A-LEVEL TRANSITION COURSE SUMMER 2018 PART 2: USING CHEMICAL EQUATIONS
|
|
|
- Justin West
- 5 years ago
- Views:
Transcription
1 A-LEVEL TRANSITION COURSE SUMMER 2018 PART 2: USING CHEMICAL EQUATIONS MASS AQUEOUS VOLUME ` MOLAR MASS GASEOUS VOLUME MOLES CONCENTRATION
2 REVISION FROM LESSON 1 How many moles? 1) Jahin weighs a sample of CaCO3 and records a mass of 5.0 g. How many moles of calcium carbonate are present? 2) Fatima measures out 50 cm 3 of 0.1 moldm -3 hydrochloric acid. How many moles of hydrochloric acid are present? 3) Hussain collects 48 cm 3 of carbon dioxide in a gas syringe. How many moles of carbon dioxide are present?
3 4) Using Chemical Equations Chemical Equations show the ratio in which different species react in a chemical equation. This equation shows that 6 moles carbon dioxide of react with 6 mole of water to make 1 mole of glucose and 6 moles of oxygen. 6: 6: 1: 6 a) How many moles of water are needed to react with 0.03 moles of carbon dioxide? b) How many moles of glucose can you make from 0.03 moles of carbon dioxide? c) How many moles of oxygen can you make from 0.03 moles of carbon dioxide? Equation 1: Mg + 2 HCl MgCl 2 + H 2 a) How many moles of magnesium would be needed to react with 0.01 moles of hydrochloric acid? b) How many moles of hydrogen could be produced from 0.01 moles of hydrochloric acid? Equation 2: 2 H 2S + 3 O 2 2 SO H 2O a) How many moles of oxygen is needed to react with 0.5 moles of hydrogen sulphide? b) How many moles of sulphur dioxide can be made from 0.5 moles of hydrogen sulphide? Equation 3: 4 K + O 2 2 K 2O a) How many moles of oxygen are needed to react with 0.05 moles of potassium? b) How many moles of potassium oxide can be made from 0.05 moles of potassium?
4
5 Calculating Reacting Quantities from Chemical Equations You perform these calculations in three steps: - calculate the number of moles of one of the substances (you will either be given the mass, or the aqueous volume and the concentration, or the gaseous volume) - use the equation to work out the number of moles of the other substance - use one of the mole relationships to work out the quantity you need 1) What mass of hydrogen is produced when 192 g of magnesium is reacted with hydrochloric acid? Mg + 2 HCl MgCl 2 + H 2 (3) 2) What mass of oxygen is needed to react with 8.5 g of hydrogen sulphide (H 2S)? 2 H 2S + 3 O 2 2 SO H 2O (3) 3) What mass of potassium oxide is formed when 7.8 g of potassium is burned in oxygen? 4 K + O 2 2 K 2O (3) 4) What mass of oxygen is required to oxidise 10 g of ammonia to NO? 4 NH O 2 4 NO + 6 H 2O (3)
6 5) What mass of aluminium oxide is produced when 135 g of aluminium is burned in oxygen? 2 Al + 3 O 2 Al 2O 3 (3) 6) What mass of iodine is produced when 7.1 g of chlorine reacts with excess potassium iodide? Cl KI 2 KCl + I 2 (3) 7) What volume of hydrogen is needed to react with 32 g of copper oxide? CuO + H 2 Cu + H 2O (3) 8) What volume of oxygen is formed when 735 g of potassium chlorate decomposes? 2 KClO 3 2 KCl + 3 O 2 (3) 9) What volume of hydrogen is produced when 195 g of potassium is added to water? 2 K + 2 H 2O 2 KOH + H 2 (3)
7 10) What mass of calcium carbonate is required to produce 1.2 dm 3 of carbon dioxide? CaCO 3 CaO + CO 2 (3) 11) What mass of magnesium oxide is formed when magnesium reacts with 6 dm 3 of oxygen? 2 Mg + O 2 2 MgO (3) 12) What volume of carbon dioxide is produced when 5.6 g of butene (C 4H 8) is burnt? C 4H O 2 4 CO H 2O (3) 13) The pollutant sulphur dioxide can be removed from the air by reaction with calcium carbonate in the presence of oxygen. What mass of calcium carbonate is needed to remove 480 dm 3 of sulphur dioxide? 2 CaCO SO 2 + O 2 2 CaSO CO 2 (3) 14) 25 cm 3 of a solution of sodium hydroxide reacts with 15 cm 3 of 0.1 mol/dm 3 HCl. What is the molar concentration of the sodium hydroxide solution? HCl + NaOH NaCl + H 2O (3) END OF LESSON 2
Chemistry. Bridging the Gap Summer Homework. Name..
Chemistry Bridging the Gap Summer Homework Name.. Standard Form Number Number in standard form 0.008 8 x 10-3 0.07 7 x 10-2 0.55 5.5 x 10-1 0.000052 0.048 0.0086 0.00086 0.000086 0.0000000001 0.000455
2. Relative molecular mass, M r - The relative molecular mass of a molecule is the average mass of the one molecule when compared with
Chapter 3: Chemical Formulae and Equations 1. Relative atomic mass, A r - The relative atomic mass of an element is the average mass of one atom of an element when compared with mass of an atom of carbon-12
Name... Requirements for the task and Chemistry lessons
Name... HAUTLIEU SCHOOL CHEMISTRY Pre AS and IB Diploma Task Expectations All sections of the task will be attempted please check you have answered all questions (even those on the back page) Answers should
WELCOME TO AS CRAWSHAW! OCR Chemistry
WELCOME TO AS CHEMISTRY @ CRAWSHAW! This information aims to provide you with: Basic information about the course How you can prepare for a successful start to your AS Chemistry Other relevant information
NCERT Solutions for Atoms and Molecules
1 NCERT Solutions for Atoms and Molecules Question 1. In a reaction, 5.3 g of sodium carbonate reacted with 6 g of ethanoic acid. The products were 2.2 g of carbon dioxide, 0.9 g water and 8.2 g of sodium
CHEM111 UNIT 1 MOLES, FORMULAE AND EQUATIONS QUESTIONS
Lesson 1 1. (a) Deduce the number of protons, neutrons and electrons in the following species: (i) 37 Cl - (ii) 1 H + (iii) 45 Sc 3+ (b) Write symbols for the following species: (i) 8 protons, 8 neutrons,
CHAPTER 12: STOICHIOMETRY
Name: CHAPTER 12: STOICHIOMETRY Period: MOLE TO MOLE RATIO When nitrogen and hydrogen gas are heated under the correct conditions, ammonia gas (NH 3 ) is formed. a. RXN: 1N 2 + 3H 2 2NH 3 b. How many moles
Chemical Reactions Unit
Name: Hour: Teacher: ROZEMA / Chemistry Chemical Reactions Unit 1 P a g e 2 P a g e 3 P a g e 4 P a g e 5 P a g e 6 P a g e Chemistry Balancing Equations Balance the following equations by inserting the
C2.6 Quantitative Chemistry Foundation
C2.6 Quantitative Chemistry Foundation 1. Relative masses Use the periodic table to find the relative masses of the elements below. (Hint: The top number in each element box) Hydrogen Carbon Nitrogen Oxygen
CHEM111 UNIT 1 MOLES, FORMULAE AND EQUATIONS QUESTIONS
Lesson 1 1. (a) Deduce the number of protons, neutrons and electrons in the following species: (i) 37 Cl - (ii) 1 H + (iii) 45 Sc 3+ (b) Write symbols for the following species: (i) 8 protons, 8 neutrons,
C2.6 Quantitative Chemistry Foundation
C2.6 Quantitative Chemistry Foundation 1. Relative masses Use the periodic table to find the relative masses of the elements below. (Hint: The top number in each element box) Hydrogen Carbon Nitrogen Oxygen
PRACTICE EXAMINATION QUESTIONS FOR 1.2 AMOUNT OF SUBSTANCE
PRACTICE EXAMINATION QUESTIONS FOR 1.2 AMOUNT OF SUBSTANCE 1. Nitroglycerine, C 3 H 5 N 3 O 9, is an explosive which, on detonation, decomposes rapidly to form a large number of gaseous molecules. The
Chapter 5 Chemical Calculations
Calculating moles Moles and elements Moles and compounds Moles and gases Moles and solutions Calculating formulae Finding the formula Chapter 5 Chemical Calculations Moles and chemical equations Checklist
Stoichiometry. Homework EC. cincochem.pbworks.com. Academic Chemistry DATE ASSIGNMENT
Unit 10 Resournces Name Academic Chemistry Stoichiometry Homework On-Time LATE DATE ASSIGNMENT 100 70 10.1 10.2 10.3 10.4 10.5 10.6 EC 16 cincochem.pbworks.com Stoichiometry Live in the now. Garth Algar
UNIT 1 Chemical Reactions Part II Workbook. Name:
UNIT 1 Chemical Reactions Part II Workbook Name: 1 Molar Volume 1. How many moles of a gas will occupy 2.50 L at STP? 2. Calculate the volume that 0.881 mol of gas at STP will occupy. 3. Determine the
Stoichiometry Part 1
Stoichiometry Part 1 Formulae of simple compounds Formulae of simple compounds can be deduced from their ions/valencies but there are some that you should know off by heart. You will learn these and more
Funsheet 3.0 [WRITING & BALANCING EQUATIONS] Gu/R. 2017
![Funsheet 3.0 [WRITING & BALANCING EQUATIONS] Gu/R. 2017](/thumbs/80/82478584.jpg "Funsheet 3.0 [WRITING & BALANCING EQUATIONS] Gu/R. 2017")
Funsheet 3.0 [WRITING & BALANCING EQUATIONS] Gu/R. 2017 Balance the following chemical equations. Remember, it is not necessary to write "1" if the coefficient is one. 1. N 2 + H 2 NH 3 2. KClO 3 KCl +
Balancing Equations Notes
. Unit 9 Chemical Equations and Reactions What is a Chemical Equation? A is a written representation of the process that occurs in a chemical reaction. A chemical equation is written with the (starting
Stoichiometry study of the relationships in a
Note Taking Guide: Episode 801 Name Stoichiometry study of the relationships in a based on equations 2 Mg + O 2 2 MgO The in a give the for the involved in the. Ex. Problem: When elemental aluminum reacts
Quantitative Chemistry
Quantitative Chemistry When we do experiments to measure something in Chemistry, we: Repeat experiments (usually 3 times) to improve the reliability of the results, by calculating an average of our results.
AQA Chemistry GCSE. Topic 3: Quantitative Chemistry. Flashcards.
AQA Chemistry GCSE Topic 3: Quantitative Chemistry Flashcards What is the law of conservation of mass? What is the law of conservation of mass? The law of conservation of mass states that no atoms are
(DO NOT WRITE ON THIS TEST)
Final Prep Chap 8&9 (DO NOT WRITE ON THIS TEST) Multiple Choice Identify the choice that best completes the statement or answers the question. 1. After the correct formula for a reactant in an equation
Chapter 1 Chemical Reactions & Equations
CBSE Class 10th NCERT Science Chapter 1 Chemical Reactions & Equations Intext Questions On Page 6 Question 1: Why should a magnesium ribbon be cleaned before burning in air? Magnesium is an extremely reactive
Quantitative Chemistry. AQA Chemistry topic 3
Quantitative Chemistry AQA Chemistry topic 3 3.1 Conservation of Mass and Balanced Equations Chemical Reactions A chemical reaction is when atoms are basically rearranged into something different. For
3. Which postulate of Dalton s atomic theory is the result of the law of conservation of mass?
1 1. In a reaction, 5.3 g of sodium carbonate reacted with 6 g of ethanoic acid. The products were 2.2 g of carbon dioxide, 0.9 g water and 8.2 g of sodium ethanoate. Show that these observations are in
TOPIC 9. CHEMICAL CALCULATIONS III - stoichiometry.
TOPIC 9. CHEMICAL CALCULATIONS III - stoichiometry. Stoichiometric calculations. By combining a knowledge of balancing equations with the concept of the mole, it is possible to easily calculate the masses
Chapter 9. Table of Contents. Stoichiometry. Section 1 Introduction to Stoichiometry. Section 2 Ideal Stoichiometric Calculations
Stoichiometry Table of Contents Section 1 Introduction to Stoichiometry Section 2 Ideal Stoichiometric Calculations Section 3 Limiting Reactants and Percentage Yield Section 1 Introduction to Stoichiometry
2.9 The Mole and Chemical Equations:
2.9 The Mole and Chemical Equations: Stoichiometry Whether you are making omelettes in a kitchen or soap in a factory, you need to know the quantities of ingredients required to produce a certain quantity
Class IX Chapter 3 Atoms and Molecules Science
Class IX Chapter 3 Atoms and Molecules Science Question 1: In a reaction, 5.3 g of sodium carbonate reacted with 6 g of ethanoic acid. The products were 2.2 g of carbon dioxide, 0.9 g water and 8.2 g of
Revision Checklist :4.3 Quantitative Chemistry
Revision Checklist :4.3 Quantitative Chemistry Conservation of Mass The law of conservation of mass states that no atoms are lost or made during a chemical reaction so the mass of the products equals the
IGCSE (9-1) Edexcel - Chemistry
IGCSE (9-1) Edexcel - Chemistry Principles of Chemistry Chemical Formulae, Equations and Calculations NOTES 1.25: Write word equations and balanced chemical equations (including state symbols): For reactions
1 Chemical Reactions and Equations
1 Intext Questions On Page 6 Question 1. Why should a magnesium ribbon be cleaned before burning in air? Magnesium ribbon reacts with CO present in air to form a protective and inert layer of magnesium
Balancing Equations Notes
. Unit 9 Chemical Equations and Reactions What is a Chemical Equation? A Chemical Equation is a written representation of the process that occurs in a chemical reaction. A chemical equation is written
7.1 Describing Reactions. Burning is a chemical change. When a substance undergoes a chemical change, a chemical reaction is said to take place.
Burning is a chemical change. When a substance undergoes a chemical change, a chemical reaction is said to take place. Chemical Equations What is the law of conservation of mass? The law of conservation
Balancing Equations Notes
. Unit 6 Chemical Equations and Reactions What is a Chemical Equation? A Chemical Equation is a written representation of the process that occurs in a chemical reaction. A chemical equation is written
Stoichiometry Dry Lab
Stoichiometry Dry Lab Name: Mole-Mass Conversions The molar mass of a substance is the conversion factor that allows us to convert between the mass of a substance (in grams) and the number of moles of
Chemical reactions: Chemical reactions change substances into other substances.
Chemical reactions: Chemical reactions change substances into other substances. A chemical equation is used to represent a reaction. This has the form: reactants à products Word equations use the names
If Sally has 4.56 x atoms of oxygen in a sample of aluminum oxide, how many kilograms of aluminum does she have?
If Sally has 4.56 x 10 34 atoms of oxygen in a sample of aluminum oxide, how many kilograms of aluminum does she have? Bertha has.025 milligrams of sodium that she got from a sample of Sodium phosphate,
Balancing Equations Notes
. Unit 7 Chemical Equations and Reactions What is a Chemical Equation? A is a written representation of the process that occurs in a chemical reaction. A chemical equation is written with the (starting
Symbols. Table 1 A set of common elements, their symbols and physical state
Symbols Symbols are a kind of shorthand system for writing down elements and compounds. Each element has a particular one or two letter symbol. The first letter of a symbol is always capital, and if there
Formulae of simple compounds
4. Stoichiometry Formulae of simple compounds Formulae of simple compounds can be deduced from their ions but there are some that you should know off by heart. You must learn the following formulae: Carbon
CHAPTER 11 Stoichiometry Defining Stoichiometry
CHAPTER 11 Stoichiometry 11.1 Defining Stoichiometry Stoichiometry is the study of quantitative relationships between amounts of reactants used and products formed by a chemical reaction. Stoichiometry
Stoichiometry CHAPTER 12
CHAPTER 12 Stoichiometry 12.1 Using Everyday Equations Stoichiometry is the calculation of quantities in chemical equations. * The balanced equation gives the ratios for the reactants and products. 3 eggs
Unit 7: Stoichiometry Homework Packet (85 points)
Name: Period: By the end of the Unit 7, you should be able to: Chapter 12 1. Use stoichiometry to determine the amount of substance in a reaction 2. Determine the limiting reactant of a reaction 3. Determine
C4 Quick Revision Questions
C4 Quick Revision Questions H = Higher tier only SS = Separate science only Question 1... of 50 Write the equation which shows the formation of iron oxide Answer 1... of 50 4Fe + 3O 2 2Fe 2 O 3 Question
End of chapter exercises
End of chapter exercises Problem 1: Write only the word/term for each of the following descriptions: 1. the mass of one mole of a substance 2. the number of particles in one mole of a substance Answer
The Mole. Relative Atomic Mass Ar
STOICHIOMETRY The Mole Relative Atomic Mass Ar Relative Molecular Mass Mr Defined as mass of one atom of the element when compared with 1/12 of an atom of carbon-12 Some Ar values are not whole numbers
1.24 Calculations and Chemical Reactions
1.24 Calculations and Chemical Reactions Converting quantities between different substances using a balanced equation A balanced chemical equation tells us the number of particles of a substance which
Chemical Reactions. Chemical changes are occurring around us all the time
Chemical changes are occurring around us all the time Food cooking Fuel being burned in a car s engine Oxygen being used in the human body The starting materials are called reactants The ending materials
Unit 10: Stoichiometry Funsheets. Part A: Balanced Chemical Equations- Balance the following chemical equations.
Unit 10: Stoichiometry Funsheets Part A: Balanced Chemical Equations- Balance the following chemical equations. 1) Al + Cl 2 AlCl 3 2) Mg(ClO) 2 MgCl 2 + O 2 3) FeCl 3 + LiOH Fe(OH) 3 + LiCl 4) Na + O
Proportional Relationships
Stoichiometry Video Proportional Relationships 2 1/4 c. flour 1 tsp. baking soda 1 tsp. salt 1 c. butter 3/4 c. sugar 3/4 c. brown sugar 1 tsp vanilla extract 2 eggs 2 c. chocolate chips Makes 5 dozen
VOCABULARY Define. 1. reactants. 2. products. 3. chemical equation. 4. precipitate. 5. word equation
CHAPTER 8 HOMEWORK 8-1 (pp. 241 245) Define. 1. reactants 2. products 3. chemical equation 4. precipitate 5. word equation GRAPHIC ORGANIZER Complete the chart by listing three signs that suggest that
Chapter 3 Stoichiometry
Chapter 3 Sep 22 1:45 PM Average atomic mass: The weighted average of all isotopes of a specific element. Takes into consideration abundance of each isotope. (% x M 1 ) + (% x M 2 ) +... Sep 22 1:45 PM
TOPIC 4: THE MOLE CONCEPTS
TOPIC 4: THE MOLE CONCEPTS INTRODUCTION The mass is gram (g) of 1 mole of substances is called its.. 1 mole of substances has.. particles of a substances The mass of 1 mole of substances is always equal
CHAPTER 1 QUANTITATIVE CHEMISTRY
Page 4 Ex 4 (a) element; (b) mixture; (c) compound; (d) element; (e) compound 5. (a) mixture; (b) compound; (c) mixture; (d) element; (e) compound. Page 5 Ex 1.1 3. C 4. D 5. C 6. D 7. a) 0.20 b) 1.2 10
Unit IV: Chemical Equations & Stoichiometry
Unit IV: Chemical Equations & Stoichiometry A. The chemical equation B. Types of chemical reactions A. Activity series of metals B. Solubility rules C. Rules for writing and balancing equations D. Calculations
CHAPTER 9 CHEMICAL QUANTITIES
Chemistry Name Hour Chemistry Approximate Timeline Students are expected to keep up with class work when absent. CHAPTER 9 CHEMICAL QUANTITIES Day Plans for the day Assignment(s) for the day 1 Begin Chapter
GraspIT AQA GCSE Quantitative changes
A. Chemical measurements part 1 Chemical changes and conservation of mass 1. A piece of magnesium was heated in a crucible. a) Write a balance equation to show how the magnesium reacts with oxygen. (2)
Lesson (1) Mole and chemical equation
Lesson (1) Mole and chemical equation 1 When oxygen gas reacts with magnesium, magnesium oxide is formed. Such Reactions are described by balanced equations known as "chemical equations" Δ 2Mg(s) + O2(g)
SCIENCE JSUNIL TUTORIAL CLASS 9. Activity 1
Activity Objective To understand, that there is a change in mass when a chemical change takes place. (To understand law of conservation of mass experimentally). Procedure. Take one of the following sets,
Questions Booklet. UNIT 1: Principles & Applications of Science I CHEMISTRY SECTION. Level 3 Applied Science. Name:.. Teacher:..
Level 3 Applied Science UNIT 1: Principles & Applications of Science I CHEMISTRY SECTION Questions Booklet Name:.. Teacher:.. Level 3 Applied Science 2017-2018 Unit 1 (Chemistry) 1 1. State the relative
burette filled with sulphuric acid conical flask 25.0 cm 3 of sodium hydroxide(aq) concentration 2.24 mol / dm 3
1 Crystals of sodium sulphate-10-water, Na 2 SO 4.10H 2 O, are prepared by titration. burette filled with sulphuric acid conical flask 25.0 cm 3 of sodium hydroxide(aq) concentration 2.24 mol / dm 3 (a)
Question 8 Chemical properties of metals and nonmetals. 1) magnesium 2) sulfur trioxide 3) iron (II) hydroxide 4) sodium nitrate
Question 8 Chemical properties of metals and nonmetals 1. Calcium oxide doesn t react with 1) NaNO 3 2) HCl 3) CO 2 4) H 2 O 2. Calcium oxide reacts with both of the following 1) SO 2 and O 2 2) H 2 O
For the element X in the ionic compound MX, explain the meaning of the term oxidation state.
1. (a) By referring to electrons, explain the meaning of the term oxidising agent.... For the element X in the ionic compound MX, explain the meaning of the term oxidation state.... (c) Complete the table
CHAPTER 8 SALTS. NaCl. A salt is an ionic substance produced when the hydrogen ion of the acid is replaced by metal ion or an ammonium ion.
CHAPTER 8 SALTS A salt is an ionic substance produced when the hydrogen ion of the acid is replaced by metal ion or an ammonium ion. The salt consists of two parts, cation from base and anion from acid.
CHAPTER 7 CHEMICAL REACTIONS: AN INTRODUCTION
Chemistry Name Hour Chemistry Approximate Timeline Students are expected to keep up with class work when absent. CHAPTER 7 CHEMICAL REACTIONS: AN INTRODUCTION Day Plans for the day Assignment(s) for the
F321: Atoms, Bonds and Groups Structure & Bonding
F321: Atoms, Bonds and Groups Structure & Bonding 1. This question is about different models of bonding and molecular shapes. Magnesium sulfide shows ionic bonding. What is meant by the term ionic bonding?
Outcomes: Interpret a balanced chemical equation in terms of moles, mass and volume of gases. Solve stoichiometric problems involving: moles, mass,
Stoichiometry Outcomes: Interpret a balanced chemical equation in terms of moles, mass and volume of gases. Solve stoichiometric problems involving: moles, mass, volume, and heat of reaction. Stoichiometry
LLT Education Services
Rahul Arora 18. What chemical reaction is involved in the corrosion of iron? 19. Aluminum metal when burnt in air forms aluminium oxide. Write the balanced chemical equation for the reaction. 20. Is the
SCH4U Chemistry Review: Fundamentals
SCH4U Chemistry Review: Fundamentals Particle Theory of Matter Matter is anything that has mass and takes up space. Anything around us and in the entire universe can be classified as either matter or energy.
Chapter 1 IB Chemistry Warm Ups Stoichiometry. Mrs. Hilliard
Chapter 1 IB Chemistry Warm Ups Stoichiometry Mrs. Hilliard Vocabulary 1. Atomic theory 2. Kelvin 3. Mole 4. Relative abundance 5. Molar Mass 6. Empirical formula 7. Molecular formula 8. Stoichiometry
Stoichiometry CHAPTER 12
CHAPTER 12 Stoichiometry 12.1 Using Everyday Equations Stoichiometry is the calculation of quantities in chemical equations. Jan 16 7:57 AM May 24 10:03 AM * The balanced equation gives the ratios for
4.4. Revision Checklist: Chemical Changes
4.4. Revision Checklist: Chemical Changes Reactivity of metals When metals react with other substances the metal atoms form positive ions. The reactivity of a metal is related to its tendency to form positive
Formulae,Stoichiometry and The Mole Concept
Formulae,Stoichiometry and The Mole Concept FORMULAE AND CHEMICAL EQUATIONS: 1. The following is an example of a balanced chemical equation with state symbols. Na 2 CO 3 (s) + 2HCl(aq) 2NaCl(aq) + CO 2
5. The mass of oxygen required to completely convert 4.0 grams of hydrogen to water is 1) 8.0 grams; 2) 2.0 grams; 3) 32 grams; 4) 16 grams.
CHEMISTRY TEST NAME: MASS AND VOLUME DATE: EQUATION RELATIONSHIPS Directions: For each of the following questions, choose the number that best answers the question and place it on your answer sheet. Directions:
How did JJ Thomson conclude that the mobile charged particle in the atom had a ( ) charge.
Name Veritas Class Period Chemistry: Final Exam Practice Problems The final exam will focus on material covered in the spring semester. However, note that much of the material learned early in the year
Stoichiometry Dry Lab
Stoichiometry Dry Lab Name: Mole-Mass Conversions The molar mass of a substance is the conversion factor that allows us to convert between the mass of a substance (in grams) and the number of moles of
Chapter 8 Chemical Reactions
Chemistry/ PEP Name: Date: Chapter 8 Chemical Reactions Chapter 8: 1 7, 9 18, 20, 21, 24 26, 29 31, 46, 55, 69 Practice Problems 1. Write a skeleton equation for each chemical reaction. Include the appropriate
SCHEIKUNDE KLAS 3 REACTIES
MOLECULAR FORMULAS EXERCISE 1: MOLECULAR FORMULAS LEVEL 1 A H 2 O C 2 H 6 C C 2 H 6 O D CO 2 E F C 4 H 8 O CHN EXERCISE 2: MOLECULAR FORMULAS LEVEL 1 A HNO C 3 H 6 O C C 2 H 2 D C 6 H 5 NO E C 5 H 8 O
What is this booklet for: This is simply designed to be a bridging Chemistry booklet. It has work to prepare you for the A level you are starting in
1 What is this booklet for: This is simply designed to be a bridging Chemistry booklet. It has work to prepare you for the A level you are starting in September. It contains a series of topics that you
Unit 9 Stoichiometry Notes
Unit 9 Stoichiometry Notes Stoichiometry is a big word for a process that chemist s use to calculate amounts in reactions. It makes use of the coefficient ratio set up by balanced reaction equations to
Science NCERT Exemplar Solutions Chapter 1: Chemical Reactions and Equations
Science NCERT Exemplar Solutions Chapter 1: Chemical Reactions and Equations Multiple Choice Questions (MCQs) Q. 1 Which of the following is not a physical change? (a) Boiling of water to give water vapour
CHAPTER 12. Chemists use balanced to calculate how much reactant is needed or product is formed in a reaction. + 3H 2NH. Hon Chem 12.
CHAPTER 12 Stoichiometry is the calculation of quantities using different substances in chemical equations. Based on the Law of Conservation of Mass. Mg(s) + How many moles of H Chemists use balanced to
UNIT 3 AMOUNT OF SUBSTANCE AND MEASUREMENT UNIT 3. AMOUNT OF SUBSTANCE AND MEASUREMENT Student Version
UNIT 3 AMOUNT OF SUBSTANCE AND MEASUREMENT Student Version Contents a) Introduction b) Safety Precautions in the Laboratory c) Quantities, Units and Measuring Instruments d) Measuring Densities e) The
Unit 5. Chemical reactions
Unit 5. Chemical reactions Index 1.- Physical and chemical phenomena...2 2.- What is a chemical reaction?...2 2.1. Chemical equation...2 2.2.- Balance of chemical reactions. Law of conservation of mass...3
Revision Checklist :4.3 Quantitative Chemistry
Revision Checklist :4.3 Quantitative Chemistry Conservation of Mass The law of conservation of mass states that no atoms are lost or made during a chemical reaction so the mass of the products equals the
TYPES OF CHEMICAL REACTIONS
TYPES OF CHEMICAL REACTIONS Precipitation Reactions Compounds Soluble Ionic Compounds 1. Group 1A cations and NH 4 + 2. Nitrates (NO 3 ) Acetates (CH 3 COO ) Chlorates (ClO 3 ) Perchlorates (ClO 4 ) Solubility
Name: Unit 9- Stoichiometry Day Page # Description IC/HW
Name: Unit 9- Stoichiometry Day Page # Description IC/HW Due Date Completed ALL 2 Warm-up IC 1 3 Stoichiometry Notes IC 1 4 Mole Map IC X 1 5 Mole to Mole Practice IC 1 6 Mass to Mole Practice IC 1/2 X
F321: Atoms, Bonds and Groups Acids
F321: Atoms, Bonds and Groups Acids 49 Marks 1. A student carries out experiments using acids, bases and salts. Calcium nitrate, Ca(NO 3 ) 2, is an example of a salt. The student prepares a solution of
Chemical calculations
Chemical calculations Basic concepts: 1 Those ions that are not involved in a chemical reaction are called Spectator ions 2 The relationship between the amounts (measured in moles) of reactants and products
5. [7 points] What is the mass of gallons (a fifth) of pure ethanol (density = g/cm 3 )? [1 gallon = Liters]
![5. [7 points] What is the mass of gallons (a fifth) of pure ethanol (density = g/cm 3 )? [1 gallon = Liters]](/thumbs/71/66177002.jpg "5. [7 points] What is the mass of gallons (a fifth) of pure ethanol (density = g/cm 3 )? [1 gallon = Liters]")
1 of 6 10/20/2009 3:55 AM Avogadro s Number, N A = 6.022 10 23 1. [7 points] Given the following mathematical expression: (15.11115.0)/(2.154 10 3 ) How many significant figures should the answer contain?
The ions/polyatomic ions, solubility rules, and activity series will need to be memorized.
AP Chemistry Summer Assignment 2012 The summer assignment is designed to help you practice: - writing chemical formulas, names, and chemical equations - reaction types - predicting reaction products -
Reaction Writing Sheet #1 Key
Reaction Writing Sheet #1 Key Write and balance each of the following reactions and indicate the reaction type(s) present: 1. zinc + sulfur zinc sulfide 8 Zn (s) + S 8 (s) 8 ZnS (s) synthesis 2. potassium
UNIT 9 - STOICHIOMETRY
General Stoichiometry Notes STOICHIOMETRY: tells relative amts of reactants & products in a chemical reaction Given an amount of a substance involved in a chemical reaction, we can figure out the amount
Identify the reaction type, predict the products, and balance the equations. If it is a special decomposition or synthesis, identify which kind.
Identify the reaction type, predict the products, and balance the equations. If it is a special decomposition or synthesis, identify which kind. 1. calcium + oxygen 2. cupric carbonate 3. aluminum + hydrochloric
Practice Problems: Set #3-Solutions
Practice Problems: Set #3-Solutions IIa) Balance the following equations:(10) 1) Zn (s) + H 3 PO 4 (aq) Zn 3 (PO 4 ) 2 (s) + H 2 (g) 3Zn (s) + 2H 3 PO 4 (aq) Zn 3 (PO 4 ) 2 (s) + 3H 2 (g) 2. Mg 3 N 2 (s)
MOLE CONCEPT AND STOICHIOMETRY
MOLE CONCEPT AND STOICHIOMETRY Dear Reader You have studied about the term 'mole' in your previous class. It is defined as the amount of a substance containing as many constituting particles (atoms, molecules
THE MOLE - PART 2. Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.
THE MOLE - PART 2 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Which one of the following statements is a quantitative observation? a.
Unit 4. Chemical Calculations
Index Unit 4. Chemical Calculations 1.- Chemical reactions...2 1.1.- What is a chemical reaction?...2 1.2 The law of conservation of mass...2 1.3 Balance of chemical reactions...2 1.4.- Rate of reaction...3
REACTION RATES AND REVERSIBLE REACTIONS
NAME SCHOOL INDEX NUMBER DATE REACTION RATES AND REVERSIBLE REACTIONS 1. 1989 Q 4 P1 The graph shows the loss in total mass of a mixture of marble chips and dilute hydrochloric acid with time at 250C Loss