Berapakah PH yg di hasilkan dari 16 gram NaOH sebanyak 200 ml

Tentukan konsentrasi larutan.
M = gr/mr x 1000/ml larutan
M = 16/40 x 1000/200
M = 0,4 x 5
M = 2 Molar.

[OH-] = M x Valensi basa
[OH-] = 2 x 1
[OH-] = 2

pOH = -log [OH-]
pOH = -log[2]
pOH = 0,301

pH = 14 - pOH
pH = 14 - 0,301
pH = 13,699