Introductory Chemistry: A Foundation
9th Edition
ISBN: 9781337399425
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 7, Problem 2CR
Interpretation Introduction
Interpretation:
The term
Concept Introduction:
In a chemical reaction, two or more substances react with each other to form other substances. The substances that reacts and substances formed are separated by an arrow while representing a chemical reaction.
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Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
2NH3 (g) = N2 (g) +3H₂
—N2 (g) AGº = 34. kJ
Now suppose a reaction vessel is filled with 4.19 atm of ammonia (NH3) and 9.94 atm of nitrogen (N2) at 378. °C. Answer the following questions about this
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Under these conditions, will the pressure of NH 3 tend to rise or fall?
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Identifying the major species in weak acid or weak base equilibria
The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at
equilibrium. You can leave out water itself.
Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the
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You will find it useful to keep in mind that HF is a weak acid.
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acids:
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bases:
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other: ☐
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Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
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Now suppose a reaction vessel is filled with 1.68 atm of dinitrogen tetroxide (N204) at 148. °C. Answer the following questions about this system:
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Under these conditions, will the pressure of N2O4 tend to rise or fall?
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fall
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be changed to a tendency to fall by adding NO2? Similarly, if you said the
pressure of N2O4 will tend to fall, can that be changed to a tendency to
rise by adding NO2?
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5
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Chapter 7 Solutions
Introductory Chemistry: A Foundation
Ch. 7.2 - at if no ionic solids were soluble in water? Could...Ch. 7.2 - Prob. 7.1SCCh. 7.3 - trong>Exercise 7.2 For each of the following...Ch. 7.5 - Prob. 7.3SCCh. 7.7 - lton believed that atoms were indivisible. Thomson...Ch. 7.7 - ercise 7.4 Classify each of the following...Ch. 7 - onsider the mixing of aqueous solutions of...Ch. 7 - ssume a highly magnified view of a solution of HCI...Ch. 7 - hy is the formation of a solid evidence of a...Ch. 7 - Prob. 4ALQ
Ch. 7 - ixing an aqueous solution of potassium nitrate...Ch. 7 - Prob. 6ALQCh. 7 - se the Arrhenius definition of acids and bases to...Ch. 7 - Prob. 8ALQCh. 7 - hy is the formation of a gas evidence of a...Ch. 7 - Label each of the following statements as true or...Ch. 7 - Look at Fig. 7.2 in the text. It is possible for a...Ch. 7 - What is the purpose of spectator ions? If they are...Ch. 7 - Which of the following must be an...Ch. 7 - If an element is a reactant or product in a...Ch. 7 - Prob. 15ALQCh. 7 - On the basis of the general solubility rules given...Ch. 7 - Write the balanced formula and net ionic equation...Ch. 7 - hy is water an important solvent? Although you...Ch. 7 - hat is a “driving force”? What are some of the...Ch. 7 - Prob. 3QAPCh. 7 - Prob. 4QAPCh. 7 - escribe briefly what happens when an ionic...Ch. 7 - hen the ionic solute K3PO4is dissolved in water,...Ch. 7 - Prob. 7QAPCh. 7 - ow do chemists know that the ions behave...Ch. 7 - uppose you are trying to help your friend...Ch. 7 - Using the general solubility rules given in Table...Ch. 7 - On the basis of the general solubility rules given...Ch. 7 - On the basis of the general solubility rules given...Ch. 7 - On the basis of the general solubility rules given...Ch. 7 - On the basis of the general solubility rules given...Ch. 7 - On the basis of the general solubility rules given...Ch. 7 - Lead(II) nitrate is added to four separate beakers...Ch. 7 - On the basis of the general solubility rules given...Ch. 7 - On the basis of the general solubility rules given...Ch. 7 - Balance each of the following equations that...Ch. 7 - Balance each of the following equations that...Ch. 7 - For each of the following precipitation reactions,...Ch. 7 - A solution of zinc nitrate is mixed with a...Ch. 7 - What is a net ionic equation? What species are...Ch. 7 - Prob. 24QAPCh. 7 - Based on the general solubility rules given in...Ch. 7 - Write the balanced molecular, complete ionic, and...Ch. 7 - Many chromate salts are insoluble, and most have...Ch. 7 - The procedures and principles of qualitative...Ch. 7 - Many plants are poisonous because their stems and...Ch. 7 - Prob. 30QAPCh. 7 - What is meant by a strong acid? Are the strong...Ch. 7 - What is meant by a strong base? Are the strong...Ch. 7 - The same net ionic process takes place when any...Ch. 7 - Prob. 34QAPCh. 7 - If 1000 NaOH units were dissolved in a sample of...Ch. 7 - What is a salt? Give two balanced chemical...Ch. 7 - Write balanced equations showing how three of the...Ch. 7 - Prob. 38QAPCh. 7 - What salt would form when each of the following...Ch. 7 - Prob. 40QAPCh. 7 - Prob. 41QAPCh. 7 - Give an example of a simple chemical reaction that...Ch. 7 - What do we mean when we say that the transfer of...Ch. 7 - Prob. 44QAPCh. 7 - If atoms of the metal calcium were to react with...Ch. 7 - If oxygen molecules, were to react with magnesium...Ch. 7 - Prob. 47QAPCh. 7 - Prob. 48QAPCh. 7 - Prob. 49QAPCh. 7 - Prob. 50QAPCh. 7 - Prob. 51QAPCh. 7 - The reaction between ammonium perchlorate and...Ch. 7 - Identify each of the following unbalanced reaction...Ch. 7 - Prob. 54QAPCh. 7 - Prob. 55QAPCh. 7 - Prob. 56QAPCh. 7 - What is a synthesis or combination reaction? Give...Ch. 7 - What is a decomposition reaction? Give an example....Ch. 7 - Complete and balance each of the following...Ch. 7 - Prob. 60QAPCh. 7 - Prob. 61QAPCh. 7 - Prob. 62QAPCh. 7 - Balance each of the following equations that...Ch. 7 - Prob. 64QAPCh. 7 - Balance each of the following equations that...Ch. 7 - Prob. 66QAPCh. 7 - Distinguish between the molecular equation, the...Ch. 7 - Prob. 68APCh. 7 - Without first writing a full molecular or ionic...Ch. 7 - Complete and balance each of the following...Ch. 7 - Prob. 71APCh. 7 - Prob. 72APCh. 7 - Prob. 73APCh. 7 - Prob. 74APCh. 7 - For each of the following unbalanced molecular...Ch. 7 - Write the balanced molecular, complete ionic, and...Ch. 7 - What strong acid and what strong base would react...Ch. 7 - Prob. 78APCh. 7 - For the reaction 16Fe(s)+3S8(s)8Fe2S3(s), show how...Ch. 7 - Prob. 80APCh. 7 - Identify each of the following unbalanced reaction...Ch. 7 - Which of the following statements is/are true...Ch. 7 - Prob. 83APCh. 7 - Prob. 84APCh. 7 - Prob. 85APCh. 7 - Prob. 86APCh. 7 - Prob. 87APCh. 7 - For each of the following metals, how many...Ch. 7 - For each of the following nonmetals, how many...Ch. 7 - True or false? When solutions of barium hydroxide...Ch. 7 - Classify the reactions represented by the...Ch. 7 - When a sodium chromate solution and aluminum...Ch. 7 - Prob. 93APCh. 7 - Consider a solution with the following ions...Ch. 7 - Prob. 95APCh. 7 - For the following chemical reactions, determine...Ch. 7 - Prob. 97CPCh. 7 - hat kind of visual evidence indicates that a...Ch. 7 - Prob. 2CRCh. 7 - Prob. 3CRCh. 7 - Prob. 4CRCh. 7 - hat is meant by the driving force for a reaction?...Ch. 7 - xplain to your friend what chemists mean by a...Ch. 7 - efine the term strong electrolyte. What types of...Ch. 7 - ummarize the simple solubility rules for ionic...Ch. 7 - n general terms, what are the spectator ions in a...Ch. 7 - Describe some physical and chemical properties of...Ch. 7 - Prob. 11CRCh. 7 - What do we call reactions in which electrons are...Ch. 7 - What is a combustion reaction? Are combustion...Ch. 7 - Prob. 14CRCh. 7 - List and define all the ways of classifying...Ch. 7 - The element carbon undergoes many inorganic...Ch. 7 - Prob. 17CRCh. 7 - The reagent shelf in a general chemistry lab...Ch. 7 - Prob. 19CRCh. 7 - Prob. 20CRCh. 7 - Prob. 21CRCh. 7 - Prob. 22CRCh. 7 - Using the general solubility rules discussed in...Ch. 7 - Write the balanced net ionic equation for the...Ch. 7 - Prob. 25CR
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