What is the mass of 5.60 moles of magnesium chloride MgCl2?

To calculate the mass of 5.60 moles of magnesium chloride (MgCl₂), first determine its molar mass. Magnesium (Mg) has a molar mass of about 24.31 g/mol, and chlorine (Cl) has a molar mass of about 35.45 g/mol. Therefore, the molar mass of MgCl₂ is approximately 95.21 g/mol (24.31 + 2 × 35.45). Multiplying the number of moles by the molar mass, the mass of 5.60 moles of MgCl₂ is about 532.18 grams (5.60 × 95.21 g/mol).