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OpenStudy (anonymous):
What is the molecular formula of a compound that has a molecular mass of 81 and the empirical formula C2H3?
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OpenStudy (ipwnbunnies):
Oooo hi again. First, find the molecular mass of the empirical formula. Then, divide the real molecular mass by the empirical molecular mass. You should get a whole number. Finally, multiply the subscipts of the empirical formula by this whole number to get the molecular formula. :)
OpenStudy (anonymous):
When I tried it, I got C6H9
OpenStudy (ipwnbunnies):
Lemme get my calculator again. x_x
OpenStudy (anonymous):
Haha, Thanks I have a huge chem exam coming up and want to make sure im doing these right
OpenStudy (ipwnbunnies):
you are correct again! Yay.
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OpenStudy (anonymous):
Thanks
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