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Get Full Access to Chemistry: The Central Science - 12 Edition - Chapter 5 - Problem 47e
Get Full Access to Chemistry: The Central Science - 12 Edition - Chapter 5 - Problem 47e

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# Enthalpy (Sections)Consider the combustion of liquid

ISBN: 9780321696724 27

## Solution for problem 47E Chapter 5

Chemistry: The Central Science | 12th Edition

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Problem 47E

Problem 47E

Enthalpy (Sections)

Consider the combustion of liquid methanol, CH3OH(l):

CH3OH(l) + 3/2 O2(g)→ CO2(g) + 2 H2O(l)

ΔH = –726.5 kJ

(a) What is the enthalpy change for the reverse reaction? (b) Balance the forward reaction with whole-number coefficients. What is ΔH for the reaction represented by this equation? (c) Which is more likely to be thermodynamically favored, the forward reaction or the reverse reaction? (d) If the reaction were written to produce H2O(g) instead of H2O(l), would you expect the magnitude of ΔH to increase, decrease, or stay the same? Explain.

Step-by-Step Solution:
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Chemistry 1 12: General C hemistry II Week 1 1, April 0th ‐ April 14th, 017 Exam 3 ednesday, April 1 9th, 2017 18.2: K and Solubility Calcula埶���ons: SP ‐ Reaction Q uotient ( ) is calculated li , but states the situa埶��� s it currently is rather t han at equilibrium. ‐ Q = K: aturated solu埶���on, no p recipitate ‐ Q < K: Unsaturated solu埶���on, no precipitate ‐ Q > K: Supersaturated s olu埶���on, yes precipitate! Ex . Will a precipitate form when 25mL of 0.01M NaOH is added to 75mL of 0.10M MgCl 2 Mg(OH) ⇆ 2 Mg + H 2 O KSP .5E‐11 Q [ Mg OH Total Volume = 25mL + 75mL ­ ‐ New C oncentration OH = 0.025 .01M / 0.10L = .0025M O H 2+ 2+ New Concentration Mg = 0.075 x 0.10M / 0.10L = 0.075M Mg Use These ^^ F or Q! Q [ 0.07 0.0025 ] Q = 4.69E‐7 Q > K: Precipitate orms! 18.3: Lewis Acid‐Base Complexes and Ion Equilibria : ‐ Lewis Acid = species that ccepts a air f electrons,

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##### ISBN: 9780321696724

Since the solution to 47E from 5 chapter was answered, more than 809 students have viewed the full step-by-step answer. Chemistry: The Central Science was written by and is associated to the ISBN: 9780321696724. This textbook survival guide was created for the textbook: Chemistry: The Central Science, edition: 12. The answer to “Enthalpy (Sections)Consider the combustion of liquid methanol, CH3OH(l):CH3OH(l) + 3/2 O2(g)? CO2(g) + 2 H2O(l)?H = –726.5 kJ(a) What is the enthalpy change for the reverse reaction? (b) Balance the forward reaction with whole-number coefficients. What is ?H for the reaction represented by this equation? (c) Which is more likely to be thermodynamically favored, the forward reaction or the reverse reaction? (d) If the reaction were written to produce H2O(g) instead of H2O(l), would you expect the magnitude of ?H to increase, decrease, or stay the same? Explain.” is broken down into a number of easy to follow steps, and 88 words. This full solution covers the following key subjects: reaction, reverse, thermodynamically, Enthalpy, Forward. This expansive textbook survival guide covers 49 chapters, and 5471 solutions. The full step-by-step solution to problem: 47E from chapter: 5 was answered by , our top Chemistry solution expert on 04/03/17, 07:58AM.

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