EMpirical and Molecular Formula

A forensic scientist is given a white substance that is thought to be cocaine. The substance is found to have a percent composition: 49.48% H, 5.19% H, 28.85% N, and 16.48% O. What is the empirical formula for this substance? Is it cocaine?

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asked by Yo
  1. You have H listed twice, that makes no sense to me.

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    posted by bobpursley

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