Here are the solutions:
1) Calcuate the molality when 75.0 grams of MgCl2 is dissolved in 500.0 g of solvent.
2) 100.0 grams of sucrose (C12H22O11, mol. wt. = 342.3 g/mol) is dissolved in 1.50 L of water. What is the molality?
3) 49.8 grams of KI is dissolved in 1.00 kg of solvent. What is the molality?
