Question

The pH of a fruit juice is 5.3 Find the hydronium ion concentration [H3O+] of the juice. Use the formula pH = -log[H30+]

Answer 1

`\lbrack H_3O^+\rbrack\text{ = }5.0\text{ }*10^{-6\text{ }}moles\text{ per liter}`

Step-by-step explanation:

By definition, the pH of a solution is the negative logarithm to base 10 of the concentration of Hydroxonium or oxonium ion

Mathematically, we have this as:

`pH=-log\lbrack H_3O^+\rbrack_{}`

We can change the formula subject so we would have hydroxonium ion on the left

Mathematically, we have this as:

`\lbrack H_3O^+\rbrack\text{ = ANTILOG (-pH)}`

Finally, we have the calculation as follows:

`\lbrack H_3O^+\rbrack\text{ = antilog(-5.3) = }0.000005011872`

In the scientific form,we have this as:

`5.0\text{ }*10^{-6\text{ }}moles\text{ per liter}`