Question

Asam sianida, HCN, mempunyai Ka = 5, 0 * 10 ^ - 10 pH larutan HCN 0,05 M adalah...​

Answer 1

Jawaban:

pH larutan = 6 - log (5)

Penjelasan:

[H+] = √(Ka x [HCN])

[H+] = √(5 x10⁻¹⁰ x 0.05)

[H+] = 5 x 10⁻⁶ M

pH = - log([H+])

pH = - log( 5 x 10⁻⁶ )

pH = 6 - log (5)