Author Question: Calculate the pH of a solution prepared by dissolving 0.270 mol of formic acid (HCO2H) and 0.260 mol ... (Read 83 times)

NClaborn · **on:** Aug 27, 2018

Calculate the pH of a solution prepared by dissolving 0.270 mol of formic acid (HCO2H) and 0.260 mol of sodium formate (NaCO2H) in water sufficient to yield 1.00 L of solution. The Ka of formic acid is 1.77 10-4.

A) 2.099
B) 10.264
C) 3.736
D) 2.307
E) 3.952

Question 2

In which of the following atoms is the 3s orbital closest to the nucleus?

A) S
B) Po
C) Te
D) Se
E) P