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I-8
B. Determine the Effect of Acid and Base Additions on the Buffer Solutions.
Molarity of HCl ___________ M
Molarity of NaOH ____________ M
Part III
acetic acid-acetate
buffer
Part IV
pH 7.00 commercial
buffer
1.
a.
one pH unit change with HCl
initial pH
____________
____________
final buret reading
____________ mL
____________ mL
initial buret reading
____________ mL
____________ mL
volume of HCl added
____________ mL
____________ mL
final pH
____________
____________
b. second pH unit change with HCl
final buret reading
____________ mL
____________ mL
initial buret reading
____________ mL
____________ mL
volume of HCl added
____________ mL
____________ mL
final pH
____________
____________
2.
a. one pH unit change with NaOH
initial pH
____________
____________
final buret reading
____________ mL
____________ mL
initial buret reading
____________ mL
____________ mL
volume of NaOH added
____________ mL
____________ mL
final pH
____________
____________
b. second pH unit change with NaOH
final buret reading
____________ mL
____________ mL
initial buret reading
____________ mL
____________ mL
volume of NaOH added
____________ mL
____________ mL
final pH
____________
____________
___________________________
_____________________________
_______________
Signature of Laboratory Instructor
Name of Student
Laboratory Section
