CH3COOK Mr=98 yg terdapat dalam 100ml larutan CH3COOK dengan pH=9 adalah...Gram Ka=CH3COOh=10^-5 a.0,245 b,0,49 c.0,98 d.9,8 e.19,6
AghaJaiza
PH =9,POH=5,OH^-=10^-5 OH-=AKAR Kw/ka x Mg (10^-5)^2=10^-14/10^-5 x Mg 10^-10/10^-9=Mg 10^-1=Mg M garam=m/mr x 1000/v 10^-1=m/98 x10 9,8=m x 10 98.10^-1/10=m 98.10.10^-2=m 0,98=m
OH-=AKAR Kw/ka x Mg
(10^-5)^2=10^-14/10^-5 x Mg
10^-10/10^-9=Mg
10^-1=Mg
M garam=m/mr x 1000/v
10^-1=m/98 x10
9,8=m x 10
98.10^-1/10=m
98.10.10^-2=m
0,98=m
C. 0,98 .,..,., :) ;)