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Calculate the mass percentage of aspirin (C9H8O4) in

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asked Dec 14, 2017 in Chemistry by sforrest072 (157,439 points) ● 60 ● 409 ● 934

Calculate the mass percentage of aspirin (C9H8O4) in acetonitrile (CH3CN) when 6.5 g of C9H8O4 is dissolved in 450 g of CH3CN. 

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answered Dec 14, 2017 by mdsamim (213,225 points) ● 5 ● 10 ● 15
selected Dec 14, 2017 by sforrest072
 
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6.5 g of C9H8O4 is dissolved in 450 g of CH3CN. Then, total mass of the solution = (6.5 + 450) g

 = 456.5 g

                                               6.5/456.5x100%  

 Therefore, mass percentage ofC9H8O4

 = 1.424% 

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