Question

Berapa volume NaOH 0,1M dan CH3COOH 0,1M yang diperlukan untuk membuat 100mL dgn pH 6 jika Ka CH3COOH 1x10-5. pleasee bantuin yaa

Answer 1

Dik: M NaOH= 0,1 M
MCH3COOH = 0,1 M
V CH3COOH = 100 mL
pH = 6
Ka = 1x10-5
Dit: V NaOH=...?
Jwb:
a x Va x Ma = b x Vb x Mb
NaOH + CH3COOH -> NaCH3COO + H2O

1 x 100 x 0,1 = 1 x Vb x 0,1
10 = 0,1 Vb
Vb = 10/0,1
Vb= 100 mL.

maaf jika salah