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Calculate the mass percentage of aspirin...

Calculate the mass percentage of aspirin `(C_(9)H_(8)O_(4))` in acetonitrile `(CH_(3)CN)` when `6.5g` of `C_(9)H_(8)O_(4)` is dissolved in `450g` of `CH_(3)CN`.

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Mass percentage of aspirin
`("Mass of aspirin")/("Mass of aspirin+ Mass of acetonitrile")xx100`
`=(6.5)/(6.5+450)xx100=1.424%`
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