Neutralizing Power of Antacids
Data, Calculations, and Results
(Note: This template should be completed electronically and inserted into your formal lab report for this
experiment. Alone, it does NOT comprise your entire report, and you should be able to create one
complete document with content prior to and after this section. Also, make every effort to format tables
and equations so that they are not split between pages. If you must split a table, please use a note to
indicate that it is continued on a subsequent page. You should delete this note as part of your editing. )
Part I Data:
Molarity of NaOH used
Part II Data:
TRIAL
VOLUME OF HCl
TITRATED
INITIAL BURET READING
(mL OF
M NaOH)
FINAL BURET READING
(mL OF
M NaOH)
1
2
3
Part II Calculations:
EQUATION
TRIAL 1 EXAMPLE
Moles of NaOH used
in titration of
25.00 mL of
‘stomach acid’
Molarity of
stomach acid
Average Molarity of
stomach acid
Part II Results:
TRIAL 1
TRIAL 2
TRIAL 3
mL of NaOH(aq) added
Moles of NaOH
Molarity of “stomach acid”
Average Molarity of stomach acid
Part III Data
Brand of Antacid used
Amount of Antacid used
Recommended dose of Antacid
# of doses per package
Price of Antacid
Total Volume of HCl added
Part III Calculations
EQUATION
EXAMPLE
Total number of moles of
acid added to the antacid
Part III Results
Total volume of acid added to antacid
Total number of moles of acid added to the antacid
Part IV Data
TRIAL
1
mL OF ANTACID
SOLUTION
TITRATED
INITIAL BURET
READING
(mL OF
M NaOH)
FINAL BURET READING
(mL OF
M NaOH)
2
Part IV Calculations
EQUATION
Moles of acid in excess in
each titration (per pipette)
Excess molarity of acid
Total number of moles
of acid in excess
Total number of moles
of acid neutralized by
one tablet or teaspoon
of antacid
Average moles of acid
neutralized by one tablet or
teaspoon of antacid
Moles of acid
neutralized per dose
Doses of antacid per dollar
cost of antacid
EXAMPLE
Moles of acid neutralized
per $1.00
Part IV Results
TRIAL 1
TRIAL 2
Moles of acid in Excess
Excess molarity of HCl
Total number of moles of acid in excess
Total moles of acid neutralized by one tablet or
teaspoon of antacid
Average number of moles of acid neutralized by one
tablet or teaspoon of antacid
Average number of moles of acid neutralized
per dose of antacid
Doses of antacid per dollar
Moles of acid neutralized per $1.00
Antacid Information
Antacid
Rolaids
Tums
Active Ingredients
550 mg CaCO3 and
110 mg Mg(OH)2
per tablet
500 mg CaCO3
per tablet
Price
Quantity
Dose
$4.99
150 tablets
3 tablets
$5.79
150 tablets
3 tablets
Mylanta
Maalox
Milk of
Magnesia
200 mg Al(OH)3
200 mg Mg(OH)2
per teaspoon
200 mg of
Mg(OH)2
200 mg of Al(OH)3
per teaspoon
400 mg of
Mg(OH)2
per teaspoon
$6.29
12 fluid ounces
3 teaspoons
$5.89
12 fluid ounces
3 teaspoons
$6.49
12 fluid ounces
2 teaspoons
Cost Effectiveness Comparison:
(Use class average information here and use package information to calculate theoretical values
here. Delete this note and the arrows.)
Antacid
Rolaids
Tums
Mylanta
Maalox
Milk of Magnesia
average
experimental
neutralizing
capacity per
dollar
theoretical moles
HCl neutralized
per dose
theoretical
neutralizing
Capacity per
Dollar
percent
difference