chem assignment 10

Experiment 10

EFFICIENCY OF ANTACIDS

Data Collection and Results Pages Name: __________________________ Date: ___________________

Part I:

Concentration of HCl = ________ Volume of HCl (stomach acid) = __________

Part II:

Identity of active ingredients of the antacids:

Tums: ______________________________________________

Baking Soda: _________________________________________

Mass of Tums sample = ________________

Mass of baking soda sample = ________________

Part III:

Concentration of NaOH = _________

Tums Baking soda

Initial Buret Reading of NaOH

Final Buret Reading of NaOH

Volume of NaOH used

(subtraction – volume cannot be negative!)

Volume of stomach acid neutralized by NaOH

(equal to volume of NaOH used)

Tums = _____________

Baking soda = ____________

Experiment 10: EFFICIENCY OF ANTACIDS

2

Volume of stomach acid neutralized by antacid

(volume of stomach acid not neutralized by NaOH)

Tums = _____________

Baking soda = ____________

Volume of acid neutralized for every gram of antacid used:

(units should be in mL/g, so take your volume and divide by mass)

Show your calculations.

Tums: Baking soda:

Tums = _____________

Baking soda = ____________