Asked by Anonymous
Lactic acid, CH
3
CHOHCO
2
H, is found in sour milk, in sauerkraut, and in muscles after
activity.
K
a
for lactic acid = 1.4 x 10
-4
.
a.
If 2.75 g of NaCH
3
CHOHCO
2
, sodium lactate, is added to 5.00 x 10
2
mL of 0.100 M
lactic acid, what is the pH of the resulting buffer solution?
b.
Is the final pH lower or higher than the pH of the lactic acid solution?
3
CHOHCO
2
H, is found in sour milk, in sauerkraut, and in muscles after
activity.
K
a
for lactic acid = 1.4 x 10
-4
.
a.
If 2.75 g of NaCH
3
CHOHCO
2
, sodium lactate, is added to 5.00 x 10
2
mL of 0.100 M
lactic acid, what is the pH of the resulting buffer solution?
b.
Is the final pH lower or higher than the pH of the lactic acid solution?
Answers
Answered by
DrBob222
Your posting leaves a little to be desired. It's quite difficult to interpret. For this problem, use the Henderson-Hasselbalch. Substitute the numbers and solve for pH.
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