A solution of HCl has a concentration of 1.20 x 10-2 M. What is the pH of this solution? pH = 1.20 pH = 11.2 pH = 1.92 pH = 2.33

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asked Mar 14, 2018 208k views

2 Answers

Wookiekim · Answer 1 · 2018-03-20T03:34:21+0000

Answer: The pH of the solution is 1.92

Step-by-step explanation:

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

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

We are given:

Hydrochloric acid is a monoprotic acid and it dissociates 1 mole of hydrogen ions. So, the concentration of hydrogen ions is
1.20* 10^(-2)M

[H^+]=1.20* 10^(-2)M

Putting values in above equation, we get:

$pH=-\log(1.20* 10^(-2))\\\\pH=1.92$

Hence, the pH of the solution is 1.92