Question

alculate the concentration of H3O⁺in a solution that contains 5.5 × 10-5M OH⁻at 25°C. Identify the solution as acidic, basic, or neutral.A) 1.8 × 10-10M, basicB) 1.8 × 10-10M, acidicC) 5.5 × 10-10M, neutralD) 9.2 × 10-1M, acidicE) 9.2 × 10-1M, basic

Answer 1

[H₃O⁺] = 1.82 x 10⁻¹⁰M

Step-by-step explanation:

[H₃O⁺][OH⁻] = Kw = 1.0 x 10⁻¹⁴ = [H₃O⁺](5.5 x 10⁻⁵) => [H₃O⁺] = (1.0 x 10⁻¹⁴/5.5 x 10⁻⁵)M = 1.82 x 10⁻¹⁰M