Which of the following acid-base pairs would work

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Calculate the pH of a 1.03 M potassium nitrite, KNO2, solution.

Which of the following acid-base pairs would work best for a laboratory experiment requiring a pH of 6.8? What molar ratios of the compounds would you use to prepare the solution?

a. 0.20 mol H2S / 0.13 mol HS-
b. 0.13 mol H2S / 0.20 mol HS-
c. 0.10 mol HCO3- / 0.26 mol CO32-
d. 0.26 mol HCO3- / 0.10 mol CO32-

Reference no: EM13169257

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