Question

21 gram magnesium chloride have how many moles in magnesium

Answer 1

This is a question from stoitiometry


Amount of magnesium chloride given = 21 gram

Moles of magnesium chloride = mass / molar mass

Molar mass of magnesium chloride = 95g/mol

Moles of magnesium chloride = Amount of magnesium chloride /molar mass

Moles of magnesium chloride = 21 /95

Moles of magnesium chloride = 0.22 mol

Balanced equation :-

Mg + Cl2 ---------> MgCl2

It means 1 mole magnesium forms 1 mole magnesium chloride

Then

0.22mole magnesium chloride will be formed from 0.22 mole of magnesium


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