13) Determine the pOH of a 0.188 M NH3 solution at 25°C. The Kb of NH3 is 1.76 x 10-5.A) 5.480B) 2.740C) 8.520D) 11.260E) 12.65614) Determine the pH of a 0.22 M NaF solution at 25°C. The Ka of HF is 3.5 x 10-5.A) 10.20B) 5.10C) 8.90D) 11.44E) 2.5615) Calculate the pH of a buffer that is 0.225 M HC2H302 and 0.162 M KC2H3O2. The Ka forHC2H302 is 1.8 x 10-5.A) 4.89B) 9.11C) 4.74D) 9.26E) 4.6016) Calculate the pH of a solution formed by mixing 250.0 mL of 0.15 M NH4CI with 200.0 ml.of 0.12 M NH3. The Kb for NH3 is 1.8 x 10-5.A) 9.06B) 9.45C) 4.55D) 4.74E) 9.2617) A 1.00 L buffer solution is 0.150 M in HC7H5O2 and 0.250 M in LIC7H502. Calculate thepH of the solution after the addition of 100.0 mL of 1.00 M HCI. The Ka for HC7H5O2 is 6.5 x10-5.A) 4.19B) 5.03C) 4.41MacBook Air

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Answered: 13) Determine the pOH of a 0.188 M NH3…

13) Determine the pOH of a 0.188 M NH3 solution at 25°C. The Kb of NH3 is 1.76 x 10-5. A) 5.480 B) 2.740 C) 8.520 D) 11.260 E) 12.656

Chemistry

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ISBN:9781305957404

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Chapter1: Chemical Foundations

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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

13) Determine the pOH of a 0.188 M NH3 solution at 25°C. The Kb of NH3 is 1.76 x 10-5.
A) 5.480
B) 2.740
C) 8.520
D) 11.260
E) 12.656
14) Determine the pH of a 0.22 M NaF solution at 25°C. The Ka of HF is 3.5 x 10-5.
A) 10.20
B) 5.10
C) 8.90
D) 11.44
E) 2.56
15) Calculate the pH of a buffer that is 0.225 M HC2H302 and 0.162 M KC2H3O2. The Ka for
HC2H302 is 1.8 x 10-5.
A) 4.89
B) 9.11
C) 4.74
D) 9.26
E) 4.60
16) Calculate the pH of a solution formed by mixing 250.0 mL of 0.15 M NH4CI with 200.0 ml.
of 0.12 M NH3. The Kb for NH3 is 1.8 x 10-5.
A) 9.06
B) 9.45
C) 4.55
D) 4.74
E) 9.26
17) A 1.00 L buffer solution is 0.150 M in HC7H5O2 and 0.250 M in LIC7H502. Calculate the
pH of the solution after the addition of 100.0 mL of 1.00 M HCI. The Ka for HC7H5O2 is 6.5 x
10-5.
A) 4.19
B) 5.03
C) 4.41
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