Posted by Elise on Thursday, February 19, 2009 at 8:14pm.
If the volume of 26.100 grams of chloroform has a density of 1.49 g per ml, then what is the mass? I got 18.125. Is this correct?
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 3:01am
I 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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