Question

What is the hydronium (H3O+) concentration of a solution with a pH of 3.60? A. 2.5 × 10-4 M B. 3.0 × 10-4 M C. 4.0 × 10-11 M D. 4.5 × 10-11 M

Answer 1

`[H_3O^+]=2.5x10^(-4)M`

Step-by-step explanation:

Hello,

In this case, since the pH is mathematically defined as:

`pH=-log([H_3O^+]}`

By solving for the hydronium's concentration with the given pH, its value turns out:

`[H_3O^+]=10^(-pH)=10^(-3.60)=2.5x10^(-4)M`

Best regards.

Answer 2

The H3O+ concentration of the solution with a PH of 3.60 is 2.5 x10^-4 M (answer A)

explanation

PH is calculated using PH = - log [ H3O+] formula

Therefore - log [H3O+] = 3.60

To calculate the concentration of h3O+ ,find the antilog of 3.60

Since -log is at base of 10, the antilog of 3.60 = 10^-3.60 = 2.5 x10^-4M