General Chemistry: Atoms First
2nd Edition
ISBN: 9780321809261
Author: John E. McMurry, Robert C. Fay
Publisher: Prentice Hall
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Textbook Question
Chapter 7, Problem 7.85SP
Balance the half-reactions in Problem 7.83, assuming that they occur in basic solution.
- (a) O2(g) → OH−(aq)
- (b) H2O2(aq) → O2(g)
- (c) MnO4−(aq) → MnO42−(aq)
- (d) CH3OH(aq) → CH2O(aq)
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Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
N2 (g) + 3H2 (g) = 2NH3 (g) AG⁰ = -34. KJ
Now suppose a reaction vessel is filled with 8.06 atm of nitrogen (N2) and 2.58 atm of ammonia (NH3) at 106. °C. Answer the following questions about this
system:
?
rise
Under these conditions, will the pressure of N2 tend to rise or fall?
☐ x10
fall
Is it possible to reverse this tendency by adding H₂?
In other words, if you said the pressure of N2 will tend to rise, can that be
changed to a tendency to fall by adding H₂? Similarly, if you said the
pressure of N2 will tend to fall, can that be changed to a tendency to rise
by adding H₂?
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the minimum pressure of H₂ needed to reverse it.
Round your answer to 2 significant digits.
yes
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atm
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5
00.
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Chapter 7 Solutions
General Chemistry: Atoms First
Ch. 7.1 - What is the molar concentration of Br ions in a...Ch. 7.1 - Three different substances, A2X, A2Y, and A2Z, are...Ch. 7.2 - Prob. 7.3PCh. 7.3 - Write net ionic equations for the following...Ch. 7.4 - Predict whether each of the following compounds is...Ch. 7.4 - Predict whether a precipitation reaction will...Ch. 7.4 - How might you use a precipitation reaction to...Ch. 7.4 - An aqueous solution containing an anion,...Ch. 7.5 - Prob. 7.9PCh. 7.5 - Give likely chemical formulas corresponding to the...
Ch. 7.5 - Write a balanced ionic equation and net ionic...Ch. 7.5 - The following pictures represent aqueous solutions...Ch. 7.6 - Assign an oxidation number to each atom in the...Ch. 7.7 - Prob. 7.14PCh. 7.7 - In each of the following reactions, tell which...Ch. 7.8 - Predict whether the following reactions will...Ch. 7.8 - Element B will reduce the cation of element A (A+)...Ch. 7.8 - Use the following reactions to arrange the...Ch. 7.9 - Write unbalanced half-reactions for the following...Ch. 7.9 - Balance the following net ionic equation by the...Ch. 7.9 - Balance the following equation by the...Ch. 7.10 - What is the molar concentration of Fe2+ ion in an...Ch. 7.10 - In the common lead storage battery used in...Ch. 7.10 - Many dozens of different solvents are used in...Ch. 7 - Prob. 7.25CPCh. 7 - Assume that an aqueous solution of a cation,...Ch. 7 - Assume that an aqueous solution of OH, represented...Ch. 7 - Prob. 7.28CPCh. 7 - Prob. 7.29CPCh. 7 - Prob. 7.30CPCh. 7 - Prob. 7.31CPCh. 7 - Prob. 7.32SPCh. 7 - Prob. 7.33SPCh. 7 - Write net ionic equations for the reactions listed...Ch. 7 - Prob. 7.35SPCh. 7 - Prob. 7.36SPCh. 7 - Prob. 7.37SPCh. 7 - Prob. 7.38SPCh. 7 - Prob. 7.39SPCh. 7 - Classify each of the following substances as...Ch. 7 - Prob. 7.41SPCh. 7 - What is the total molar concentration of ions in...Ch. 7 - What is the total molar concentration of ions in...Ch. 7 - Which of the following substances are likely to be...Ch. 7 - Which of the following substances are likely to be...Ch. 7 - Predict whether a precipitation reaction will...Ch. 7 - Predict whether a precipitation reaction will...Ch. 7 - Prob. 7.48SPCh. 7 - Prob. 7.49SPCh. 7 - Prob. 7.50SPCh. 7 - How would you prepare the following substances by...Ch. 7 - What is the mass and the identity of the...Ch. 7 - What is the mass and the identity of the...Ch. 7 - Prob. 7.54SPCh. 7 - Prob. 7.55SPCh. 7 - Prob. 7.56SPCh. 7 - Assume that you have an aqueous solution of an...Ch. 7 - Prob. 7.58SPCh. 7 - Prob. 7.59SPCh. 7 - Prob. 7.60SPCh. 7 - Write balanced ionic equations for the following...Ch. 7 - Write balanced net ionic equations for the...Ch. 7 - Prob. 7.63SPCh. 7 - If the following solutions are mixed, is the...Ch. 7 - Prob. 7.65SPCh. 7 - How many milliliters of 1.00 M KOH must be added...Ch. 7 - How many milliliters of 2.00 M HCl must be added...Ch. 7 - Where in the periodic table are the best reducing...Ch. 7 - Prob. 7.69SPCh. 7 - In each of the following instances, tell whether...Ch. 7 - Prob. 7.71SPCh. 7 - Prob. 7.72SPCh. 7 - Prob. 7.73SPCh. 7 - Prob. 7.74SPCh. 7 - Prob. 7.75SPCh. 7 - Prob. 7.76SPCh. 7 - Prob. 7.77SPCh. 7 - Prob. 7.78SPCh. 7 - Neither strontium (Sr) nor antimony (Sb) is shown...Ch. 7 - Prob. 7.80SPCh. 7 - Prob. 7.81SPCh. 7 - Prob. 7.82SPCh. 7 - Prob. 7.83SPCh. 7 - Prob. 7.84SPCh. 7 - Balance the half-reactions in Problem 7.83,...Ch. 7 - Prob. 7.86SPCh. 7 - Prob. 7.87SPCh. 7 - Balance the following half-reactions: (a) (acidic)...Ch. 7 - Prob. 7.89SPCh. 7 - Write balanced net ionic equations for the...Ch. 7 - Write balanced net ionic equations for the...Ch. 7 - Write balanced net ionic equations for the...Ch. 7 - Prob. 7.93SPCh. 7 - Prob. 7.94SPCh. 7 - Prob. 7.95SPCh. 7 - Prob. 7.96SPCh. 7 - Prob. 7.97SPCh. 7 - Prob. 7.98SPCh. 7 - Standardized solutions of KBrO3 are frequently...Ch. 7 - Prob. 7.100SPCh. 7 - Prob. 7.101SPCh. 7 - Prob. 7.102SPCh. 7 - Calcium levels in blood can be determined by...Ch. 7 - Balance the equations for the following reactions...Ch. 7 - Prob. 7.105CHPCh. 7 - Prob. 7.106CHPCh. 7 - Balance the equations for the following reactions...Ch. 7 - Prob. 7.108CHPCh. 7 - Prob. 7.109CHPCh. 7 - Prob. 7.110CHPCh. 7 - Prob. 7.111CHPCh. 7 - Prob. 7.112CHPCh. 7 - Succinic acid, an intermediate in the metabolism...Ch. 7 - How could you use a precipitation reaction to...Ch. 7 - How could you use a precipitation reaction to...Ch. 7 - Write a balanced net ionic equation for each of...Ch. 7 - A 100.0 mL solution containing aqueous HCl and HBr...Ch. 7 - Write balanced net ionic equations for the...Ch. 7 - Prob. 7.119CHPCh. 7 - Prob. 7.120CHPCh. 7 - When 75.0 mL of a 0.100 M lead(II) nitrate...Ch. 7 - Prob. 7.122CHPCh. 7 - Prob. 7.123CHPCh. 7 - Hydrogen peroxide can be either an oxidizing or...Ch. 7 - Prob. 7.125CHPCh. 7 - Iron content in ores can be determined by a redox...Ch. 7 - A mixture of FeCl2 and NaCl is dissolved in water,...Ch. 7 - Prob. 7.128MPCh. 7 - The following three solutions are mixed: 100.0 mL...Ch. 7 - Prob. 7.130MPCh. 7 - Prob. 7.131MPCh. 7 - Prob. 7.132MPCh. 7 - Prob. 7.133MPCh. 7 - Brass is an approximately 4:1 alloy of copper and...Ch. 7 - Prob. 7.135MPCh. 7 - Prob. 7.136MP
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