Question

Calculate the number of moles of magnesium present in a magnesium ribbon weighing 12g.Molar atomic mass of magnesium is 24g mol-1.​

Answer 1

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Explanation: The number of moles of magnesium present in a magnesium ribbon weighing 12 g is 0.5 mole. The given mass of the magnesium ribbon is 12 g. Hence, the number of moles will be 0.5 mole.