Question 1
Calculate the pH of a 0.345 mol L
-1 solution of formic acid, K
a = 1.8 × 10
-4.
◦ 2.49
◦ 2.04
◦ 3.17
◦ 2.10
◦ 1.60
Question 2
Calculate the pH of a 0.400 mol L
-1 solution of formic acid, K
a = 1.8 × 10
-4.
◦ 4.00
◦ 2.29
◦ 3.71
◦ 2.07
◦ 3.44