- #1
John Ker
- 16
- 1
Homework Statement
Hello, I am currently attempting to complete a lab report involving the calculation of the total amount of CaCO3 in an unknown antacid tablet. This was done by calculating the pressure inside a flask before the reaction, then relating it to the pressure after the reaction.
The first lab report question is as follows:
Let’s say the % concentrations of CaCO3 (Table 6 lab results) you obtain from trial #1 and #2 are in good agreement. These two trials were run as described in the lab manual without any problems you can assume the pressures and temperatures were measured correctly. For trial #3, consider a small leak occurring after the addition of HCl to the standard calcium carbonate/antacid (you can assume the initial pressure is measured correctly but the final pressure is not). How would this impact the % concentration of CaCO3 calculated? Consider separately both a leak occurring during the trial #3 with the standard CaCO3, and trial #3 with the unknown antacid. Explain in detail your rational.
Homework Equations
[/B]
NA
The Attempt at a Solution
How would a leak during the release of the gas during the experiment affect the pressure? Since pressure is greater on the outside of the flask, air would consequently rush in. How does this affect the experiment?
Last edited by a moderator: