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October 2, 2014

October 2, 2014

Posted by **Elise** on Thursday, February 19, 2009 at 8:14pm.

My other question is, if the mass of an aspirin is 250 mg, then what is the mass in kg? I got, .00025. Is this correct?

Thanks, Elise

- science -
**drwls**, Friday, February 20, 2009 at 3:01amI get 17.5 ml for the volume

250 mg = 250*10^-6 kg = 2.5*10^-4 kg

Your answer is correct, but in decimal rather than scientific notation. Very small and very large numbers are better written in scientific notation, in my opinion.

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