Hitunglah ph larutan 100 ml 0,1m hcooh ka=4.10-5

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Hitunglah ph larutan 100 ml 0,1m hcooh ka=4.10-5

[H+]= √Ka.Ma
=√4.10^-5.10^-1
=√4.10^-6
=2.10^-3

pH= -log [ H+]
=-log 2.10^-3
=3-log 2