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Homework Help Forum: Chemistry
Posted by Rose on Friday, October 16, 2009 at 3:32pm.
A 2.85g sample of an unknown chlorofluorocarbon is decomposed and produces 560mL of chlorine gas at a pressure of 754mmHg and a temperature of 298K .
What is the percent chlorine (by mass) in the unknown chlorofluorocarbon?
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- Chemistry - DrBob222, Friday, October 16, 2009 at 4:13pm
PV = nRT calculates n.
Then n = grams/molar mass. You know molar mass and n, calculate grams Cl2.
Then %Cl2 = [grams Cl2/grams sample]*100
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