Antacid Effectiveness by Back Titration

Antacid Effectiveness by Back Titration - Walgree ns active...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Antacid Effectiveness by Back Titration Jenine Hajjar October 29, 2007 Professor Lloyd Chem 110 Sect. C Purpose
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The objective of the experiment was to determine the neutralization capacity of two different commercial antacid tablets by using the back titration method. Procedure Refer to page 25 laboratory notebook for the Antacid Effectiveness by Back Titration lab. No changes were made to the original procedure. Calculations Summary of Results
Background image of page 2
Molarity of NaOH: __.1__ Molarity of HCl: __.1__ commercial antacid Tums active ingredient CaCO 3 mmoles of H + reacted/g sample 2.079 mmoles active ingredient/g sample 4.09 mg active ingredient/g sample 409 mg active ingredient/tablet 528.02 commercial antacid
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Walgree ns active ingredient CaCO 3 mmoles of H + reacted/g sample 1.928 mmoles active ingredient/g sample 3.78 mg active ingredient/g sample 378 mg active ingredient/tablet 489.13 Conclusion The purpose of the experiment was achieved by performing a back titration in order to determine the neutralization capacity of two different commercial antacid tablets. Percent composition of active ingredient in Tums was 41% and in Walgreens brand it was 38%. Possible sources of error would be to add to much NaOH to the HCl solution or not enough thymol blue, therefore disturbing the results of the experiment. No data was discarded....
View Full Document

Page1 / 3

Antacid Effectiveness by Back Titration - Walgree ns active...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online