Basic Chemistry (5th Edition)
5th Edition
ISBN: 9780134138046
Author: Karen C. Timberlake
Publisher: PEARSON
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Chapter 1.1, Problem 1.2QAP
Write a one-sentence definition for each of the following:
- chemistry
- chemical
1.2 Ask two of your friends (not in this class) to define the terms in problem 1.1. Do their answers agree with the definitions you provided?
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Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
N2O4 (g) 2NO2 (g)
AG⁰ = 5.4 kJ
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:
rise
Under these conditions, will the pressure of N2O4 tend to rise or fall?
x10
fall
Is it possible to reverse this tendency by adding NO2?
In other words, if you said the pressure of N2O4 will tend to rise, can that
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?
If you said the tendency can be reversed in the second question, calculate
the minimum pressure of NO 2 needed to reverse it.
Round your answer to 2 significant digits.
yes
no
0.42 atm
☑
5
0/5
?
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Ar
Homework 13 (Ch17)
Question 4 of 4 (1 point) | Question Attempt: 2 of 2
✓ 1
✓ 2
= 3
4
Time Remaining: 4:25:54
Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction free energy of the following chemical reaction:
2CH3OH (g)+302 (g) → 2CO2 (g) + 4H₂O (g)
Round your answer to zero decimal places.
☐ kJ
x10
☐
Subm
Check
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Identifying the major species in weak acid or weak base equilibria
Your answer is incorrect.
• Row 2: Your answer is incorrect.
• Row 3: Your answer is incorrect.
• Row 6: Your answer is incorrect.
0/5
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
formulas of the species that will act as neither acids nor bases in the 'other' row.
You will find it useful to keep in mind that HF is a weak acid.
acids:
HF
0.1 mol of NaOH is added to
1.0 L of a 0.7M HF
solution.
bases:
0.13 mol of HCl is added to
1.0 L of a solution that is
1.0M in both HF and KF.
Exponent
other:
F
acids: HF
bases: F
other:
K
1
0,0,...
?
000
18
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Chapter 1 Solutions
Basic Chemistry (5th Edition)
Ch. 1.1 - Write a one-sentence definition for each of the...Ch. 1.1 - Write a one-sentence definition for each of the...Ch. 1.1 - Obtain a bottle of multivitamins and read the list...Ch. 1.1 - Prob. 1.4QAPCh. 1.1 - Read the labels on some items found in your...Ch. 1.1 - Read the labels on products used to wash your...Ch. 1.2 - Define each of the following terms of the...Ch. 1.2 - Identify each of the following activities in the...Ch. 1.2 - Prob. 1.9QAPCh. 1.2 - Identify each activity, a to f, as an observation...
Ch. 1.2 - Prob. 1.11QAPCh. 1.2 - Identify each of the following as an observation...Ch. 1.3 - Prob. 1.13QAPCh. 1.3 - Prob. 1.14QAPCh. 1.3 - Prob. 1.15QAPCh. 1.3 - Prob. 1.16QAPCh. 1.4 - What is the place value for the bold digit? 7.3288...Ch. 1.4 - Prob. 1.18QAPCh. 1.4 - Prob. 1.19QAPCh. 1.4 - Prob. 1.20QAPCh. 1.4 - Prob. 1.21QAPCh. 1.4 - Prob. 1.22QAPCh. 1.4 - Prob. 1.23QAPCh. 1.4 - Prob. 1.24QAPCh. 1.4 - Prob. 1.25QAPCh. 1.4 - What is measured on the horizontal axis? What is...Ch. 1.5 - Prob. 1.27QAPCh. 1.5 - Prob. 1.28QAPCh. 1.5 - Write each of the following as a standard number:...Ch. 1.5 - Prob. 1.30QAPCh. 1.5 - Prob. 1.31QAPCh. 1.5 - Prob. 1.32QAPCh. 1 - Prob. 1.33FUCh. 1 - Prob. 1.34FUCh. 1 - Prob. 1.35UTCCh. 1 - Prob. 1.36UTCCh. 1 - Prob. 1.37UTCCh. 1 - Prob. 1.38UTCCh. 1 - Prob. 1.39UTCCh. 1 - Prob. 1.40UTCCh. 1 - Prob. 1.41UTCCh. 1 - Prob. 1.42UTCCh. 1 - Prob. 1.43AQAPCh. 1 - Prob. 1.44AQAPCh. 1 - Prob. 1.45AQAPCh. 1 - Prob. 1.46AQAPCh. 1 - Prob. 1.47AQAPCh. 1 - Prob. 1.48AQAPCh. 1 - Evaluate each of the following: (1.4) 4x(-8)=...Ch. 1 - Prob. 1.50AQAPCh. 1 - Prob. 1.51AQAPCh. 1 - Prob. 1.52AQAPCh. 1 - Prob. 1.53AQAPCh. 1 - Prob. 1.54AQAPCh. 1 - Prob. 1.55AQAPCh. 1 - Prob. 1.56AQAPCh. 1 - Prob. 1.57CQCh. 1 - Prob. 1.58CQCh. 1 - Solve each of the following for X: (1.4) 2x + 5 =...Ch. 1 - Solve each of the following for z: (1.4) 3z ( 6)...Ch. 1 - What does the title indicate about the graph?...Ch. 1 - What is measured on the horizontal axis? (1.4)...
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