Data Table for ANAL 902
I. Standardization of NaOH(aq) Solution
Original Measurements Trial 1 Trial 2 Trial 3 Trial 4
if necessary*
mass of KHP (g)
initial buret reading (mL)
final buret reading (mL)
Calculated Results
volume of NaOH used (mL)
moles of KHP titrated
moles of NaOH used
concentration of NaOH (M)
*Have the results of your three trials checked by me before proceeding.
Average concentration of NaOH(aq) _____________
II. Mass percent of Commercial Vinegar Solution
Original Measurements 1st Trial 2nd Trial 3rd Trial 4th Trial
if necessary*
mass of vinegar solution (g)
initial buret reading (mL)
final buret reading (mL)
Calculated Results
volume of NaOH used (mL)
moles of NaOH used
moles of CH3CO2H in sample
mass of CH3CO2H in sample (g)
mass % of CH3CO2H in vinegar
*Have the results of your three trials checked by me before proceeding.
Average mass percent of CH3CO2H(aq) _____________
This sheet replaces Question 1 of the Post-lab. You may be asked to show specific
examples of some of your calculations used to obtain the above results.
