Question

The pH of a solution containing 0.1 mM H+ is _______ ( 1mM = 10-3M)

Answer 1

The pH of a solution containing 0.1 mM H+ is 4

Step-by-step explanation:

The pH of any solution is given by the following mathematical equation -

`pH = -log[H_(+)]\\`----------- Equation (A)

Where,

`H_(+)` = the concentration of hydrogen ion in the solution.

Given

`H_(+)`

=
`0.1mM\\=0.1 * 10^(-3)\\= 10^(-4)\\`

Substituting the given value in equation (A) , we get -

`pH = -log[10^(-4)]`

`= -(-4)\\= 4`

Hence, The pH of a solution containing 0.1 mM H+ is 4