Question

If a sample of a certain solution is determined to have a [H20+] concentration of 1.25 x 10-' moles/liter, what is its pH? Round off your answerto one decimal place.

Answer 1

Hello

To solve this question, we simply need to use the formula of findind the pH of a solution.

$\begin{gathered} pH=-\text{log}\lbrack H_2O^+\rbrack \\ pH=-\log \lbrack1.25\times10^{-1}\rbrack \\ pH=0.903\approx0.9 \end{gathered}$

From the calculation above, the pH of the solution is 0.9 and this indicates that it is a strong acidic solution.