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A compound's molar mass is 240g/mol. its percentage composition is 75% carbon, 5.05% hydrogen and 19.95% oxygen, what is the molecular formula?
explanation please

Respuesta :

The molecular formula of the compound is C15H12O3.

What is the molecular formula of the compound?

The molecular formula of the compound is determined from the mole ratio of the elements in the compound.

Carbon = 0.75 × 240/12 = 15

Hydrogen = 0.0505 × 240/1 = 12

Oxygen = 0.1995 × 240/16 = 3

Therefore, the molecular formula of the compound is C15H12O3

In conclusion, the molecular formula of the compound is determined from the mole ratio of the elements and their percentage composition.

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