The number of moles of magnesium present in a magnesium ribbon weighing $12 g$ is ______
(molar atomic mass of magnesium is $24$ g/mol):

0.5

mole

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1

mole

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2

mole

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0.25

mole

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Solution

The correct option is A $0.5$ mole
As we know, number of moles $= \frac{W e i g h t}{M o l e c u l a r W e i g h t} = \frac{12}{24} = 0.5$ mol

Suggest Corrections

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