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An organic compound contains 40% carbon,...

An organic compound contains `40%` carbon, `6.67%` hydrogen and `53.33%` oxygen by mass. What is the molecular formula of the compound if its molecular mass is 180?

Text Solution

Verified by Experts


Ratio of moles of atoms , `C : H O = 1:2:1`
Empirical formula of compound `= CH _(2) O `
Empitrical formula mass `= 12 + (2 xx 1.008) + 16 = 30`
`n = ("Molar mass")/("Emprical formula mass") = (180)/( 30) = 6`
Moecular formula of compound `= (C H _(2) O ) xx 6 = C _(6) H _(12) O _(6).`
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