Name: Period: Date: Skill 1: Determine the type of equation Evidence:
|
|
- Arron Copeland
- 5 years ago
- Views:
Transcription
1 Name: Period: Date: KIPP NYC College Prep General Chemistry CHEMISTRY LAB #12 Types of Reactions: Lab 60 MINUTES PRELAB Do Now! Consider the following reaction that produces NO 2. Skill 1: Determine the type of equation Evidence: N 2(g) + O 2(g) NO 2(g) Skill 2: Balancing Equations. Balance the equation above using the lowest whole number ratios. Skill 3: Missing Mass In the reaction above 10 g of N 2 reacts to produce 25 g of NO 2. How many grams of O 2 reacted? Skill 4: Empirical Formulas Explain why NO 2 is a molecular and empirical formula. Skill 5: Mole to Mole Ratios Write the mole ratios of NO 2 to O 2 in fraction form. PURPOSE: To observe and analyze different types of chemical reactions. MATERIALS: Solid Fe, S, Solutions of HCl, Na 2CO 3, CaCl 2 Pipettes for each solution, scoopula for iron Demo Procedure Synthesis Reaction 1. Watch your teacher combine iron filings and sulfur. In data table 1, record observations. Observations: 1. Fe and S + heat! Table 1: Fe(s) and S(s) Synthesis reaction
2 Lab Procedure and Data Single Replacement Reactions: 1. Iron (Fe) and Hydrochloric Acid (HCl): Place a small sample of iron filings (grain of rice) in a test tube. Add approximately.5 ml (half a dropper) of 1 M HCl. Caution: hydrochloric acid is potentially dangerous is on skin or eyes. Please wear gloves and eye protection Table 2: Single Replacement Reactions Reaction Observations Fe and HCl Lab Procedure and Data Double Replacement Reactions: 2. Calcium Chloride and Sodium Carbonate: Add approximately.5 ml (half a dropper) of calcium chloride (CaCl 2) into a second test tube. Add approximately.5 ml (half a dropper) of sodium carbonate (Na 2CO 3). Stir. Record your observations. Table 3: Double Replacement Reactions Reaction Observations Calcium Chloride and Sodium Carbonate ANALYSIS QUESTIONS: Directions: Answer the following questions in your lab notebook based on your results. Synthesis Reaction: 1. Fe(s) + S(s) Fe 2S 3(s) b) Explain how this is an example of a synthesis reaction. d) If you start with 4.0 mol of Fe, how many mol of Fe 2S 3 will be produced? Missing Mass Review Problem: 2. In a second trial, Mr. Becker added 150 g of Fe to a beaker and heated it with sulfur. 250 g of Fe 2S 2 was produced. How much S reacted? g S.
3 Single Replacement Reactions: 3. Fe(s) + HCl(aq) FeCl 2(aq) + H 2(g) b) Explain how this is an example of a single replacement reaction. d) If you start with 4.0 mol of Fe, how many mol of FeCl 2 will be produced? Double Replacement Reactions: 4. CaCl 2(aq) + Na 2CO 3(aq) CaCO 3(s) + NaCl (aq) b) Explain how this is an example of a double replacement reaction. d) If you start with 2.0 mol of CaCl 2, how many mol of CaCO 3 will be produced? Regents Review A 1.00-mole sample of glucose, C 6H 12O 6, completely reacts with oxygen, as represented by the balanced equation below. C 6H 12O 6(s) + 6O 2(g) 6CO 2(g) + 6H 2O(l) + energy 5. Write the empirical formula for glucose. [1] Baking soda, NaHCO 3, can be commercially produced during a series of chemical reactions called the Solvay process. In this process, NH 3(aq), NaCl(aq), and other chemicals are used to produce NaHCO3(s) and NH 4Cl(aq). To reduce production costs, NH 3(aq) is recovered from NH 4Cl(aq) through a different series of reactions. This series of reactions can be summarized by the overall reaction represented by the unbalanced equation below. NH 4Cl(aq) + CaO(s) NH 3(aq) + H 2O(l) + CaCl 2(aq) 6. Balance the equation for the overall reaction used to recover NH3(aq), using the smallest wholenumber coefficients. [1]
4 Name: Date Completed: CHEMISTRY LAB #12 Identifying Chemical Reactions 60 MINUTES RUBRIC Period: Minutes Earned: Data, Observation, Data Analysis All data is properly recorded and includes details from each test. All data tables are set up in a logical, easy-to-read manner. All data is properly recorded and includes details from each test Tables are set up but not entirely easy to follow. Most data is properly recorded. Some details might be missing. Tables are set up but not entirely easy to follow. Data is incomplete. Data table is not present. Analysis Questions All answers are All answers are 4-5 answers are Most answers are 2-3 answers are Most answers are Less than 2 answers are OVERALL LAB: /8 POINTS (Scaled to 100) FINAL SCALED SCORE: Complete! Need to Revise
5 Types of Reactions Within your team, one person must be responsible for all of the following tasks. Material Expert: Responsible for picking up supplies and making sure everything is placed back into the basket in a clean way. Reactor: Responsible for mixing the contents of test tubes, placing test tubes in empty beaker and placing beaker on balance. Clean-up Crew: Responsible for rinsing out graduated cylinders and test tubes at appropriate times. Data Recorder: Responsible for initially writing down all observations and measurements. Everyone will then record this data in their lab books appropriately. Types of Reactions Within your team, one person must be responsible for all of the following tasks. Material Expert: Responsible for picking up supplies and making sure everything is placed back into the basket in a clean way. Reactor: Responsible for mixing the contents of test tubes, placing test tubes in empty beaker and placing beaker on balance. Clean-up Crew: Responsible for rinsing out graduated cylinders and test tubes at appropriate times. Data Recorder: Responsible for initially writing down all observations and measurements. Everyone will then record this data in their lab books appropriately.
Part I: Solubility!!!
Name: Period: Date: KIPP NYC College Prep General Chemistry UNIT 12: Solutions Do Now Review Day Concepts/Definitions (1) A solution is made by completely dissolving 40 grams of KCl(s) in 100 grams of
More informationRead the lab thoroughly. Answer the pre-lab questions that appear at the end of this lab exercise.
Experiment 10 Stoichiometry- Gravimetric Analysis Pre-lab Assignment Read the lab thoroughly. Answer the pre-lab questions that appear at the end of this lab exercise. Purpose The purpose this experiment
More information7-A. Inquiry INVESTIGATION. 322 MHR Unit 3 Quantities in Chemical Reactions. Skill Check. Safety Precautions
Inquiry INVESTIGATION 7-A Skill Check Initiating and Planning Performing and Recording Analyzing and Interpreting Communicating Safety Precautions Wear safety eyewear throughout this investigation. Wear
More informationVOCABULARY Define. 1. stoichiometry. 2. composition stoichiometry. 3. reaction stoichiometry. 4. unknown. 5. mole ratio
CHAPTER 9 HOMEWORK 9-1 (pp. 275 279) Define. 1. stoichiometry 2. composition stoichiometry 3. reaction stoichiometry 4. unknown 5. mole ratio SKILL BUILDER On a separate sheet of paper, write five possible
More informationChemistry 3202 Lab 6 Hess s Law 1
Chemistry 3202 Lab 6 Hess s Law 1 Lab 6 Hess's Law Introduction Chemical and physical changes are always accompanied by a change in energy. Energy changes may be observed by detecting heat flow between
More informationLab #9 Stoichiometric Relationships & Theoretical Yield
Stoichiometric Relationships & Theoretical Yield Name: Nov. 28, 2016 Background and Purpose: Carbonates when reacted with acids will produce carbon dioxide, water and an ionic salt. In this lab, we will
More informationName: Period: Date: CHEMISTRY LAB #4 THE ILLUSION OF BLING: Using Density to Identify an Unknown Metal 90 MINUTES
Name: Period: Date: KIPP NYC College Prep General Chemistry CHEMISTRY LAB #4 THE ILLUSION OF BLING: Using Density to Identify an Unknown Metal 90 MINUTES Do Now Pre- Lab Information: Lab Equipment and
More informationCulinary Chemistry: Stoichiometry Made Simple
Culinary Chemistry: Stoichiometry Made Simple Background Stoichiometry is based on the law of conservation of mass which states that the mass of the reactants in a chemical reaction equals the mass of
More informationApply the ideal gas law (PV = nrt) to experimentally determine the number of moles of carbon dioxide gas generated
Teacher Information Ideal Gas Law Objectives Determine the number of moles of carbon dioxide gas generated during a reaction between hydrochloric acid and sodium bicarbonate. Through this investigation,
More informationLimiting Reactants Lab
Name: Teacher s Name: Class: Block: Date: Partners: Limiting Reactants Lab Purpose: Through experimentation, determine the limiting reactant and the percent yield in a chemical reaction that generates
More information"We are what we repeatedly do. Excellence, therefore, is not an act but a habit." --Aristotle--
CHEMISTRY 101 Hour Exam II October 25, 2016 Adams/Huynh Name Signature Section "We are what we repeatedly do. Excellence, therefore, is not an act but a habit." --Aristotle-- This exam contains 17 questions
More informationStoichiometry ( ) ( )
Stoichiometry Outline 1. Molar Calculations 2. Limiting Reactants 3. Empirical and Molecular Formula Calculations Review 1. Molar Calculations ( ) ( ) ( ) 6.02 x 10 23 particles (atoms or molecules) /
More informationStoichiometry 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
More informationor a chemical change in several experimental trials.
Regular Chemistry Lab Chemical and Physical Changes. Intro: As we study matter, we base most of our classification and identification of pure substances on chemical and physical properties. A physical
More informationNaCl (aq) + HOH (l) + (aq) + Cl (l) Eg. HCl (aq) + NH 3(aq) In both cases the acid and base react and neutralize each other.
Acid Base Reactions An acid base reaction is called a neutralization reaction. Eg. HCl (aq) + NaOH (aq) NaCl (aq) + HOH (l) In grade 10 you learned that acid base reactions produce salt and water, however,
More informationChemical Reaction Lab Bagged Chemical Reactions
Learning Target: The student experiments and determines that the rates of reaction among atoms and molecules depend on the concentration, pressure, and temperature of the reactants and the presence or
More informationPage 1 Name: 2Al 3+ (aq) + 3Mg(s) 3Mg 2+ (aq) + 2Al(s) Fe 2 O 3 + 2Al Al 2 O 3 + 2Fe
9666-1 - Page 1 Name: 1) What is the oxidation number of chromium in the chromate ion, CrO 2-4? A) +8 B) +3 C) +2 D) +6 2) What is the oxidation number of sulfur in Na 2 S 2 O 3? A) +6 B) +4 C) +2 D) -1
More informationQ1.A student investigated the rate of reaction between sodium thiosulfate solution and dilute hydrochloric acid, as shown in Figure 1.
Q1.A student investigated the rate of reaction between sodium thiosulfate solution and dilute hydrochloric acid, as shown in Figure 1. The reaction produced a precipitate, which made the mixture turn cloudy.
More informationGeneral Stoichiometry Notes STOICHIOMETRY: tells relative amts of reactants & products in a chemical reaction
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
More informationEXPERIMENT 6 Empirical Formula of a Compound
EXPERIMENT 6 Empirical Formula of a Compound INTRODUCTION Chemical formulas indicate the composition of compounds. A formula that gives only the simplest ratio of the relative number of atoms in a compound
More information2. 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
More informationTitrations. Method for Titration. N Goalby chemrevise.org 1. Using the pipette
Titrations Titrations are done often to find out the concentration of one substance by reacting it with another substance of known concentration. They are often done with neutralisation reactions, but
More informationRevision 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
More information5 Formulae, equations and amounts of substance Answers to Exam practice questions
Pages 147 149 Exam practice questions 1 a) Cu 2 S(s) + 2O 2 (g) 2CuO(s) + SO 2 (g) All numbers correct [1] b) 2FeS(s) + O 2 (g) + 2SiO 2 (s) 2FeSiO (s) + 2SO 2 (g) All five numbers correct [], four numbers
More information9-1 The Nature of Chemical Reactions
9-1 The Nature of Chemical Reactions What are chemical reactions and why do they occur? A chemical reaction is a process in which one or more substances are converted into new substances with different
More informationChapter 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
More informationExperiment 8 - Double Displacement Reactions
Experiment 8 - Double Displacement Reactions A double displacement reaction involves two ionic compounds that are dissolved in water. In a double displacement reaction, it appears as though the ions are
More informationWhat Do You Think? Investigate GOALS
Activity 2 More Chemical Changes GOALS In this activity you will: Observe several typical examples of evidence that a chemical change is occurring. Make generalizations about the combinations of materials
More informationL REACTIONS AND EQUATIONS
Experiment 7 Name: CHEMI 20 Ca L REACTIONS AND EQUATIONS In this experiment, you will observe changes that occur during chemical reactions. You will also balance the corresponding chemical equations and
More information19.4 Neutralization Reactions > Chapter 19 Acids, Bases, and Salts Neutralization Reactions
Chapter 19 Acids, Bases, and Salts 19.1 Acid-Base Theories 19.2 Hydrogen Ions and Acidity 19.3 Strengths of Acids and Bases 19.4 Neutralization Reactions 19.5 Salts in Solution 1 Copyright Pearson Education,
More informationStoichiometry 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
More informationGoal: During this lab students will gain a quantitative understanding of limiting reagents.
LIMITING REAGENT LAB: THE REACTION BETWEEN VINEGAR AND BAKING SODA Goal: During this lab students will gain a quantitative understanding of limiting reagents. Safety: Safety goggles should be worn at all
More informationMoles Lab Activity 1: PCU (Popcorn Counting Units)
Moles Lab Activity 1: PCU (Popcorn Counting Units) Materials: A container of each of the following: Popcorn kernels Another type of beans A large unopened bag of popcorn Kernels Balance Safety goggles
More informationMoles Lab Activity 2: Elements Copper
Materials Sample of copper Balance Pre-1982 penny Moles Lab Activity 2: Elements Copper Procedure Take the necessary measurements, and record them with units. Show all your calculations, rounding your
More informationCOEFFICIENTS. - Experimentally, we can usually determine the reactants and products of a reaction
81 COEFFICIENTS - Experimentally, we can usually determine the reactants and products of a reaction - We can determine the proper ratios of reactants and products WITHOUT further experiments, using a process
More informationDETERMINING AND USING H
DETERMINING AND USING H INTRODUCTION CHANGES IN CHEMISTRY Chemistry is the science that studies matter and the changes it undergoes. Changes are divided into two categories: physical and chemical. During
More informationThe photograph in the textbook provides evidence that an exothermic chemical reaction is occurring.
Preview Lesson Starter Objectives Indications of a Chemical Reaction Characteristics of Chemical Equations Significance of a Chemical Equation Balancing Chemical Equations Section 1 Describing Chemical
More informationCharacteristics of Chemical Change
Section 2 Characteristics of Chemical Change What Do You See? Learning Outcomes In this section you will Observe several typical examples of evidence that a chemical change is occurring. Make generalizations
More informationEXPERIMENT 7 Reaction Stoichiometry and Percent Yield
EXPERIMENT 7 Reaction Stoichiometry and Percent Yield INTRODUCTION Stoichiometry calculations are about calculating the amounts of substances that react and form in a chemical reaction. The word stoichiometry
More informationChemistry CP Lab: Additivity of Heats of Reaction (Hess Law)
Chemistry CP Lab: Additivity of Heats of Reaction (Hess Law) Name: Date: The formation or destruction of chemical bonds is always accompanied by an energy exchange between the reactant molecules and the
More informationSafety: Safety goggles should be worn at all times. Students should hold the balloons on the test tubes tightly while the reaction takes place.
LIMITING REAGENT LAB: THE REACTION BETWEEN VINEGAR AND BAKING SODA Goal: During this lab students will gain a quantitative understanding of limiting reagents. Safety: Safety goggles should be worn at all
More information2/22/2019 NEW UNIT! Chemical Interactions. Atomic Basics #19
NEW UNIT! Chemical Interactions Atomic Basics #19 1 Vocabulary: Matter: Anything that has mass and takes up space. Atom: the smallest particle of matter. Element: A pure substance made up of only one type
More informationUnit 5. Chemical Composition
Unit 5 Chemical Composition Counting by Mass Individually mass a few Calculate the average mass of one Can count large numbers of by mass Atomic Mass Unit (amu) 1 amu = 1.66 x 10-24 g Subatomic particles
More informationThermodynamics Enthalpy of Reaction and Hess s Law
P.O. Box 219 Batavia, Illinois 60510 1-800-452-1261 flinn@flinnsci.com Visit our website at: www.flinnsci.com 2003 Flinn Scientific, Inc. All Rights Reserved. Your Safer Source for Science Supplies Thermodynamics
More informationUnit 10 Stoichiometry Chapter 11 of your textbook
Unit 10 Stoichiometry Chapter 11 of your textbook Early Booklet E.C.: + 2 Unit 10.B Hwk. Pts.: / 21 Unit 10.B Lab Pts.: / 14 Late, Incomplete, No Work, No Units Fees? Y / N Learning Targets for Unit 10
More information5 Weak Acids, Bases and their Salts
5 Weak Acids, Bases and their Salts Name: Date: Section: Objectives You will be able to define an acid and a base with the Arrhenius and Brǿnsted-Lowry definitions You will be able to predict the behavior
More information2/24/2010. Mr. Puccetti Spring What toxins have you encountered in your life? 2. How can toxins enter the body? 3. How can toxins harm you?
Mr. Puccetti Spring 2010 how toxins are defined how chemists determine toxicity the mechanisms by which toxic substances act in our bodies and what this has to do with chemical reactions 1. What toxins
More informationLAB TEST Physical and Chemical Changes
NAME: DATE: STATION: LAB TEST Physical and Chemical Changes PURPOSE: To observe physical and chemical changes in matter MATERIALS: 3 medium test tubes 1 small test tube test tube rack test tube holder
More informationCOPYRIGHT FOUNTAINHEAD PRESS
Calorimetry: Heats of Solution Objective: Use calorimetric measurements to determine heats of solution of two ionic compounds. Materials: Solid ammonium nitrate (NH 4 NO 3 ) and anhydrous calcium chloride
More informationPractice Packet Unit 7: Moles & Stoichiometry
PRACTICE PACKET: Unit 7 Moles & Stoichiometry Regents Chemistry: Practice Packet Unit 7: Moles & Stoichiometry Vocabulary: Lesson 1: Lesson 6: Lesson 2: Lesson 4A: Lesson 4B: Lesson 3: Lesson 5: www.chempride.weebly.com
More informationAcid-Base Titration Lab
Acid-Base Titration Lab Name Objectives: - To apply knowledge of molarity to properly dilute a concentrated base - To apply knowledge of solution stoichiometry in order to correctly determine the unknown
More informationHESS S LAW: ADDITIVITY OF HEATS OF REACTION
HESS S LAW: ADDITIVITY OF HEATS OF REACTION LAB THC 1.COMP From Chemistry with Computers, Vernier Software & Technology, 2000 INTRODUCTION In this experiment, you will use a Styrofoam-cup calorimeter to
More informationThermodynamics and the Solubility of Sodium Tetraborate Decahydrate
Thermodynamics and the Solubility of Sodium Tetraborate Decahydrate In this experiment you, as a class, will determine the solubility of sodium tetraborate decahydrate (Na 2 B 4 O 7 10 H 2 O or Na 2 [B
More informationAdditivity of Heats of Reaction: Hess s Law
Additivity of Heats of Reaction: Hess s Law Experiment In this experiment, you will use a Styrofoam-cup calorimeter to measure the heat released by three reactions. One of the reactions is the same as
More informationReaction Stoichiometry and Solution Concentration Q1. FeS(S) + 2HCl(aq) FeCl2(S) + H2S(g) Q2. C6H10(g) + O2(g) CO2(g) + H2O(g) Q3.
Reaction Stoichiometry and Solution Concentration Q1. The reaction between Iron(II) sulfide and HCl is as follows; FeS (S) + 2HCl (aq) FeCl 2(S) + H 2 S (g) What will be the number of moles of each reactant
More informationGeneral Stoichiometry Notes STOICHIOMETRY: tells relative amts of reactants & products in a chemical reaction
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
More informationDetermining the Enthalpy of a Chemical Reaction
Determining the Enthalpy of a Chemical Reaction Computer 13 All chemical reactions involve an exchange of heat energy; therefore, it is tempting to plan to follow a reaction by measuring the enthalpy change
More informationName: Rate of reaction. Class: Higher revision questions. Date: 57 minutes. Time: 56 marks. Marks: Comments: Page 1 of 24
Rate of reaction Higher revision questions Name: Class: Date: Time: 57 minutes Marks: 56 marks Comments: Page of 24 A student investigated the rate of the reaction between magnesium and dilute hydrochloric
More informationDo Now April 24, 2017
Do Now April 24, 2017 Obj: Observe and describe neutralization reactions. Copy: Neutralization is when an acid and base react to product a salt and water. e.g. HCl + NaOH NaCl + H 2 O acid base salt water
More informationLab Activity 3: Factors Affecting Reaction Rate
Chemistry 3202 Lab #3 factors affecting Reaction Rate Page 1 of 5 Lab Activity 3: Factors Affecting Reaction Rate Introduction Several factors influence how fast a reaction proceeds. In this activity,
More informationStudy Guide: Stoichiometry
Name: Study Guide: Stoichiometry Period: **YOUR ANSWERS MUST INCLUDE THE PROPER NUMBER OF SIG FIGS AND COMPLETE UNITS IN ORDER TO RECEIVE CREDIT FOR THE PROBLEM.** BALANCE THE FOLLOWING EQUATIONS TO USE
More informationPlease take a seat in Row Seat according to the following map
ABCDEG Name Practice Chem 105X Fall 2009 Keller Hour Exam 2 Chap 3 &4 Kotz Please take a seat in Row_ Seat_ according to the following map Please: Keep this booklet closed until instructed to open it.
More informationExperiment #7. Chemical Reactions.
Experiment #7. Chemical Reactions. Goals To observe chemical reactions and balance chemical equations. Background Chemical and Physical Changes Changes in matter are often classified as either physical
More informationPercentage of Acetic Acid in Vinegar
Microscale Percentage of Acetic Acid in Vinegar When sweet apple cider is fermented in the absence of oxygen, the product is an acid, vinegar. Most commercial vinegars are made by fermentation, but some,
More informationCHM101 Lab Chemical Reactions Grading Rubric
Name Team Name CHM101 Lab Chemical Reactions Grading Rubric To participate in this lab you must have splash- proof goggles, proper shoes and attire. Criteria Points possible Points earned Lab Performance
More informationC2.6 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
More informationC2.6 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
More informationLearning Objectives Progress Tracker Test Date: 6.1 Stoichiometry balanced chemical equation mole ratios theoretical yield limiting reagent
Unit 6 Stoichiometry Progress Tracker Learning Objectives 6.1 Stoichiometry Test Date: Webassign Due Score 6.1 Stoichiometry Packet Progress Checks Test Readiness Checks: My webassign scores indicate I
More information1.24 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
More informationChemical Reactions: Introduction to Reaction Types
Chemical Reactions: Introduction to Reaction Types **Lab Notebook** Record observations for all of the chemical reactions carried out during the lab in your lab book. These observations should include:
More informationJHS Regents Chemistry Department Rates of Chemical Reactions Inquiry Investigation
Name: Date: Partner: Period: JHS Regents Chemistry Department Rates of Chemical Reactions Inquiry Investigation Introduction: According to the collision theory, the rate of a reaction depends on the frequency
More informationRevision 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
More informationLab 2-Investigating the Law of Conservation of Mass
Name: Period: Lab 2-Investigating the Law of Conservation of Mass Objective: To corroborate the law of conservation of mass through laboratory experimentation. Background: When wood burns or water evaporates,
More informationChemistry 11 Unit 1:Stoichiometry 10/30/2016 /20
Lab #6 Reaction of a Metal with Hydrochloric Acid THE AIM OF THIS EXPERIMENT: Name: Partners: In this experiment, you will react hydrochloric acid with magnesium to produce H 2 gas, and to determine the
More informationFigure 1. Oxygen. (g) +... (g)... SO 3. The pressure of the reacting gases was increased.
Q1. Figure 1 represents a reaction in the production of sulfuric acid. Figure 1 Oxygen Sulfur dioxide Sulfur trioxide (a) Complete and balance the equation for the reaction.... SO 2 (g) +... (g)... SO
More informationChemical Reaction Defn: Chemical Reaction: when starting chemical species form different chemicals.
Chemistry 11 Notes on Chemical Reactions Chemical Reaction Defn: Chemical Reaction: when starting chemical species form different chemicals. Evidence to indicate that a chemical reaction has occurred:
More informationStoichiometry 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
More informationName. Practice Test 2 Chemistry 111
Name Practice Test 2 Chemistry 111 1) In the aqueous reaction of K 2 SO 4 (aq) + Ba(NO 3 ) 2 (aq) BaSO 4 (s) + 2KNO 3 (aq), which ions are the spectator ions? A) Ba 2+ 2- and SO 4 B) Ba 2+ and K + C) Ba
More informationHESS S LAW: ADDITIVITY OF HEATS OF REACTION
HESS S LAW: ADDITIVITY OF HEATS OF REACTION From Chemistry with Calculators, Vernier Software & Technology In this experiment, you will use a Styrofoam-cup calorimeter to measure the heat released by three
More information(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
More informationThe 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
More informationUNIT 6338: SAMPLE ACTIVITY 28 SAMPLE ASSESSMENT ACTIVITIES AND SCHEDULES PROTON TRANSFERS
UNIT 6338: SAMPLE ACTIVITY 28 SAMPLE ASSESSMENT ACTIVITIES AND SCHEDULES 6.129 6338 CHEMISTRY LEVEL 2 PROTON TRANSFERS This activity assesses: Unit: 6338 Characterise the behaviour of weak and strong acids
More informationIGCSE (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
More informationLab 16: Metals and Oxidation
Concepts to explore: Observe an oxidation reduction reaction Use the properties of a reaction product to verify its identity Rank the reactivity of certain metals in a weak acid, and compare it to their
More informationUNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Subsidiary Level and Advanced Level
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Subsidiary Level and Advanced Level *4827396477* CHEMISTRY 9701/35 Advanced Practical Skills October/November
More informationGraspIT 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)
More informationPSI Chemistry. Table spoons, disposable weighing dishes, scale, pencil and instruction hand out.
Chemistry Honors Lab PSI Chemistry Names Measuring Mass As A Means Of Counting - Chemical quantities- Mole and Particles Purpose To determine the mass of given chemicals and use the data to count atoms.
More informationUNIT 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
More informationTRATION: ANALYSIS OF VINE
Experiment 10 Name: 22 Ti TRATION: ANALYSIS OF VINE 31 Ga R In this experiment, you will learn the concept and technique of titration. You will determine the concentration of acetic acid in commercial
More informationAcids and Bases. Figure 1
DataQuest 9 Organisms are often very sensitive to the effect of s and s in their environment. They need to maintain a stable internal ph in order to survive even in the event of environmental changes.
More informationName Period Date. Lab 9: Analysis of Commercial Bleach
Name Period Date Lab 9: Analysis of Commercial Bleach Introduction Many common products are effective because they contain oxidizing agents. Some products, which contain oxidizing agents, are bleaches,
More information4-3 Quantitative chemistry Chemistry
4-3 Quantitative chemistry Chemistry.0 This question is about carbonates.. Sodium carbonate, Na 2CO 3, is used as a water softener. Give the number of atoms of each type in sodium carbonate. [3 marks]
More informationSTUDYING CHEMICAL REACTIONS BY TITRATION ANALYSIS
STUDYING CHEMICAL REACTIONS BY TITRATION ANALYSIS OBJECTIVES: Study the relationship of reactants & products in solution phase chemical reactions, Learn how to prepare solutions from solid and liquid stock,
More informationTHE LAWS LAB LAW OF CONSERVATION OF MASS, LAW OF DEFINITE PROPORTIONS, LAW OF MULTIPLE PROPORTIONS
THE LAWS LAB LAW OF CONSERVATION OF MASS, LAW OF DEFINITE PROPORTIONS, LAW OF MULTIPLE PROPORTIONS PRELAB Please answer the following questions on a separate piece of paper using complete sentences. 1.
More informationchemrevise.org 22/08/2013 Titrations N Goalby Chemrevise.org Titrations
Titrations N Goalby Chemrevise.org Titrations Titrations are done often to find out the concentration of one substance by reacting it with another substance of known concentration. They are often done
More informationClassifying Chemical Reactions
1 Classifying Chemical Reactions Analyzing and Predicting Products Introduction The power of chemical reactions to transform our lives is visible all around us-in our cars, even in our bodies. Chemists
More information8 Titration of Acids and bases
8 Titration of Acids and bases Name: Date: Section: Objectives Reinforce acid-base chemistry principles from chapter 4 in Silberberg Standardize a sodium hydroxide solution Determine the molarity of an
More informationChemical Background Information: Magnesium reacts with oxygen in air to for magnesium oxide, according to equation 1.
HESS S LAW LAB Pre lab assignment: You will need to complete the following parts prior to doing the lab: Title, Purpose, and Storyboard of the procedures for each part, Blank Data tables, and the Prelab
More informationCOEFFICIENTS. - Experimentally, we can usually determine the reactants and products of a reaction
81 COEFFICIENTS - Experimentally, we can usually determine the reactants and products of a reaction - We can determine the proper ratios of reactants and products WITHOUT further experiments, using a process
More informationName: Class: Date: ID: A. (g), what is the ratio of moles of oxygen used to moles of CO 2 produced? a. 1:1 b. 2:1 c. 1:2 d. 2:2
Name: Class: _ Date: _ Chpt 12 review Multiple Choice Identify the choice that best completes the statement or answers the question. 1. What is conserved in the reaction shown below? H 2 + Cl 2 2HCl a.
More information