Question

Solve the problems below and show the complete solution.
1. Calculate the pH of a solution containing 0.20 M HF and 0.10 M NaF. ( Ka = 6.3 x 10–4)

Answer 1

$−log(6.3×10\raisebox{0.25em}{-4})+log(\frac{0.1}{0.2}) =2.9$