What are the concentrations of hydroxide and hydronium ions in a solution with a ph of 8.3?

[H⁺] = 5.012 x 10⁻⁹. & [OH⁻] = 1.995 x 10⁻⁶.

Explanation:

∵ pH = - log[H⁺]

8.3 = - log[H⁺]

∴ log[H⁺] = - 8.3.

∴ [H⁺] = 5.012 x 10⁻⁹.

∵ [H⁺][OH⁻] = 10⁻¹⁴.

∴ [OH⁻] = 10⁻¹⁴/[H⁺] = 10⁻¹⁴/(5.012 x 10⁻⁹) = 1.995 x 10⁻⁶.

i just got this problem. it's 90.3

c (diamond),

sio2 (quartz)