posted by krystal on .
How many moles of aspirin are present in 100 mg of aspirin? Enter your answer in scientific notation.
or should it be rounded to 5.6?
I have 5.5507E-4. You are allowed 3 s.f. from the 100 so I would round that to 5.55E-4. I think you shorted yourself 1 place that you should keep.
If allowed only two s.f. I would have rounded to 5.6E-4.