Question

PH is defined as the negative log10 of the hydrogen ion activity, aH+, although general chemistry texts commonly express it in terms of the hydronium ion concentration. Thus, pH = −log10 [H3O+], where [H3O+] represents the concentration of H3O+ in units of moles per liter (M). Calculate the pH or [H3O+], as required, for the following solutions.

{H3O+}= 5.79 X 10^-4M

Answer 1

The pH value is 3.23

Step-by-step explanation:

Given that,

`[H_(3)O^(+)]=5.79*10^(-4)\ M`

We know that,

pH is defined as the negative log10 of the hydrogen ion activity,

We need to calculate the pH

Using formula of pH

`pH=-log_(10)[H_(3)O^(+)]`

Put the value of
`[H_(3)O^(+)]`

`pH=-log_(10)(5.79*10^(-4))`

`pH=3.23`

Hence, The pH value is 3.23