Tuesday
September 16, 2014

Homework Help: Chemistry

Posted by Bailey on Wednesday, November 7, 2012 at 4:21pm.

I am stuggling with my chemistry experiment.
I am given thr following:
The reaction of citric acid and sodium bicarbonate is written as
H3C6H5O7(aq) + 3NaHCO3(aq) --> Na3C6H5O7(aq) + 3H2O(l) + 3CO2(g)

1.) Mass of cup A, water, and stirrer = 54.3 g
2.) Mass of sodium bicarbonate = 1.00g
3.) Mass of citric acid = .76g
4.) Total Mass = 56.06g
5.) Total Mass after reaction= 55.63g
6.) Differnece 0.43g

I'm asked to calculate the theoretical yield of carbon dioxide from 1.00g of sodium bicarbonate. And to calculate the precentage yield in the plastic cup A.

I am totally lost and don't know how to even begin to set up equations to solve. Any help appreciated.

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