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A compound contains 50% of X (atomic ma...

A compound contains `50% ` of X (atomic mass 10)and `50%` Y (atomic mass 20) . Give its molecular formula .

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`:.` The Empirical Formula is `X_(2)Y`
Empirical Formula mass = 20 + 20 = 40
Molecular mass = Sum of atomic mass = 40
n = 1, `:.` Molecular formula = `("Empirical Formula")_(n)` = `(X_(2)Y)_(1) X_(2)Y .`
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