Question

[H+ ] = 2 x 10-7mol/L ph

Answer 1

Olá!!!

A fórmula para o pH é:

pH = -log[H+]

pH = -log[H+]
pH = - log(2 • 10^-7)
pH = -(log2 + log10^-7)
pH = -(0,30 - 7)
pH = -(6,7)
pH = 6,7