Test Answers

Rank these five scenarios from lowest freezing point (1) to highest freezing point (5). Each solution was made using 1.0 kg water as the solvent and the indicated number of moles of each solute. 0.5 mol NaCl 1.0 mol K3PO4 2.0 mol glucose 1.5 mol ethylene glycol 0.8 mol MgCl2

Determine the freezing point of a 0.51 molal solution of benzoic acid in chloroform. Chloroform has a freezing point of -63.5°C and a freezing point depression constant of 4.70°C•kg/mol.What is the freezing point of this solution?Round to the nearest tenth.°C

Determine the boiling point of a solution made by dissolving 0.60 mol K2SO4 in 1.0 kg water. Water has a boiling point elevation constant of 0.51°C•kg/mol.What is the boiling point of this solution?Round to the nearest tenth.°C