You have a concentration cell in which the cathode has a silver electrode with 0.10 M Ag + . The anode also has a silver electrode with Ag + ( aq ), 0.050 M S 2 O 3 2− , and 1.0 × 10 −3 M Ag(S 2 O 3 ) 2 3− . You read the voltage to be 0.76 V. a. Calculate the concentration of Ag + at the anode. b. Determine the value of the equilibrium constant for the formation of Ag(S 2 O 3 )2 3− Ag + ( a q ) + 2S O 2 3 2 − ( a q ) ⇌ Ag(S2O 3 ) 3 − 2 ( a q ) K = ?
You have a concentration cell in which the cathode has a silver electrode with 0.10 M Ag + . The anode also has a silver electrode with Ag + ( aq ), 0.050 M S 2 O 3 2− , and 1.0 × 10 −3 M Ag(S 2 O 3 ) 2 3− . You read the voltage to be 0.76 V. a. Calculate the concentration of Ag + at the anode. b. Determine the value of the equilibrium constant for the formation of Ag(S 2 O 3 )2 3− Ag + ( a q ) + 2S O 2 3 2 − ( a q ) ⇌ Ag(S2O 3 ) 3 − 2 ( a q ) K = ?
Solution Summary: The author explains how the Nernst equation calculates the cell potential and the standard reduction potential value. The equilibrium constant helps to predict the extent of the reaction.
You have a concentration cell in which the cathode has a silver electrode with 0.10 M Ag+. The anode also has a silver electrode with Ag+(aq), 0.050 M S2O32−, and 1.0 × 10−3M Ag(S2O3)23−. You read the voltage to be 0.76 V.
a. Calculate the concentration of Ag+ at the anode.
b. Determine the value of the equilibrium constant for the formation of Ag(S2O3)23−
Ag
+
(
a
q
)
+
2S
O
2
3
2
−
(
a
q
)
⇌
Ag(S2O
3
)
3
−
2
(
a
q
)
K
=
?
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
Ar
Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
2NOCI (g) 2NO (g) + Cl2 (g) AGº =41. kJ
Now suppose a reaction vessel is filled with 4.50 atm of nitrosyl chloride (NOCI) and 6.38 atm of chlorine (C12) at 212. °C. Answer the following questions
about this system:
?
rise
Under these conditions, will the pressure of NOCI tend to rise or fall?
x10
fall
Is it possible to reverse this tendency by adding NO?
In other words, if you said the pressure of NOCI will tend to rise, can that
be changed to a tendency to fall by adding NO? Similarly, if you said the
pressure of NOCI will tend to fall, can that be changed to a tendency to
rise by adding NO?
yes
no
If you said the tendency can be reversed in the second question, calculate
the minimum pressure of NO needed to reverse it.
Round your answer to 2 significant digits.
0.035 atm
✓
G
00.
18
Ar
Chapter 18 Solutions
Bundle: Chemistry, 10th + Laboratory Handbook for General Chemistry, 3rd + Student Resource Center Printed Access Card + Student Solutions Manual for ... Access Card for Zumdahl/Zumdahl/DeCoste
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