procedure, exactly 78.62 mL of 1.209 M NaOH were added to 100.00 mL of 1.418 M lactic acid (HLac). HLac + NaOH → NaLac + H₂O Please answer the following questions. A B. C. of lactic acid in the buffer solution. M Please provider your answer below. (0) Determine the equilibrium concentration Check answer (0) ← of NaLac in the buffer solution. Please provider your answer below. 0₂ Determine the equilibrium concentration Check answer 仁 → GA 4 FA Given that Ka = 1.403×10-4 for lactic acid, determine the pH of the buffer solution. pH = M

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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9.
To correctly adjust the pH of a solution
to be used in an electrophoretic separation
procedure, exactly 78.62 mL of 1.209 M NaOH were
added to 100.00 mL of 1.418 M lactic acid (HLac).
HLac + NaOH →NaLac + H₂O
Please answer the following questions.
A
B.
C.
Determine the equilibrium concentration
of lactic acid in the buffer solution.
M
Please provider your answer below.
A
← →
Check answer
Determine the equilibrium concentration
of NaLac in the buffer solution.
Please provider your answer below.
2
Check answer
←
→
←
Given that Ka = 1.403×10-4 for lactic
acid, determine the pH of the buffer solution.
pH =
M
Transcribed Image Text:9. To correctly adjust the pH of a solution to be used in an electrophoretic separation procedure, exactly 78.62 mL of 1.209 M NaOH were added to 100.00 mL of 1.418 M lactic acid (HLac). HLac + NaOH →NaLac + H₂O Please answer the following questions. A B. C. Determine the equilibrium concentration of lactic acid in the buffer solution. M Please provider your answer below. A ← → Check answer Determine the equilibrium concentration of NaLac in the buffer solution. Please provider your answer below. 2 Check answer ← → ← Given that Ka = 1.403×10-4 for lactic acid, determine the pH of the buffer solution. pH = M
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