jika larutan garam nax 0,01M mempunyai ph=9,harga ka asam hx sebesar
Kimia
sakinah39
Pertanyaan
jika larutan garam nax 0,01M mempunyai ph=9,harga ka asam hx sebesar
1 Jawaban
-
1. Jawaban Rio1210
pH = pKw - pOH
9 = 14 - pOH
pOH = 5
pOH = - log OH-
5 = - log OH-
OH- = 10^-5
OH- = √ Kw / Ka x Mg
10^-5 = √ 10^-14 / Ka x 0.01
10^-10 = 10^-16 / Ka
Ka = 10^-6