Question

An HCl solution has a concentration of 3.26 x 10-2 M. What is the pH of this solution?

pH = 12.5

pH = 1.49

pH = 3.3

pH = 2.0

Answer 1

- log (3.26x10^-2) = 1.49 which is B

Answer 2

Answer: The pH of the solution is 1.49

Explanation:

pH is defined as the negative logarithm of hydrogen ion concentration present in a solution.

To calculate the pH of the reaction, we use the equation:

$pH=-\log[H^+]$

where,

$[H^+]=3.26\times 10^{-2}M$

Putting values in above equation, we get:

$pH=-\log(3.26\times 10^{-2})\\\\pH=1.49$

Hence, the pH of the solution is 1.49