Question

1. What is the pH of an acid having (H+] = 10^-3 M​

Answer 1

Answer:

4.3....

Explanation:

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Answer 2

Concept:

pH or "power of Hydrogen" is a scale to measure the acidity or basicity of an aqueous solution. the pH scale is log based scale and inversely indicates the Hydrogen ions concentration.

${\displaystyle {\ce {pH}}=-\log([{\ce {H+}}])}$

Given:

$[{\ce {H^{+}}] = 10^{-3} M$

Find:

pH

Solution:

${\displaystyle {\ce {pH}}=-\log({\ce {10^{-3}}})}$

${\displaystyle {\ce {pH}}= 3$

The pH of the acid is 3.

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