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uysha [10]
3 years ago
5

Lactic acid (ch3ch(oh)cooh) has one acidic hydrogen. a 0.10 m solution of lactic acid has a ph of 2.44. calculate ka.

Computers and Technology
1 answer:
sammy [17]3 years ago
5 0

The answer is : Ka=0.000137

HA -> H+ + A-

0.10 x x

0.10-x +x +x

[H+]= 10^-2.44 = 0.00363

x= 0.00363

(0.00363)(0.00363)/(0.10-0.00363) = 0.000137

Ka=0.000137

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