The percentage of C,H,O in vitamin C were determined by burning a sample weighing 2.00g. The masses of carbon dioxide and water formed are 3.00mg and 0.81mg respectively. Find the percentage of each element and the empirical fomula of vitamin C

Answer 1

I got about half way through the problem and discovered you've made a typo somewhere. I suspect that's supposed to be 2.00 mg and NOT 2.00g.
Check your figures and repost.

Answer 2

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