Use information from Appendix D to calculate the pH of the following solutions.

a). a solution that is 0.240 M in sodium formate (HCOONa) and 0.130 M in formic acid (HCOOH)

b). a solution that is 0.510 M in pyridine (C5H5N) and 0.460 M in pyridinium chloride (C5H5NHCl)

c). a solution that is made by combining 55 mL of 6.0Ã10^â2 M hydrofluoric acid with 125 mL of 0.10 Msodium fluoride

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Lelia LubowitzLv2

31 Dec 2019

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Use information from Appendix D to calculate the pH of (a) a solution that is 0.250 M in sodium formate (HCOONa) and 0.100 M in formic acid (HCOOH), (b) a solution that is 0.510 M in pyridine (C₅H₅N) and 0.450 M in pyridinium chloride (C₅H₅NHCl), (c) a solution that is made by combining 55 mL of 0.050 M hydrofluoric acid with 125 mL of 0.10 M sodium fluoride.

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Part A:

Calculate the pH of a solution that is 0.250 M in sodium formate (HCOONa) and 0.110 M in formic acid (HCOOH).

Part B:

Calculate the pH of a solution that is 0.520 M in pyridine (C5H5N) and 0.470 M in pyridinium chloride (C5H5NHCl).

Part C:

Calculate the pH of a solution that is made by combining 55 mL of 0.040 M hydrofluoric acid with 125 mL of 0.120 M sodium fluoride.

Use information from Appendix D to calculate the pH of (a) a solution that is 0.150 M in sodium formate (HCOONa) and 0.200 M in formic acid (HCOOH); (b) a solution that is 0.210 M in pyridine (C5H5N) and 0.350 M pyridinium chloride (C5H5NHCI); (c) a solution that is made by combining 125 mL of 0.050 M hydrofluoric acid with 50.0 mL of 0.10 M sodium fluoride.