Question
Express your answer numerically in grams.
What is the mass of 8.60 moles of magnesium chloride, MgCl2?
mass of MgCl2
Answers
Start by finding the gram molar mass of MgCl2, look it up! it is 95.211 g/mol.
Now multiply moles of MgCl2 by the gram molar mass to get grams of MgCl2.
(8.60 moles) x (95.211 g/mol) = 818.81 grams of MgCl2
= 819 grams of MgCl2 with proper sig figs.
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