Antacid Information Table FS/2014

Antacid

Active Ingredients (mg)

Recommended Minimum Dosage

Price($) / (#tablets)

Mylanta

700 mg CaCO3 + 300 mg Mg(OH)2

1 tablet

$4.93 / 70 tablets

Tums*

500 mg CaCO3

1 tablet

$3.99 / 150 tablets

Rolaids

550 mg CaCO3 + 110 mg Mg(OH)2

1 tablet

$3.44 / 150 tablets

 

 

 

 

Equate

160 mg Al(OH)3 + 105 mg MgCO3

1 tablet

$3.82 / 100 tablets

Maalox

600 mg CaCO3

1 tablet

$4.77 / 85 tablets

Baking Soda*

Pure NaHCO3 = 1000 mg

0.5 tsp. or 1.0 gm.

$ 0.56 / 16 oz.


* do these by direct titration also

Standard acid and base used:

Section(s)

HCl molarity

NaOH molarity

 

 

 

 

 

 

Titrations:

Do either Gp I or Gp II-3 antacids assigned by TA. Obtain data for the other 3 antacids from another group.
Do all 3 as back titrations and 1 as a direct titration (either Tums or NaHCO3, depending on your assigned group)

Report:

Objective, Procedure, Results, Conclusions

Tables:

Basic cost & composition data
Titration data, calculated results
Calculate percent yield as mg HCl required to titrate/theoretical mg HCl required to titrate x 100%
e=chemical efficiency = percent yield/100

Graphs:

Results expressed as effectiveness in mg HCl neutralized per dollar and as mg HCl per tablet