Magnesium fluoride is used in the ceramics and glass industry. What is the mass of 1.72 mol of magnesium fluoride?
A)43.3 g
B)62.3 g
C)74.5 g
D)92.9 g
E)107 g

Question

Quizplus · Accepted Answer

The molar mass of magnesium fluoride (MgF2) is approximately 62.3 g/mol (Mg = 24.3 g/mol, F = 19 g/mol, so MgF2 = 24.3 + 2*19 = 62.3 g/mol). Therefore, the mass of 1.72 mol of MgF2 is 1.72 mol * 62.3 g/mol = 107 g.

Magnesium Fluoride Is Used in the Ceramics and Glass Industry