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6. Chemical Composition

6. Chemical Composition / Mass Percent / Problema 11

Problema 11

Given a compound with a formula C₂H₅OH, calculate the mass percent of oxygen. (Atomic masses: C = 12 g/mol, H = 1 g/mol, O = 16 g/mol)

A

52.1%

B

45.3%

C

34.7%

D

21.7%