure Substances Pure substance: described completely by a single chemical formula Fixed composition 1 Mixtures Combination of 2 or more

More information

(please print) (1) (18) H IIA IIIA IVA VA VIA VIIA He (2) (13) (14) (15) (16) (17)

(please print) (1) (18) H IIA IIIA IVA VA VIA VIIA He (2) (13) (14) (15) (16) (17) CHEM 10113, Quiz 3 September 28, 2011 Name (please print) All equations must be balanced and show phases for full credit. Significant figures count, show charges as appropriate, and please box your answers!

More information

8. Relax and do well.

8. Relax and do well. CHEM 1314.05 Exam II John II. Gelder October 18, 1994 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 9 different pages. The last three pages include a periodic table,

More information

8. Relax and do well.

8. Relax and do well. CHEM 1014 Exam I John I. Gelder September 16, 1999 Name TA's Name Lab Section Please sign your name below to give permission to post your course scores on homework, laboratories and exams. If you do not

More information

Fall 2011 CHEM Test 4, Form A

Fall 2011 CHEM Test 4, Form A Fall 2011 CHEM 1110.40413 Test 4, Form A Part I. Multiple Choice: Clearly circle the best answer. (60 pts) Name: 1. The common constituent in all acid solutions is A) H 2 SO 4 B) H 2 C) H + D) OH 2. Which

More information

Circle the letters only. NO ANSWERS in the Columns!

Circle the letters only. NO ANSWERS in the Columns! Chemistry 1304.001 Name (please print) Exam 5 (100 points) April 18, 2018 On my honor, I have neither given nor received unauthorized aid on this exam. Signed Date Circle the letters only. NO ANSWERS in

More information

8. Relax and do well.

8. Relax and do well. CHEM 1314.03 Exam II John II. Gelder October 23, 1997 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 9 different pages. The last four pages include a periodic table,

More information

8. Relax and do well.

8. Relax and do well. EM 1515.001-006 Exam II John II. Gelder March 5, 2002 Name TA's Name Section INSTRUTIONS: 1. This examination consists of a total of 8 different pages. The last three pages include a periodic table, a

More information

8. Relax and do well.

8. Relax and do well. CHEM 1515.001 Name Exam II John II. Gelder TA's Name March 8, 2001 Lab Section INSTRUCTIONS: 1. This examination consists of a total of 8 different pages. The last three pages include a periodic table,

More information

INSTRUCTIONS: 7. Relax and do well.

INSTRUCTIONS: 7. Relax and do well. EM 1314 Name Exam III TA Name John III. Gelder November 16, 1992 Lab Section INSTRUTIONS: 1. This examination consists of a total of 7 different pages. The last page includes a periodic table and some

More information

8. Relax and do well.

8. Relax and do well. CHEM 1314 Name Exam IV TA Name John IV. Gelder December 14, 1992 Lab Section INSTRUCTIONS: 1. This examination consists of a total of 9 different pages. The last three pages includes a periodic table and

More information

CHEM 10113, Quiz 5 October 26, 2011

CHEM 10113, Quiz 5 October 26, 2011 CHEM 10113, Quiz 5 October 26, 2011 Name (please print) All equations must be balanced and show phases for full credit. Significant figures count, show charges as appropriate, and please box your answers!

More information

CHEM 10123/10125, Exam 2

CHEM 10123/10125, Exam 2 CHEM 10123/10125, Exam 2 March 7, 2012 (50 minutes) Name (please print) Please box your answers, and remember that significant figures, phases (for chemical equations), and units do count! 1. (13 points)

More information

Circle the letters only. NO ANSWERS in the Columns! (3 points each)

Circle the letters only. NO ANSWERS in the Columns! (3 points each) Chemistry 1304.001 Name (please print) Exam 4 (100 points) April 12, 2017 On my honor, I have neither given nor received unauthorized aid on this exam. Signed Date Circle the letters only. NO ANSWERS in

More information

K. 27 Co. 28 Ni. 29 Cu Rb. 46 Pd. 45 Rh. 47 Ag Cs Ir. 78 Pt.

K. 27 Co. 28 Ni. 29 Cu Rb. 46 Pd. 45 Rh. 47 Ag Cs Ir. 78 Pt. 1 IA 1 ydrogen 1.01 Atomic number Element symbol Element name Atomic mass VIIIA 1 1.01 IIA IIIA IVA VA VIA VIIA 2 e 4.00 Metalloids 3 Li 6.94 4 Be 9.01 5 B 10.81 6 C 12.01 7 N 14.01 8 O 16.00 9 F 19.00

More information

HANDOUT SET GENERAL CHEMISTRY II

HANDOUT SET GENERAL CHEMISTRY II HANDOUT SET GENERAL CHEMISTRY II Periodic Table of the Elements 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 IA VIIIA 1 2 H He 1.00794 IIA IIIA IVA VA VIA VIIA 4.00262 3 Li 6.941 11 Na 22.9898

More information

8. Relax and do well.

8. Relax and do well. EM 1515.001-009 Exam II John II. Gelder March 5, 2003 Name TA's Name Section INSTRUTIONS: 1. This examination consists of a total of 9 different pages. The last four pages include a periodic table; useful

More information

HANDOUT SET GENERAL CHEMISTRY I

HANDOUT SET GENERAL CHEMISTRY I HANDOUT SET GENERAL CHEMISTRY I Periodic Table of the Elements 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 IA VIIIA 1 2 H He 1.00794 IIA IIIA IVA VA VIA VIIA 4.00262 3 Li 6.941 11 Na 22.9898

More information

K. 27 Co. 28 Ni. 29 Cu Rb. 46 Pd. 45 Rh. 47 Ag Cs Ir. 78 Pt.

K. 27 Co. 28 Ni. 29 Cu Rb. 46 Pd. 45 Rh. 47 Ag Cs Ir. 78 Pt. 1 IA 1 H Hydrogen 1.01 Atomic number Element symbol Element name Atomic mass VIIIA 1 H 1.01 IIA IIIA IVA VA VIA VIIA 2 He 4.00 Metalloids 3 Li 6.94 4 Be 9.01 5 B 10.81 6 C 12.01 7 N 14.01 8 O 16.00 9 F

More information

8. Relax and do well.

8. Relax and do well. CHEM 1314.03 Exam II KEY ohn II. Gelder October 23, 1997 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 9 different pages. The last four pages include a periodic table,

More information

The Periodic Table of the Elements

The Periodic Table of the Elements The Periodic Table of the Elements All matter is composed of elements. All of the elements are composed of atoms. An atom is the smallest part of an element which still retains the properties of that element.

More information

8. Relax and do well.

8. Relax and do well. EM 1515.001 Exam III John III. Gelder November 7, 2001 Name TA's Name Lab Section INSTRUTIONS: 1. This examination consists of a total of 9 different pages. The last three pages include a periodic table,

More information

Lab Day and Time: Instructions. 1. Do not open the exam until you are told to start.

Lab Day and Time: Instructions. 1. Do not open the exam until you are told to start. Name: Lab Day and Time: Instructions 1. Do not open the exam until you are told to start. 2. This exam is closed note and closed book. You are not allowed to use any outside material while taking this

More information

02/05/09 Last 4 Digits of USC ID: Dr. Jessica Parr

02/05/09 Last 4 Digits of USC ID: Dr. Jessica Parr Chemistry 05 B First Letter of PLEASE PRINT YOUR NAME IN BLOCK LETTERS Exam last Name Name: 02/05/09 Last 4 Digits of USC ID: Dr. Jessica Parr Lab TA s Name: Question Points Score Grader 2 2 9 3 9 4 2

More information

K. 27 Co. 28 Ni. 29 Cu Rb. 46 Pd. 45 Rh. 47 Ag Cs Ir. 78 Pt.

K. 27 Co. 28 Ni. 29 Cu Rb. 46 Pd. 45 Rh. 47 Ag Cs Ir. 78 Pt. 1 IA 1 ydrogen 1.01 Atomic number Element symbol Element name Atomic mass VIIIA 1 1.01 IIA IIIA IVA VA VIA VIIA 2 e 4.00 Metalloids 3 Li 6.94 4 Be 9.01 5 B 10.81 6 C 12.01 7 N 14.01 8 O 16.00 9 F 19.00

More information

8. Relax and do well.

8. Relax and do well. CHEM 1515 Name Exam III TA's Name John III. Gelder April 7, 1993 Lab Section INSTRUCTIONS: 1. This examination consists of a total of 8 different pages. The last 2 pages include important mathematical

More information

Last 4 Digits of USC ID:

Last 4 Digits of USC ID: Chemistry 05 B Practice Exam Dr. Jessica Parr First Letter of last Name PLEASE PRINT YOUR NAME IN BLOCK LETTERS Name: Last 4 Digits of USC ID: Lab TA s Name: Question Points Score Grader 8 2 4 3 9 4 0

More information

CHM 101 PRACTICE TEST 1 Page 1 of 4

CHM 101 PRACTICE TEST 1 Page 1 of 4 CHM 101 PRACTICE TEST 1 Page 1 of 4 Please show calculations (stuffed equations) on all mathematical problems!! On the actual test, "naked answers, with no work shown, will receive no credit even if correct.

More information

BROOKLYN COLLEGE Department of Chemistry. Chemistry 1 Second Lecture Exam Nov. 27, Name Page 1 of 5

BROOKLYN COLLEGE Department of Chemistry. Chemistry 1 Second Lecture Exam Nov. 27, Name Page 1 of 5 BROOKLYN COLLEGE Department of Chemistry Chemistry 1 Second Lecture Exam Nov. 27, 2002 Name Page 1 of 5 Circle the name of your lab instructor Kobrak, Zhou, Girotto, Hussey, Du Before you begin the exam,

More information

Lab Day and Time: Instructions. 1. Do not open the exam until you are told to start.

Lab Day and Time: Instructions. 1. Do not open the exam until you are told to start. Name: Lab Day and Time: Instructions 1. Do not open the exam until you are told to start. 2. This exam is closed note and closed book. You are not allowed to use any outside material while taking this

More information

CHEM 107 (Spring-2004) Exam 2 (100 pts)

CHEM 107 (Spring-2004) Exam 2 (100 pts) CHEM 107 (Spring-2004) Exam 2 (100 pts) Name: ------------------------------------------------------------------------, SSN -------------------------------- LAST NAME, First (Circle the alphabet segment

More information

CHEMICAL COMPOUNDS MOLECULAR COMPOUNDS

CHEMICAL COMPOUNDS MOLECULAR COMPOUNDS 48 CHEMICAL COMPOUNDS - Dalton's theory does not mention this, but there is more than one way for atoms to come together to make chemical compounds! - There are TWO common kinds of chemical compound, classified

More information

ORBITAL DIAGRAM - A graphical representation of the quantum number "map" of electrons around an atom.

ORBITAL DIAGRAM - A graphical representation of the quantum number map of electrons around an atom. 178 (MAGNETIC) SPIN QUANTUM NUMBER: "spin down" or "spin up" - An ORBITAL (region with fixed "n", "l" and "ml" values) can hold TWO electrons. ORBITAL DIAGRAM - A graphical representation of the quantum

More information

CMSC 313 Lecture 17 Postulates & Theorems of Boolean Algebra Semiconductors CMOS Logic Gates

CMSC 313 Lecture 17 Postulates & Theorems of Boolean Algebra Semiconductors CMOS Logic Gates CMSC 313 Lecture 17 Postulates & Theorems of Boolean Algebra Semiconductors CMOS Logic Gates UMBC, CMSC313, Richard Chang Last Time Overview of second half of this course Logic gates &

More information

Lab Day and Time: Instructions. 1. Do not open the exam until you are told to start. Page # Points possible Points awarded

Lab Day and Time: Instructions. 1. Do not open the exam until you are told to start. Page # Points possible Points awarded Name: Lab Day and Time: Instructions 1. Do not open the exam until you are told to start. 2. This exam is closed note and closed book. You are not allowed to use any outside material while taking this

More information

Lab Day and Time: Instructions. 1. Do not open the exam until you are told to start.

Lab Day and Time: Instructions. 1. Do not open the exam until you are told to start. Name: Lab Day and Time: Instructions 1. Do not open the exam until you are told to start. 2. This exam is closed note and closed book. You are not allowed to use any outside material while taking this

More information

Chemistry 2 Exam Roane State Academic Festival. Name (print neatly) School

Chemistry 2 Exam Roane State Academic Festival. Name (print neatly) School Name (print neatly) School There are fifteen question on this exam. Each question is weighted equally. n the answer sheet, write your name in the space provided and your answers in the blanks provided.

More information

CHEMICAL COMPOUNDS MOLECULAR COMPOUNDS

CHEMICAL COMPOUNDS MOLECULAR COMPOUNDS 48 CHEMICAL COMPOUNDS - Dalton's theory does not mention this, but there is more than one way for atoms to come together to make chemical compounds! - There are TWO common kinds of chemical compound, classified

More information

Chapter 12 The Atom & Periodic Table- part 2

Chapter 12 The Atom & Periodic Table- part 2 Chapter 12 The Atom & Periodic Table- part 2 Electrons found outside the nucleus; negatively charged Protons found in the nucleus; positive charge equal in magnitude to the electron s negative charge Neutrons

More information

The exam must be written in ink. No calculators of any sort allowed. You have 2 hours to complete the exam. Periodic table 7 0

The exam must be written in ink. No calculators of any sort allowed. You have 2 hours to complete the exam. Periodic table 7 0 Email: The exam must be written in ink. No calculators of any sort allowed. You have 2 hours to complete the exam. CEM 610B Exam 3 Spring 2002 Instructor: Dr. Brian Pagenkopf Page Points 2 6 3 7 4 9 5

More information

TRU Chemistry Contest Chemistry 12 May 21, 2003 Time: 90 minutes

TRU Chemistry Contest Chemistry 12 May 21, 2003 Time: 90 minutes TRU Chemistry Contest Chemistry 12 May 21, 2003 Time: 90 minutes Last Name First name School Teacher Please follow the instructions below. We will send your teacher a report on your performance. Top performers

More information

610B Final Exam Cover Page

610B Final Exam Cover Page 1 st Letter of Last Name NAME: 610B Final Exam Cover Page No notes or calculators of any sort allowed. You have 3 hours to complete the exam. CHEM 610B, 50995 Final Exam Fall 2003 Instructor: Dr. Brian

More information

If anything confuses you or is not clear, raise your hand and ask!

If anything confuses you or is not clear, raise your hand and ask! CHM 1045 Dr. Light s Section December 10, 2002 FINAL EXAM Name (please print) Recitation Section Meeting Time This exam consists of six pages. Make sure you have one of each. Print your name at the top

More information

Oregon State University, Summer 2009 Chemistry 121 Midterm Exam 2, July 3rd, 10 am

Oregon State University, Summer 2009 Chemistry 121 Midterm Exam 2, July 3rd, 10 am Oregon State University, Summer 2009 Chemistry 121 Midterm Exam 2, July 3rd, 10 am DO NOT OPEN THIS EXAM UNTIL INSTRUCTED. CALCULATORS ARE NOT TO BE SHARED. Instructions : You should have with you several

More information

Chemistry 1 First Lecture Exam Fall Abbasi Khajo Levine Mathias Mathias/Ortiz Metlitsky Rahi Sanchez-Delgado Vasserman

Chemistry 1 First Lecture Exam Fall Abbasi Khajo Levine Mathias Mathias/Ortiz Metlitsky Rahi Sanchez-Delgado Vasserman Chemistry 1 First Lecture Exam Fall 2011 Page 1 of 9 NAME Circle the name of your recitation/lab instructor(s) Abbasi Khajo Levine Mathias Mathias/Ortiz Metlitsky Rahi Sanchez-Delgado Vasserman Before

More information

(C) Pavel Sedach and Prep101 1

(C) Pavel Sedach and Prep101 1 (C) Pavel Sedach and Prep101 1 (C) Pavel Sedach and Prep101 1 (C) Pavel Sedach and Prep101 2 (C) Pavel Sedach and Prep101 2 (C) Pavel Sedach and Prep101 3 (C) Pavel Sedach and Prep101 3 (C) Pavel Sedach

More information

Chemistry 185 Exam #2 - A November 5, Lab Day and Time: Instructions. 1. Do not open the exam until you are told to start.

Chemistry 185 Exam #2 - A November 5, Lab Day and Time: Instructions. 1. Do not open the exam until you are told to start. Name: Lab Day and Time: Instructions 1. Do not open the exam until you are told to start. 2. This exam is closed note and closed book. You are not allowed to use any outside material while taking this

More information

Chapter 3: Stoichiometry

Chapter 3: Stoichiometry Chapter 3: Stoichiometry Chem 6A Michael J. Sailor, UC San Diego 1 Announcements: Thursday (Sep 29) quiz: Bring student ID or we cannot accept your quiz! No notes, no calculators Covers chapters 1 and

More information

Chemistry 1 Second Lecture Exam Fall Abbasi Khajo Kruft Levine Mathias Mathias/Ortiz Metlitsky Rahi Sanchez-Delgado Vasserman

Chemistry 1 Second Lecture Exam Fall Abbasi Khajo Kruft Levine Mathias Mathias/Ortiz Metlitsky Rahi Sanchez-Delgado Vasserman Page 1 of 9 Chemistry 1 Second Lecture Exam Fall 2011 Name Circle the name of your recitation/lab instructor(s) Abbasi Khajo Kruft Levine Mathias Mathias/Ortiz Metlitsky Rahi Sanchez-Delgado Vasserman

More information

CHEM Come to the PASS workshop with your mock exam complete. During the workshop you can work with other students to review your work.

CHEM Come to the PASS workshop with your mock exam complete. During the workshop you can work with other students to review your work. It is most beneficial to you to write this mock midterm UNDER EXAM CONDITIONS. This means: Complete the midterm in 1.5 hours. Work on your own. Keep your notes and textbook closed. Attempt every question.

More information

CHEM 108 (Spring-2008) Exam. 3 (105 pts)

CHEM 108 (Spring-2008) Exam. 3 (105 pts) CHEM 08 (Spring-008) Exam. (05 pts) Name: --------------------------------------------------------------------------, CLID # -------------------------------- LAST NAME, First (Circle the alphabet segment

More information

Faculty of Natural and Agricultural Sciences Chemistry Department. Semester Test 1. Analytical Chemistry CMY 283. Time: 120 min Marks: 100 Pages: 6

Faculty of Natural and Agricultural Sciences Chemistry Department. Semester Test 1. Analytical Chemistry CMY 283. Time: 120 min Marks: 100 Pages: 6 Faculty of Natural and Agricultural Sciences Chemistry Department Semester Test 1 Analytical Chemistry CMY 283 Date: 5 September 2016 Lecturers : Prof P Forbes, Dr Laurens, Mr SA Nsibande Time: 120 min

More information

The Periodic Table. Periodic Properties. Can you explain this graph? Valence Electrons. Valence Electrons. Paramagnetism

The Periodic Table. Periodic Properties. Can you explain this graph? Valence Electrons. Valence Electrons. Paramagnetism Periodic Properties Atomic & Ionic Radius Energy Electron Affinity We want to understand the variations in these properties in terms of electron configurations. The Periodic Table Elements in a column

More information

VIIIA H PREDICTING CHARGE

VIIIA H PREDICTING CHARGE 58 IA PREDICTING CHARGE VIIIA H IIA IIIA IVA VA VIA VIIA You can reliably determine the charge using our method for Groups IA, IIA, IIIB, Aluminum, and the Group VA, VIA, and VIIA NONMETALS Li Be B C N

More information

Instructions. 1. Do not open the exam until you are told to start.

Instructions. 1. Do not open the exam until you are told to start. Name: Lab Day and Time: Instructions 1. Do not open the exam until you are told to start. 2. This exam is closed note and closed book. You are not allowed to use any outside material while taking this

More information

CHEMICAL COMPOUNDS MOLECULAR COMPOUNDS

CHEMICAL COMPOUNDS MOLECULAR COMPOUNDS 48 CHEMICAL COMPOUNDS - Dalton's theory does not mention this, but there is more than one way for atoms to come together to make chemical compounds! - There are TWO common kinds of chemical compound, classified

More information

E5 Lewis Acids and Bases: lab 2. Session two lab Parts 2B, 3, and 4. Session one lab Parts 1and 2A. Aquo Complex Ions

E5 Lewis Acids and Bases: lab 2. Session two lab Parts 2B, 3, and 4. Session one lab Parts 1and 2A. Aquo Complex Ions E5 Lewis Acids and Bases: lab 2 Session one lab Parts 1and 2A Session two lab Parts 2B, 3, and 4 Part 2B. Complexation, Structure and Periodicity Compare the reactivity of aquo complex ions containing

More information

Chem Exam 1. September 26, Dr. Susan E. Bates. Name 9:00 OR 10:00

Chem Exam 1. September 26, Dr. Susan E. Bates. Name 9:00 OR 10:00 Chem 1711 Exam 1 September 26, 2013 Dr. Susan E. Bates Name 9:00 OR 10:00 N A = 6.022 x 10 23 mol 1 I A II A III B IV B V B VI B VII B VIII I B II B III A IV A V A VI A VII A inert gases 1 H 1.008 3 Li

More information

ORBITAL DIAGRAM - A graphical representation of the quantum number "map" of electrons around an atom.

ORBITAL DIAGRAM - A graphical representation of the quantum number map of electrons around an atom. 160 ORBITAL DIAGRAM - A graphical representation of the quantum number "map" of electrons around an atom. 4p 3d 4s 3p 3s 2p 2s 1s Each blank represents an ORBITAL, and can hold two electrons. The 4s subshell

More information

E5 Lewis Acids and Bases: lab 2. Session two lab Parts 2B, 3, and 4. Session one lab Parts 1and 2A. Aquo Complex Ions. Aquo Complex Ion Reactions

E5 Lewis Acids and Bases: lab 2. Session two lab Parts 2B, 3, and 4. Session one lab Parts 1and 2A. Aquo Complex Ions. Aquo Complex Ion Reactions E5 Lewis Acids and Bases: lab 2 Session one lab Parts 1and 2A Part 2B. Complexation, Structure and Periodicity Compare the reactivity of aquo complex ions containing pre-transition, transition, and post-transition

More information

Part 2. Multiple choice (use answer card). 90 pts. total. 3 pts. each.

Part 2. Multiple choice (use answer card). 90 pts. total. 3 pts. each. 1 Exam I CHEM 1303.001 Name (print legibly) Seat no. On my honor, I have neither given nor received unauthorized aid on this exam. Signed Date Part 1. Nomenclature. 10 pts. total. 2 pts. each. Fill in

More information

VIIIA H PREDICTING CHARGE

VIIIA H PREDICTING CHARGE 58 IA PREDICTING CHARGE VIIIA H IIA IIIA IVA VA VIA VIIA You can reliably determine the charge using our method for Groups IA, IIA, IIIB, Aluminum, and the Group VA, VIA, and VIIA NONMETALS Li Be B C N

More information

PERIODIC TABLE OF THE ELEMENTS

PERIODIC TABLE OF THE ELEMENTS Useful Constants and equations: K = o C + 273 Avogadro's number = 6.022 x 10 23 d = density = mass/volume R H = 2.178 x 10-18 J c = E = h = hc/ h = 6.626 x 10-34 J s c = 2.998 x 10 8 m/s E n = -R H Z 2

More information

CHEM 130 Exp. 8: Molecular Models

CHEM 130 Exp. 8: Molecular Models CHEM 130 Exp. 8: Molecular Models In this lab, we will learn and practice predicting molecular structures from molecular formulas. The Periodic Table of the Elements IA 1 H IIA IIIA IVA VA VIA VIIA 3 5

More information

CHEM 171 EXAMINATION 1. October 9, Dr. Kimberly M. Broekemeier. NAME: Key

CHEM 171 EXAMINATION 1. October 9, Dr. Kimberly M. Broekemeier. NAME: Key CHEM 171 EXAMINATION 1 October 9, 008 Dr. Kimberly M. Broekemeier NAME: Key I A II A III B IV B V B VI B VII B VIII I B II B III A IV A V A VI A VII A inert gase s 1 H 1.008 Li.941 11 Na.98 19 K 9.10 7

More information

CHEM 167 FINAL EXAM MONDAY, MAY 2 9:45 11:45 A.M GILMAN HALL

CHEM 167 FINAL EXAM MONDAY, MAY 2 9:45 11:45 A.M GILMAN HALL PROF. JOHN VERKADE SPRING 2005 THIS EXAM CONSISTS OF 12 QUESTIONS ON 9 PAGES CHEM 167 HOUR EXAM IV APRIL 20, 2005 SEAT NO. NAME RECIT. INSTR. RECIT. SECT. GRADING PAGE Page 2 Page 3 Page 4 Page 5 Page

More information

-"l" also contributes ENERGY. Higher values for "l" mean the electron has higher energy.

-l also contributes ENERGY. Higher values for l mean the electron has higher energy. 175 - Giving the four parameters will uniquely identify an electron around an atom. No two electrons in the same atom can share all four. These parameters are called QUANTUM NUMBERS. PRINCIPAL QUANTUM

More information

Example: If a simple ionic compound is made of these two ions, what is its formula? In the final formula, don't write the charges on the ions!

Example: If a simple ionic compound is made of these two ions, what is its formula? In the final formula, don't write the charges on the ions! 88 WRITING AN IONIC FORMULA - if you know the ions that make up a compound, all you need to do is find the smallest ratio of cation to anion the compound needs to have an overall charge of zero Example:

More information

Atomic weight: This is a decimal number, but for radioactive elements it is replaced with a number in parenthesis.

Atomic weight: This is a decimal number, but for radioactive elements it is replaced with a number in parenthesis. 47 Blocks on the periodic table 11 Sodium 22.99 Atomic number: This is always a whole number. The periodic table is arranged by atomic number! Element symbol: A one or two letter abbreviation for the name

More information

Grade 11 Science Practice Test

Grade 11 Science Practice Test Grade 11 Science Practice Test Nebraska Department of Education 2012 Directions: On the following pages of your test booklet are multiple-choice questions for Session 1 of the Grade 11 Nebraska State Accountability

More information

Instructions. 1. Do not open the exam until you are told to start.

Instructions. 1. Do not open the exam until you are told to start. Name: Lab Day and Time: Instructions 1. Do not open the exam until you are told to start. 2. This exam is closed note and closed book. You are not allowed to use any outside material while taking this

More information

EXAMPLES. He VIA VIIA Li Be B C N O F Ne

EXAMPLES. He VIA VIIA Li Be B C N O F Ne 59 IA EXAMPLES VIIIA H IIA IIIA IVA VA He VIA VIIA Li Be B C N O F Ne Na Mg IIIB IVB VB Al Si P VIB VIIB VIIIB IB IIB S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru

More information

8. Relax and do well.

8. Relax and do well. CHEM 1515.001-009 Exam III John III. Gelder April 2, 2003 Name TA's Name Section INSTRUCTIONS: 1. This examination consists of a total of 10 different pages. The last three pages include a periodic table;

More information

Chemistry 431 Practice Final Exam Fall Hours

Chemistry 431 Practice Final Exam Fall Hours Chemistry 431 Practice Final Exam Fall 2018 3 Hours R =8.3144 J mol 1 K 1 R=.0821 L atm mol 1 K 1 R=.08314 L bar mol 1 K 1 k=1.381 10 23 J molecule 1 K 1 h=6.626 10 34 Js N A = 6.022 10 23 molecules mol

More information

Atoms and the Periodic Table

Atoms and the Periodic Table Atoms and the Periodic Table Parts of the Atom Proton Found in the nucleus Number of protons defines the element Charge +1, mass 1 Parts of the Atom Neutron Found in the nucleus Stabilizes the nucleus

More information

CHEM 107 (Spring-2005) Exam 3 (100 pts)

CHEM 107 (Spring-2005) Exam 3 (100 pts) CHEM 107 (Spring-2005) Exam 3 (100 pts) Name: ------------------------------------------------------------------------, Clid # ------------------------------ LAST NAME, First (Circle the alphabet segment

More information

Lewis dot structures for molecules

Lewis dot structures for molecules 1 Lewis dot structures for molecules In the dot structure of a molecule, - SHARED valence electrons are shown with dashes - one per pair. - UNSHARED valence electrons ("lone pairs") are represented by

More information

The Periodic Table of Elements

The Periodic Table of Elements The Periodic Table of Elements 8 Uuo Uus Uuh (9) Uup (88) Uuq (89) Uut (8) Uub (8) Rg () 0 Ds (9) 09 Mt (8) 08 Hs (9) 0 h () 0 Sg () 0 Db () 0 Rf () 0 Lr () 88 Ra () 8 Fr () 8 Rn () 8 At (0) 8 Po (09)

More information

Halogens HALOGENS. Parts 2A and 2B. Chem : Feb. 19, 20 and March 3. Compare the properties and reactivity of the halogens and halides

Halogens HALOGENS. Parts 2A and 2B. Chem : Feb. 19, 20 and March 3. Compare the properties and reactivity of the halogens and halides Chem. 125-126: Feb. 19, 20 and March 3 Experiment 3 Session 2 (Three hour lab) Complete Experiment 3 Parts 2B and 3 Complete team report Complete discussion presentation Parts 2A and 2B Compare the properties

More information

Atomic weight: This is a decimal number, but for radioactive elements it is replaced with a number in parenthesis.

Atomic weight: This is a decimal number, but for radioactive elements it is replaced with a number in parenthesis. 47 Blocks on the periodic table 11 Sodium 22.99 Atomic number: This is always a whole number. The periodic table is arranged by atomic number! Element symbol: A one or two letter abbreviation for the name

More information

Faculty of Natural and Agricultural Sciences Chemistry Department. Semester Test 1 MEMO. Analytical Chemistry CMY 283

Faculty of Natural and Agricultural Sciences Chemistry Department. Semester Test 1 MEMO. Analytical Chemistry CMY 283 Faculty of Natural and Agricultural Sciences Chemistry Department Semester Test 1 MEMO Analytical Chemistry CMY 283 Date: 5 September 2016 Lecturers : Prof P Forbes, Dr Laurens, Mr SA Nsibande Time: 90

More information

WRITING AN IONIC FORMULA

WRITING AN IONIC FORMULA 55 WRITING AN IONIC FORMULA - if you know the ions that make up a compound, all you need to do is find the smallest ratio of cation to anion the compound needs to have an overall charge of zero Example:

More information

M10/4/CHEMI/SPM/ENG/TZ2/XX+ CHEMISTRY. Wednesday 12 May 2010 (afternoon) 45 minutes INSTRUCTIONS TO CANDIDATES

M10/4/CHEMI/SPM/ENG/TZ2/XX+ CHEMISTRY. Wednesday 12 May 2010 (afternoon) 45 minutes INSTRUCTIONS TO CANDIDATES M10/4/CHEMI/SPM/ENG/TZ/XX+ 106116 CHEMISTRY standard level Paper 1 Wednesday 1 May 010 (afternoon) 45 minutes INSTRUCTIONS TO CANDIDATES Do not open this examination paper until instructed to do so. Answer

More information

WRITING AN IONIC FORMULA

WRITING AN IONIC FORMULA WRITING AN IONIC FORMULA - if you know the ions that make up a compound, all you need to do is find the smallest ratio of cation to anion the compound needs to have an overall charge of zero Example: If

More information

Marks for each question are as indicated in [] brackets.

Marks for each question are as indicated in [] brackets. Name Student Number CHEMISTRY 140 FINAL EXAM December 10, 2002 Numerical answers must be given with appropriate units and significant figures. Please place all answers in the space provided for the question.

More information

8. Relax and do well.

8. Relax and do well. CHEM 1515.002 Name Exam I John I. Gelder TA's Name February 4, 1998 Lab Section INSTRUCTIONS: 1. This examination consists of a total of 9 different pages. The last three pages include a periodic table,

More information

WRITING AN IONIC FORMULA

WRITING AN IONIC FORMULA 55 WRITING AN IONIC FORMULA - if you know the ions that make up a compound, all you need to do is find the smallest ratio of cation to anion the compound needs to have an overall charge of zero Example:

More information