How to find empirical formula from percentage composition

If a compound contains 40% C, 6.7% H, and 53.3% O, how do we find its formula?

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Asked 1 week ago

1 answers

Admin User

Answered 2025 years ago

Steps: Convert % to moles: C=40/12=3.33, H=6.7/1=6.7, O=53.3/16=3.33.
Divide by smallest = C:1, H:2, O:1.
Empirical formula = CH₂O.

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