Calculate the concentration of H₃O⁺ in a solution that contains 5.5 × 10^-5 M OH⁻ at 25°C.Identify the solution as acidic,basic,or neutral. A) 1.8 × 10^-10 M, basic B) 1.8 × 10^-10 M, acidic C) 5.5 × 10^-10 M, neutral D) 9.2 × 10^-1 M, acidic E) 9.2 × 10^-1 M, basic

Question

Quizplus · Accepted Answer

The concentration of $OH^-$ is given as $5.5 \times 10^{-5} M$. At 25°C, the water ion product, $K_w$, is $1.0 \times 10^{-14}$. To find the concentration of $H_3O^+$, use the relation $K_w = [H_3O^+][OH^-]$. Thus, $[H_3O^+] = \frac{K_w}{[OH^-]} = \frac{1.0 \times 10^{-14}}{5.5 \times 10^{-5}} = 1.8 \times 10^{-10} M$. Since $OH^-$ concentration is higher than $H_3O^+$ concentration, the solution is basic.

Calculate the Concentration of H3O⁺ in a Solution That Contains

Calculate the Concentration of H₃O⁺ in a Solution That Contains