# Saturated and Unsaturated Solutions

Save this PDF as:

Size: px
Start display at page:

## Transcription

1 Why? Saturated and Unsaturated Solutions Is there a limit to the amount of solute that will dissolve in a solvent? We use solutions every day. People who wear contact lenses use lens solution to rinse their contacts and keep them wet. Athletes who consume sports drinks after exercising benefit from the electrolytes in those solutions. This activity will explore whether or not there is a limit to how much of one substance can dissolve in another. Model 1 Saturated and Unsaturated Solutions Unsaturated Solutions All beakers contain 10.0 g of water. All beakers are kept at 20 C. All solutions are stirred for 2 hours. Solute is the same substance in all beakers. Beaker A Beaker B 1.0 g of solute added 2.0 g of solute added Number of dissolved particles 5 Number of solid particles 0 Saturated Solutions Beaker C Beaker D Beaker E 3.6 g of solute added 7.0 g of solute added g of solute added 18 Saturated and Unsaturated Solutions 1

2 1. Which illustration below represents a. solute particles in a solid state in water? b. solute particles in an aqueous state? 2. What variables are controlled in all five beakers of Model 1? 3. Count the particles present in each beaker of Model 1. Fill in the table to show the number of dissolved solute particles and the number of solid solute particles. 4. Consider the beakers in Model 1. a. Which beakers represent unsaturated solutions? b. Which beakers represent saturated solutions? 5. Beakers A E in Model 1 are depicted as representing five different or separate solutions. They could also be considered as five snapshots of the same beaker over time. In other words, if additional measured quantities of solute were stirred into beaker A in small increments over time, then beakers B E would result. a. When a small amount of additional solute is added to an unsaturated solution, what happens to the number of dissolved particles? Provide specific evidence from Model 1 to support your answer. b. When a small amount of additional solute is added to a saturated solution, what happens to the number of dissolved particles? Provide specific evidence from Model 1 to support your answer. c. Predict what would happen if a small amount of additional solute were stirred into beaker E in Model 1. 2 POGIL Activities for High School Chemistry

3 6. Have each person in your group provide an example of the word saturated as it is used in an everyday context. Summarize the meaning of the word in the space below. 7. Use a grammatically correct sentence to explain why beakers D and E in Model 1 are labeled as saturated. Be sure to incorporate the words solute and solvent in your explanation, and reach a consensus within your group. 8. What feature in the beakers in Model 1 would typically enable a student to distinguish a saturated solution from an unsaturated one simply by looking at the beaker? 9. Beaker C in Model 1 is shown as saturated. Explain why this is the correct category for beaker C even though the typical feature listed in Question 8 is not present. 10. If you were handed a beaker containing a clear solution (with no solid solute at the bottom), and asked to identify it as saturated or unsaturated, what simple test could you perform to determine the answer. Saturated and Unsaturated Solutions 3

4 Model 2 Solute Dissolved vs. Solute Added The following data refer to an experiment in which a measured mass of solid is added to 10.0 g of 20 C water. The mixture is stirred and allowed to sit for 3 hours. Ten separate trials are conducted for the experiment. Trial Number Mass of solute added (grams) Mass of solute dissolved (grams) Four of the trials in Model 2 correspond to beakers A, B, D, and E from Model 1. Write the letters for those beakers next to the corresponding trial numbers in Model Identify the following variables in the experiment in Model 2. Dependent variable Independent variable Controlled variable(s) 13. Sketch a graph of the data for the experiment in Model 2. A space has been provided next to the data table. Be sure to consider which variable belongs on each axis. 14. Consider the data in Model 2. a. Which trials represent solutions that are unsaturated? b. Which trial numbers represent solutions that are saturated? c. Describe the feature in the graph that can help you identify the saturated solutions. Explain. 4 POGIL Activities for High School Chemistry

5 15. Which trials in the experiment in Model 2 would have visible amounts of solid on the bottom of the beaker? 16. For Trial 8 in Model 2, determine the mass of solid solute remaining on the bottom of the beaker. Show your calculation. 17. Imagine that the contents of the beaker for Trial 8 in Model 2 are vigorously stirred and then poured into filter paper in a funnel. a. Is the liquid that drips from the filter (the filtrate) unsaturated or saturated? Explain. b. Which beaker in Model 1 best represents the filtrate that would be obtained? Saturated and Unsaturated Solutions 5

6 Extension Questions 18. Predict what would happen to the mass of solid solute sitting on the bottom of the beaker in Trial 8 in Model 2 when the following changes occur. Use complete sentences to support your predictions. a. More water is added to the beaker. b. The beaker is heated. c. The beaker is allowed to sit uncovered for two days and some water evaporates. 6 POGIL Activities for High School Chemistry

### Name: A Particle View of Solutions

Name: A Particle View of Solutions 1 Investigating Homogeneous Mixtures Do Now: Using your glossary, define the following terms: Homogeneous Mixture Solution Solvent Solute Solute Components of a Solution

### Calorimetry. What is the relationship between heat energy and temperature? 4 qt. saucepan 8 qt. stockpot

Why? Calorimetry What is the relationship between heat energy and temperature? When a substance is heated, the temperature of that substance increases. Will the same amount of energy cause different substances

### Virtual Solution Lab::

Name A Solution is a type of homogeneous mixture formed when one substance dissolves in another. The particles of the mixing substances are evenly spread throughout. The substance that is dissolved is

### The Solution to Solutions. Chemistry 2008

The Solution to Solutions Chemistry 2008 Content Objectives Chemistry swbat define various terms associated with solutions by viewing a PowerPoint and filling in cloze style notes. Chemistry students wbat

### Minneapolis Community and Technical College. Separation of Components of a Mixture

Minneapolis Community and Technical College Chemistry Department Chem1020 Separation of Components of a Mixture Objectives: To separate a mixture into its component pure substances. To calculate the composition

### 7-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

### Moles 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

### CHAPTER 12 REVIEW. Solutions. Answer the following questions in the space provided. b. sea water. c. water-absorbing super gels

CHAPTER 12 REVIEW Solutions SECTION 1 SHORT ANSWER Answer the following questions in the space provided. 1. Match the type of mixture on the left to its representative particle diameter on the right. c

### Molarity. How can the concentration of a solution be expressed quantitatively? Lemonade Solution 1 Lemonade Solution 2

Why? Molarity How can the concentration of a solution be expressed quantitatively? When you buy a bottle of a certain brand of lemonade you expect it to taste just as sweet as the last time you bought

### Separating Mixtures. Name: Class:

Separating Mixtures Name: Class: Directions: Match the words with the big ideas by writing the letter beside the idea. Use the same words in the short article below. Use key words and phrases from the

### Unit 4. Compounds & Mixtures

Unit 4 Compounds & Mixtures Homework for Unit 4 1. Vocab for Unit 4; due: 2. Pg 81 (1-7), Pg 83 (1-7), Pg 85 (1-6) complete sentences; due: 3. Pg 149 (1-4), Pg 169 (1-4), Pg 173 (1-7) complete sentences;

### General Chemistry I CHEM-1030 Laboratory Experiment No. 2 Physical Separation Techniques

General Chemistry I CHEM-1030 Laboratory Experiment No. 2 Physical Separation Techniques Introduction When two or more substances that do not react chemically are blended together, the components of the

### Essential Knowledge #1

Essential Knowledge #1 It is essential for students to analyze and interpret data demonstrating that matter is anything that has mass and volume. All matter is made up of very small particles too small

### Experiment 15 - Heat of Fusion and Heat of Solution

Experiment 15 - Heat of Fusion and Heat of Solution Phase changes and dissolving are physical processes that involve heat. In this experiment, you will determine the heat of fusion of ice (the energy required

### Eye on Ions: Electrical Conductivity of Aqueous Solutions

Eye on Ions: Electrical Conductivity of Aqueous Solutions Pre-lab Assignment: Reading: 1. Chapter sections 4.1, 4.3, 4.5 and 4.6 in your course text. 2. This lab handout. Questions: 1. Using table 1 in

### Mixtures and Solutions: The Sugar in the Tea by Emily Sohn and Joseph Brennan

Readers Mixtures and Solutions: The Sugar in the Tea by Emily Sohn and Joseph Brennan Science Objective This book introduces children to some basics of chemistry as they explore the atoms and molecules

### MIXTURES, COMPOUNDS, & SOLUTIONS

MIXTURES, COMPOUNDS, & SOLUTIONS As with elements, few compounds are found pure in nature and usually found as mixtures with other compounds. A mixture is a combination of two or more substances that are

### The Hand Warmer Design Challenge: Where Does the Heat Come From?

The Hand Warmer Design Challenge: Where Does the Heat Come From? LSNED Learn Something New Every Day About Sharing and Contributions Interesting Facts Science In Your Mittens: The Chemistry Of Hand Warmers

### EXPERIMENT 22 SOLUBILITY OF A SLIGHTLY SOLUBLE ELECTROLYTE

EXPERIMENT 22 SOLUBILITY OF A SLIGHTLY SOLUBLE ELECTROLYTE INTRODUCTION Electrolytes are compounds that are present in solution as ions. They are more likely to be soluble in water than in most other liquids

### Lesson 3 Mixtures and Solutions

Lesson 3 Mixtures and Solutions Who This lesson is designed for fifth graders ranging in age from nine to eleven. What This lesson is part of the Physical Science Unit of Instruction and based on California

### Chapter 13 (part I of II)Properties of Solutions (N.B. aspects of this topic were seen in chapter 4)

Chemistry, The Central Science, 10th edition, AP version Theodore L. Brown; H. Eugene LeMay, Jr.; and Bruce E. Bursten Chapter 13 (part I of II)Properties of (N.B. aspects of this topic were seen in chapter

### Cambridge International Examinations Cambridge International General Certifi cate of Secondary Education

www.xtremepapers.com Cambridge International Examinations Cambridge International General Certifi cate of Secondary Education *326217* CHEMISTRY 0620/63 Paper 6 Alternative to Practical October/November

### Chemistry 151 Last Updated Dec Lab 8: Precipitation Reactions and Limiting Reagents

Chemistry 151 Last Updated Dec. 2013 Lab 8: Precipitation Reactions and Limiting Reagents Introduction In this lab you will perform a simple precipitation reaction between strontium nitrate and potassium

### Evaluation copy. The Molar Mass of a Volatile Liquid. computer OBJECTIVES MATERIALS

The Molar Mass of a Volatile Liquid Computer 3 One of the properties that helps characterize a substance is its molar mass. If the substance in question is a volatile liquid, a common method to determine

### Skill Building Activity 2 Determining the Concentration of a Species using a Vernier Spectrometer

Skill Building Activity 2 Determining the Concentration of a Species using a Vernier Spectrometer Purpose To use spectroscopy to prepare a Beer s Law plot of known dilutions of copper(ii) sulfate so that

### PROPERTIES OF MIXTURES. A mixture is a combination of two or more substances that are not chemically combined

MIXTURES PROPERTIES OF MIXTURES A mixture is a combination of two or more substances that are not chemically combined PROPERTIES OF MIXTURES No Chemical Changes in a Mixture No chemical changes happen

### Solutions and solubility - Grade 11

OpenStax-CNX module: m35865 1 Solutions and solubility - Grade 11 Rory Adams Free High School Science Texts Project Heather Williams This work is produced by OpenStax-CNX and licensed under the Creative

### Experiment Two Laboratory Balance: Mass Calculations

Name: Lab Section: Experiment Two Laboratory Balance: Mass Calculations Objective The balance is used almost every day in the chemistry lab, understanding the proper use and care for the balance is essential

### Experiment 7A ANALYSIS OF BRASS

Experiment 7A ANALYSIS OF BRASS FV 10/21/10 MATERIALS: Spectronic 20 spectrophotometers, 2 cuvettes, brass sample, 7 M HNO 3, 0.100 M CuSO 4, 2 M NH 3, two 50 ml beakers, 100 ml beaker, two 25 ml volumetric

### Station 1 Water is a polar molecule and has a very unique structure

Station 1 Water is a polar molecule and has a very unique structure A water molecule, because of its shape, is a polar molecule. That is, it has one side that is positively charged and one side that is

### GRIGNARD REACTION Synthesis of Benzoic Acid

1 GRIGNARD REACTION Synthesis of Benzoic Acid In the 1920 s, the first survey of the acceleration of chemical transformations by ultrasound was published. Since then, many more applications of ultrasound

### Foundations of Chemistry

Foundations of Chemistry Physical Properties Physical Properties As you read in Lesson 1, the arrangement of atoms determines whether matter is a substance or a mixture. The arrangement of atoms also determines

### Notes for: How Can You Describe Matter, Mixtures, and Solutions? A. Matter is anything that has mass and takes up space

Notes for: How Can You Describe Matter, Mixtures, and Solutions? I. Properties of Matter A. Matter is anything that has mass and takes up space 1. scientists describe and compare matter based on properties,

### Bellevue College CHEM& 121 Experiment: Stoichiometric Analysis of an Antacid 1

Experiment: Stoichiometric Analysis of an Antacid 1 Introduction In this lab, you will use the concept of stoichiometry to solve two sequential problems. First, you will try to determine the products of

### Saturday Science Lesson Plan Fall 2008

Saturday Science Lesson Plan Fall 2008 LEARNING OBJECTIVES STANDARDS 1.1.1 Observe, describe, draw, and sort objects carefully to learn about them. 1.2.6 Describe and compare objects in terms of number,

### However, what kind of correlation actually exists between the temperature of a solution and the

Ding 1 Chunyang Ding Mr. Rierson AP/IB Chemistry SL 16 December 2012 Through most chemical experiments, the variable that is most associated with being controlled is temperature. This makes sense in many

### Determining 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

### Nucleophilic Addition to Carbonyl: Grignard Reaction with a Ketone

Experiment 7 Nucleophilic Addition to Carbonyl: Grignard eaction with a Ketone prepared by Jan William Simek, California Polytechnic State University modified by Hyunwoo Kim, Sunkyu Han and Eunyoung Yoon,

### Freezing Point Depression: Can oceans freeze? Teacher Advanced Version

Freezing Point Depression: Can oceans freeze? Teacher Advanced Version Freezing point depression describes the process where the temperature at which a liquid freezes is lowered by adding another compound.

### Chapter 5, Lesson 5 Using Dissolving to Identify an Unknown

Chapter 5, Lesson 5 Using Dissolving to Identify an Unknown Key Concepts Different substances are made from different atoms, ions, or molecules, which interact with water in different ways. Since dissolving

### TITRATION: STANDARDIZATION OF A BASE AND ANALYSIS OF STOMACH ANTACID TABLETS. Teacher Notes

TITRATION: STANDARDIZATION OF A BASE AND ANALYSIS OF STOMACH ANTACID TABLETS Teacher Notes This experiment is designed for students working singly or in groups of two. The overall purpose of this experiment

### Expt 9: The Aldol Condensation

Expt 9: The Aldol Condensation INTRDUCTIN Reactions that form carbon-carbon bonds are particularly important in organic chemistry as they allow the synthesis of more complex structures from simpler molecules.

Question 1: What is meant by a pure substance? A pure substance is the one that consists of a single type of particles, i.e., all constituent particles of the substance have the same chemical nature. Pure

### ESSENTIAL EXPERIMENTS CHEMISTRY

ESSENTIAL EXPERIMENTS for CHEMISTRY Morrison Scodellaro Sample Experiment Freezing Point Depression For additional information email: smg_order@smglabbooks.com Fax: 1-800-201-4587 Phone: 1-800-201-4587

### Density of Aqueous Sodium Chloride Solutions

Experiment 3 Density of Aqueous Sodium Chloride Solutions Prepared by Ross S. Nord and Stephen E. Schullery, Eastern Michigan University PURPOSE Determine the concentration of an unknown sodium chloride

### MATTER. Chemistry is the study of matter and the changes that matter undergoes. Matter is anything that has mass and takes up space.

MATTER Chemistry is the study of matter and the changes that matter undergoes. Matter is anything that has mass and takes up space. Properties of Matter Physical Properties Can be observed without changing

### LAB #6 Chromatography Techniques

LAB #6 Chromatography Techniques Objectives: To learn how to story board a procedure Explain how a chromatograph of pigments is formed from both paper and thin layer chromatography. Isolate and identify

### Grade 5 Mixtures and Solutions Unit Template

Delaware Science Coalition Grade 5 Mixtures and Solutions Unit Template Copyright 2008 Delaware Department of Education Copyright 2008 Delaware Department of Education 1 Preface: This unit has been created

### THIN LAYER CHROMATOGRAPHY

THIN LAYER CHROMATOGRAPHY OBJECTIVE In this laboratory you will separate spinach pigments using thin layer chromatography (TLC). INTRODUCTION Mixtures of compounds are very common in Organic Chemistry.

### Standardizing a Solution of Sodium Hydroxide. Evaluation copy

Standardizing a Solution of Sodium Hydroxide Computer 6 It is often necessary to test a solution of unknown concentration with a solution of a known, precise concentration. The process of determining the

### 1. As the number of effective collisions between reacting particles increases, the rate of reaction (1) decreases (3) remains the same (2) increases

1. As the number of effective collisions between reacting particles increases, the rate of reaction (1) decreases (3) remains the same (2) increases 2. The energy needed to start a chemical reaction is

### What Do You Think? Investigate GOALS

Activity 3 Atoms and Their Masses GOALS In this activity you will: Explore the idea of atoms by trying to isolate a single atom. Measure how many times greater the mass of a copper atom is than a magnesium

### TEKS CHEMISTRY CHEMISTRY 2007

CHEMISTRY Correlated to CHEMISTRY 2007 5910 Rice Creek Parkway, Suite 1000 Shoreview, Minnesota 55126 Telephone (800) 328-2560 www.agsglobe.com Materials included in this Texas/AGS Globe correlation: STUDENT

### A STUDY OF REACTION RATES

CH095 A Study of Reaction Rates Page 1 A STUDY OF REACTION RATES Chemical reaction rates are affected by changes in concentration of the reactants and temperature. How concentration and temperature affect

### Unit 5 Part 2 Acids, Bases and Salts Titrations, Indicators and the ph Scale UNIT 5 ACIDS, BASES AND SALTS

UNIT 5 ACIDS, BASES AND SALTS PART 2 TITRATIONS, INDICATORS AND THE PH SCALE Contents 1. The ph scale 2. Indicators 3. Acid-Base Titrations Key words: acidic, alkaline, neutral, ph, indicator, litmus,

### NATIONAL SENIOR CERTIFICATE GRADE 10

NATIONAL SENIOR CERTIFICATE GRADE 10 PHYSICAL SCIENCES: CONTROLLED TEST 2 23 SEPTEMBER 2015 NAME OF SCHOOL: MARKS: 100 DURATION: 2 HOURS This question paper consists of 11 pages, including the cover page

### 5 th GRADE PHYSICAL AND CHEMICAL TESTS

5 th GRADE PHYSICAL AND CHEMICAL TESTS Summary: Students investigate 5 unknown white powders. They gather clues by observing the physical and chemical changes of the powders. At the end of the activity,

### H 2 O WHAT PROPERTIES OF WATER MAKE IT ESSENTIAL TO LIFE OF EARTH? Good solvent High Surface tension Low vapor pressure High boiling point

Unit 9: Solutions H 2 O WHAT PROPERTIES OF WATER MAKE IT ESSENTIAL TO LIFE OF EARTH? Good solvent High Surface tension Low vapor pressure High boiling point Water is a polar molecule. It experiences hydrogen

### Flushing Out the Moles in Lab: The Reaction of Calcium Chloride with Carbonate Salts

Flushing Out the Moles in Lab: The Reaction of Calcium Chloride with Carbonate Salts Pre-lab Assignment: Reading: 1. Chapter sections 3.3, 3.4, 3.7 and 4.2 in your course text. 2. This lab handout. Questions:

### PHYSICS AND CHEMISTRY 3 rd ESO NAME:..

ELEMENTS, COMPOUNDS AND MIXTURES December, 11 th 2 marks 1. a) The list below contains three elements and three compounds. Say which are elements and which are compounds. Iodine (I 2 ) Water (H 2 O) Fluorine

### Rate of Reaction. Introduction

5 Rate of Reaction Introduction This experiment will allow you to study the effects of concentration, temperature, and catalysts on a reaction rate. The reaction whose rate you will study is the oxidation

### Conductimetric Titration and Gravimetric Determination of a Precipitate

Conductimetric Titration and Gravimetric Determination of a Precipitate LabQuest 16 In this experiment, you will monitor conductivity during the reaction between sulfuric acid, H 2 SO 4, and barium hydroxide,

### Experiment 13H THE REACTION OF RED FOOD COLOR WITH BLEACH 1

Experiment 13H 08/03/2017 AHRM THE REACTION OF RED FOOD COLOR WITH BLEACH 1 PROBLEM: Determine the rate law for the chemical reaction between FD&C Red Dye #3 and sodium hypochlorite. LEARNING OBJECTIVES:

### Lab: Detecting ph of Commonly Used Acids and Bases

Lab: Detecting ph of Commonly Used Acids and Bases FOR THE TEACHER Summary In this lab, students will use their knowledge of acids and bases to determine the acidity and basicity of every day items by

### 2014 NJIT RET Program. MODULE TOPIC: Two Methods of Determining the Concentration of Soluble Compounds or Analytes..

NJIT RET Summer program 2014 Lesson Module 2014 NJIT RET Program MODULE TOPIC: Two Methods of Determining the Concentration of Soluble Compounds or Analytes.. LESSON ONE TOPIC: Colorimetric Analysis of

### Experiment: Synthesis of Aspirin

Experiment: Synthesis of Aspirin Background Aspirin, which ranks as the most widely used drug in the United States, is one of a series of salicylic acid esters that has been known since antiquity to have

### A Study of Beer s Law Prelab

1. What is the purpose of this experiment? A Study of Beer s Law Prelab 2. Using the absorbance versus wavelength curve given in Figure I, determine the approximate value of max of the dye used to construct

### Name Class Date. Use the terms from the following list to complete the sentences below. Each term may be used only once. Some terms may not be used.

Assessment Chapter Test B Elements, Compounds, and Mixtures USING KEY TERMS Use the terms from the following list to complete the sentences below. Each term may be used only once. Some terms may not be

### 3. When the external pressure is kpa torr, water will boil at what temperature? a C b C c. 100 C d. 18 C

Chemistry EOC Review 5: Physical Behavior of Matter 1. Which gas is monatomic at STP? a. chlorine b. fluorine c. neon d. nitrogen 2. What Kelvin temperature is equal to 25 C? a. 248 K b. 298 K c. 100 K

### Synthesis of cis- and trans- Diamminedichloroplatinum(II)

4 EXPERIMENT Synthesis of cis- and trans- Diamminedichloroplatinum(II) REFERENCES a. Singh, M. M.; Szafran, Z.; Pike, R. M. The Microscale Laboratory, J. Chem. Educ. 1990, 67, A261-A262. b. Szafran, Z.;

### NSF Research Experiences for Teachers RET

NSF Research Experiences for Teachers RET Subject Grade Levels Crystallization H.S. Chemistry Essential Question *How do crystals grow? *How can we find the factors which affect the growth of the crystal?

### Separating the Mixture

Separating the Mixture 40- to 1 50-minute session ACTIVITY OVERVIEW I N V E S T 5 I O N I G AT Students perform their procedures written in Activity 3, A Plan to Separate the Mixture, to physically separate

### Experiment 8 - Chemical Changes

Experiment 8 - Chemical Changes When a chemical change occurs, the chemicals that you start with are changed into different chemicals. We know when this happens because the new chemicals have different

### Sample Free-Response Questions

Exam Information Sample Free-Response Questions Question 1 is a long constructed-response question that should require about 20 minutes to answer. Questions 2, 3, and 4 are short constructed-response questions

### Conductometric Titration & Gravimetric Determination of a Precipitate

Conductometric Titration & Gravimetric Determination of a Precipitate Experiment 9 In this experiment, you will monitor conductivity during the reaction between sulfuric acid, H2SO4, and barium hydroxide,

### 2.1.3 Amount of substance

2.1.3 Amount of substance The mole is the key concept for chemical calculations DEFINITION: The mole is the amount of substance in grams that has the same number of particles as there are atoms in 12 grams

### SIGNIFICANT FIGURES BEGIN

SIGNIFICANT FIGURES BEGIN and someone hands you this. Imagine you are asked to measure the length of something... How do we use it most effectively? Rulers, thermometers, and graduated cylinders, to name

### Solutions. Heterogenous Mixture (Not a Solution) Ice Water (w/ Ice Cubes) Smog Oil and Water

Solutions Unit 6 1 Solutions Homogenous Mixture (Solution) two or more substances mixed together to have a uniform composition, its components are not distinguishable from one another Heterogenous Mixture

### Experiment 11: Dehydration of Cyclohexanol

Experiment 11: Dehydration of yclohexanol INTRODUTION In this experiment, cyclohexanol is dehydrated by aqueous sulfuric acid to produce cyclohexene as the sole product [equation (1)], and no rearrangement

### Review Topic 8: Phases of Matter and Mixtures

Name: Score: 24 / 24 points (100%) Review Topic 8: Phases of Matter and Mixtures Multiple Choice Identify the choice that best completes the statement or answers the question. C 1. Soda water is a solution

### Modern Chemistry Chapter 12- Solutions

Modern Chemistry Chapter 12- Solutions Section 1- Types of Mixtures Solutions are homogeneous mixtures of two or more substances in a single phase. Soluble describes a substance as capable of being dissolved.

### Conductimetric Titration and Gravimetric Determination of a Precipitate

Conductimetric Titration and Gravimetric Determination of a Precipitate Handheld 16 In this experiment, you will monitor conductivity during the reaction between sulfuric acid, H 2 SO 4, and barium hydroxide,

### A SLIPPERY SLIMY SUBSTANCE

A SLIPPERY SLIMY SUBSTANCE PRE LAB DISCUSSION Scientists must use exact language to communicate their observations and ideas to other scientists. Many words have different meanings to different people.

### PREPARATION FOR CHEMISTRY LAB: FLUORIDE IN WATER

1 Name: Lab Instructor: PREPARATION FOR CHEMISTRY LAB: FLUORIDE IN WATER On these problems, the solvent is water and the solution is sufficiently dilute so that the density of the solution is the same

### Experiment 8 Synthesis of Aspirin

Experiment 8 Synthesis of Aspirin Aspirin is an effective analgesic (pain reliever), antipyretic (fever reducer) and anti-inflammatory agent and is one of the most widely used non-prescription drugs. The

### Preparation of Viscous Solutions. Quantitative wet lab; students work in pairs and individually.

Preparation of Viscous Solutions Hazelyn Patterson and Pablo Conde Quantitative wet lab; students work in pairs and individually. Objectives The student will become proficient in calculations involving

### 3. Separation of a Mixture into Pure Substances

3. Separation of a Mixture into Pure Substances Paper Chromatography of Metal Cations What you will accomplish in this experiment This third experiment provides opportunities for you to learn and practice:

### Thermodynamics 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

### Chapter One. Chapter One. Getting Started: Some Key Terms. Chemistry: Matter and Measurement. Key Terms. Key Terms. Key Terms: Properties

1 Getting Started: Some Key Terms 2 Chemistry: Matter and Measurement Chemistry is the study of the composition, structure, and properties of matter and of changes that occur in matter. Matter is anything

### Aspirin Synthesis. Figure 1 Acetylsalicylic acid (aspirin), C 9 H 8 O 4

Aspirin Synthesis Your team of scientists has been hired by the drug research division of Santa Monica Pharmaceuticals, a new start-up company formed by some SM alumni. You have been asked to evaluate

### Heat Capacity of Water A) heat capacity amount of heat required to change a substance s temperature by exactly 1 C

CHEMISTRY Ch. 13 Notes: Water and Its Solutions NOTE: Vocabulary terms are in boldface and underlined. Supporting details are in italics. 13.1 Notes I. Water Molecule Characteristics POLAR molecule (a

### SEPARATION TECHNIQUES

SEPARATION TECHNIQUES If a substance does not dissolve in a solvent, we say that it is insoluble. For example, sand does not dissolve in water it is insoluble. Filtration is a method for separating an

### Experiment 5E BOTTLES WITHOUT LABELS: STUDIES OF CHEMICAL REACTIONS

Experiment 5E BOTTLES WITHOUT LABELS: STUDIES OF CHEMICAL REACTIONS FV 1-21-16 MATERIALS: Eight 50 ml beakers, distilled water bottle, two 250 ml beakers, conductivity meter, ph paper (A/B/N), stirring

### The thermodynamics of the solubility of borax

Chemistry 1 6 3 The thermodynamics of the solubility of borax Purpose: To determine the thermodynamic quantities ΔH and ΔS for the solvation reaction of borax in water by measuring the solubility product

### Conductivity of Electrolytes in Solution

Conductivity of Electrolytes in Solution Introduction: Electrical current can be thought of as the movement of electrons or ionic charges from an area of high potential to an area of low potential. Materials

### ORGANIC SYNTHESIS: MICROWAVE-ASSISTED FISCHER ESTERIFICATION

EXPERIMENT 7 ORGANIC SYNTHESIS: MICROWAVE-ASSISTED FISCHER ESTERIFICATION Materials Needed 1.0-2.0 ml of an alcohol to be chosen from the following: 3-methyl 1-butanol (isoamyl alcohol, isopentyl alcohol),

### CALORIMETRY. m = mass (in grams) of the solution C p = heat capacity (in J/g- C) at constant pressure T = change in temperature in degrees Celsius

CALORIMETRY INTRODUCTION The heat evolved by a chemical reaction can be determined using a calorimeter. The transfer of heat or flow of heat is expressed as the change in Enthalpy of a reaction, H, at