Question

Calculate the pH of the following acid or base.

1. 3.6 x 10-7 M HNO3

2. 2.0 x 10-4 M NaOH

Answer 1

1.$pH =-log (3.6×10 ^{-7})$

$pH =6.4$

2.$pH =-log(2.0×10 ^{-4})$

$pH=3.7$