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pH = 2 jadi [H+] = 10^-2 (M2= 10^-2)
dimisalkan volume sebelum pengenceran 1 (V1=1) maka....
M1 V1 = M2 V2
10^-1 . 1 = 10^-2 . V2
V2 = 10^-1 / 10^-2
V2 = 10
maka harus diencerkan 10 kali
maaf kalo salah