Question

The concentration of hydrogen ions [h+] in a solution is 4.5 × 10–2m. what is the ph?

Answer 1

pH = -log [H+]
pH = -log 4.5 x 10-² = 1.3

Answer 2

Answer: The pH of the solution is 1.34

Step-by-step explanation:

pH is defined as negative logarithm of hydrogen ion or hydronium ion concentration. It is basically defined as the power of hydrogen ions in a solution.

The equation used to calculate pH of the solution is:

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

We are given:

`[H^+]=4.5* 10^(-2)M`

Putting values in above equation, we get:

`pH=-\log(4.5* 10^(-2))`

`pH=1.34`

Hence, the pH of the solution is 1.34