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Charles' Law

Calculate the...

Question

Calculate the number of moles in $160$ g of oxygen molecule.

5

moles

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160

moles

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80

moles

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6.023

moles

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Solution

The correct option is A $5$ moles
Molecular weight of Oxygen = $16 \times 2$ $= 32$
Therefore number of moles = $\frac{G i v e n w e i g h t}{M o l e c u l a r W e i g h t} =$ $\frac{160}{32}$ $= 5$ moles.

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