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Empirical & Molecular Formula

A compound co...

Question

A compound contains two elements 'X' and 'Y' in the ratio of $50 %$ each. Atomic mass of 'X' is 20 and 'Y' is 40. What can be its simplest formula?

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X_{2} Y

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X Y_{2}

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X_{2} Y_{3}

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Solution

The correct option is B $X_{2} Y$
Element mass% Atomic mass(g) Moles Integral ratio
X 50 20 2.5 2
Y 50 40 1.25 1
Simplest formula is $X_{2} Y$ .

Hence, option $B$ is correct.

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The simplest formula of a compound containing $50 %$ of element X (atomic mass 10) and $50 %$ of element Y (atomic mass 20) is

The simplest formula of a compound containing 50% of element X (atomic mass = 10g/mol) and 50% of element Y (atomic mass 20g/mol) is:

The simplest formula of a compound containing $50 %$ of element X (atomic mass 10) and $50 %$ of element Y (atomic mass 20) is

X

Y

X Y_{2}

X_{2} Y_{3}

0.05

X Y_{2}

5

3.011 \times 10^{23}

X_{2} Y_{3}

85

X

Y

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