Calculate the number of moles of magnesium present in a magnesium ribbon weighing 12 g. Molar atomic mass of
magnesium is .
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Biology Foundation for Class 10.
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Answer:
Weight of a sample in grant = Number of moles × Molar mass
Atomic mass of Mg
24 g of Mg = 1 mol
12 g of Mg = 12/24 = 0.5 mol