The hydroxide ion concentration of a solution is 0.00001 moles per liter. what is the hydrogen ion concentration, and is the solution acidic or basic

Answer is: the hydrogen ion concentration is 10⁻¹⁰ mol/L, solution is basic.

[OH⁻] = 0.00001 mol/L = 10⁻⁴ M.

[OH⁻]·[H⁺ ] = Kw.

0.00001 mol/L ·[H⁺] = 10⁻¹⁴ mol²/L².

[H⁺] = 10⁻¹⁴ mol²/L²: 10⁻⁴ mol/L.

[H⁺] = 10⁻¹⁰ mol/L.

pH = - log[H⁺].

pH = - log (10⁻¹⁰ mol/L).

pH = 10.

If pH is less than seven, solution is acidic; greater than seven, solution is basic; equal seven, solution is neutral.