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December 18, 2014

Homework Help: Chemistry

Posted by Komal on Monday, September 22, 2008 at 11:06pm.

ASpirin, c9h8o4, is prepared by reating salicylic acid, c7h6o3, with acetic anhydride, c4h6o3, in the reaction.

c7h6o3 + c4h6o3---> c9h8o4 + c2h4o2

A student is told to prepare 45.0 g of aspirin. she is also told to use a 55.0 % excess of acetic anhydride and to expect to get an 85.0 % yield in the reaction. how many grams of each reactant should she use?

ther's one more question.

the combustion of liquid chloroethylene, c2h3cl , yields carbon dioxide, steam, hydrogen chloride gas.

-- if 25.0 g of chloroeothylene reacts with an excess of oxygen, how many grams of each product are formed.

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