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mula 0,03 0,01
reaksi 0,01 0,01 0,01
sisa 0,02 - 0,01
OH-=Kb×nbasa/ngaram
OH-=10^-5×2×10-2/10^-2
=2×10^-5
=5-log2
pH=14-5-log2
=9+log2
=9,3