Concept explainers
(a)
Interpretation: Carbonated soft drink needs to be identified as mixture or pure substance.
Concept Introduction: Practically all of the matter in environment consists of mixtures of different substance. For example, soil; it has many forms of components, air; it has mixture of many gases, etc.
(a)
Answer to Problem 4RQ
Carbonated soft drink is a mixture.
Explanation of Solution
Substance is made up of the similar types of the atoms. A sample of matter with both definite & constant composition and also distinct chemical properties called a pure substance. A mixture is the combination of similar or dissimilar components. The property of mixture depends on the components present in a mixture.
Carbonated soft drink is usually solutions of various substances dissolved in the water. In Carbonated soft drink, the components can be separated by many different physical methods (filtration, evaporation). Since, the amount of each of these can vary (flavoring, sugar, carbonation, color), it’s a mixture.
(b)
Interpretation: Table salt (sodium chloride) needs to be identified as mixture or pure substance.
Concept Introduction: Practically all of the matter in environment consists of mixtures of different substance. For example, soil; it has many forms of components, air; it has mixture of many gases, etc.
(b)
Answer to Problem 4RQ
Table salt (sodium chloride) is a mixture.
Explanation of Solution
Substance is made up of the similar types of the atoms. A sample of matter with both definite & constant composition and also distinct chemical properties called a pure substance. A mixture is the combination of similar or dissimilar components. The property of mixture depends on the components present in a mixture.
Sodium chloride contains sodium and chlorine that can be physically separated into its components. So, Sodium chloride is a mixture.
(c)
Interpretation: Vanilla pudding needs to be identified as mixture or pure substance.
Concept Introduction: Practically all of the matter in environment consists of mixtures of different substance. For example, soil; it has many forms of components, air; it has mixture of many gases, etc.
(c)
Answer to Problem 4RQ
Vanilla pudding is a mixture.
Explanation of Solution
Substance is made up of the similar types of the atoms. A sample of matter with both definite & constant composition and also distinct chemical properties called a pure substance. A mixture is the combination of similar or dissimilar components. The property of mixture depends on the components present in a mixture.
Vanilla pudding is a combination of similar or dissimilar components such as sugar, cornstarch, and also artificial flavorings & coloring. So, vanilla pudding is a mixture.
(d)
Interpretation: A penny needs to be identified as mixture or pure substance.
Concept Introduction: Practically all of the matter in environment consists of mixtures of different substance. For example, soil; it has many forms of components, air; it has mixture of many gases, etc.
(d)
Answer to Problem 4RQ
Penny is a mixture.
Explanation of Solution
Substance is made up of the similar types of the atoms. A sample of matter with both definite & constant composition and also distinct chemical properties called a pure substance. A mixture is the combination of similar or dissimilar components. The property of mixture depends on the components present in a mixture.
A penny contains zinc and copper that can be physically separated into its components. So, penny is a mixture.
(e)
Interpretation: Ink from a pen needs to be identified as mixture or pure substance.
Concept Introduction: Practically all of the matter in environment consists of mixtures of different substance. For example, soil; it has many forms of components, air; it has mixture of many gases, etc.
(e)
Answer to Problem 4RQ
Ink from a pen is a mixture.
Explanation of Solution
Substance is made up of the similar types of the atoms. A sample of matter with both definite & constant composition and also distinct chemical properties called a pure substance. A mixture is the combination of similar or dissimilar components. The property of mixture depends on the components present in a mixture.
Ink from a pen contains water and dyes that can be physically separated into its components. So, ink from a pen is a mixture with water, solvent, in its pure state.
(f)
Interpretation: 24-karat gold needs to be identified as mixture or pure substance.
Concept Introduction: Practically all of the matter in environment consists of mixtures of different substance. For example, soil; it has many forms of components, air; it has mixture of many gases, etc.
(f)
Answer to Problem 4RQ
24-karat goldis a pure substance.
Explanation of Solution
Substance is made up of the similar types of the atoms. A sample of matter with both definite & constant composition and also distinct chemical properties called a pure substance. A mixture is the combination of similar or dissimilar components. The property of mixture depends on the components present in a mixture.
24-karat gold does not contain traces of any other metals. So, 24-karat gold is a pure substance.
Chapter 2 Solutions
World of Chemistry
- Identify the Functional Groups (FG) in the following molecules. Classify C atoms as tertiary, 30, or quaternary 40. Identify secondary 20 and tertiary, 30 hydrogen atoms. Please provide steps to undertand each labeling.arrow_forwardIdentify the Functional Groups (FG) in the following molecules. Classify C atoms as tertiary, 30, or quaternary 40. Identify secondary 20 and tertiary, 30 hydrogen atoms. Please provide steps to undertand each labeling.arrow_forwardIdentify the Functional Groups (FG) in the following molecules. Classify C atoms as tertiary, 30, or quaternary 40. Identify secondary 20 and tertiary, 30 hydrogen atoms. Please provide steps to undertand each labeling.arrow_forward
- Identify the Functional Groups (FG) in the following molecules. Classify C atoms as tertiary, 30, or quaternary 40. Identify secondary 20 and tertiary, 30 hydrogen atoms. Please provide steps to undertand each labeling.arrow_forwardA certain chemical reaction releases 24.7 kJ/g of heat for each gram of reactant consumed. How can you calculate what mass of reactant will produce 1460. J of heat? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols. mass M 0.0 x μ 00 1 Garrow_forwardPlease don't used hand raiting and don't used Ai solutionarrow_forward
- the vibrational frequency of I2 is 214.5 cm-1. (i) Using the harmonic oscillator model, evaluate the vibrational partition function and the mean vibrational energy of I2 at 1000K. (ii) What is the characteristic vibrational temperature of I2? (iii) At 1000K, assuming high-temperature approximation, evaluate the vibrational partition function and the mean vibrational energy of I2. (iv) Comparing (i) and (iii), is the high-temperature approximation good for I2 at 1000K?arrow_forwardPlease correct answer and don't used hand raitingarrow_forwardconsider a weak monoprotic acid that is 32 deprotonated at ph 4.00 what is the pka of the weak acidarrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY