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H-9
OBSERVATIONS & CALCULATIONS SHEET - EXPERIMENT H
UNKNOWN ACID
Unknown acid code ___________
Molarity of NaOH ____________
Mass of Solid Acid in Each Titration
run 1
run 2
run 3
Mass of beaker and acid (g)
Mass of beaker (g)
Mass of acid to be titrated (g)
Run 1: Titration with a pH meter
slope after pH calibration: _______________
NaOH buret
Reading (mL)
Measured
pH
NaOH
buret
Reading
(mL) (continued)
Measured
pH
(continued)
NaOH
buret
Reading
(mL) (continued)
Measured
pH
(continued)
0.00
pH of the Equivalence Point: ______________
Indicator chosen: ____
______________
Runs 2 and 3: Titrations with an indicator (no pH meter)
run 2
run 3
Final buret reading (mL)
Initial buret reading (mL)
Volume added (mL)
___________________________
_____________________________
________________
Signature of Laboratory Instructor
Name of Student
Laboratory Section
