Question

if H+ ion concentration is 10^-3M, then pH is​

Answer 1

Answer:

The PH of the given $H^{+}$ ion concentration is  $3$·

Explanation:

A PH is a quantitative measure for the acidity and basicity of a solution· It can have the values from $0$ to $14$· It is known as a PH scale·

Given that,

The concentration of $H^{+}$ ion  $=$  $10^{-3}$ M

To calculate the PH, we know that

A PH is the negative logarithm of hydronium ion concentration·

That is,

    PH   $=$   $-$ log $[\ H\ ]^{+}$

where,

$[\ H\ ]^{+}$  $=$  the concentration of hydronium ion

On substituting the value, we get

 ⇒  PH   $=$   $-$ log $[\ 10^{-3} ]$

 ⇒  PH   $=$   $-$ $(\ -3\ )$

 ⇒  PH   $=$  $3$

Therefore,

The PH of the given $H^{+}$ ion concentration is  $3$·

From the PH value, it is clear that the given solution is an acidic·