Question

Calculate the freezing point and boiling point of a solution that contains 57.0 g NaCl and 53.4 g KBr dissolved in 750.3 mL H2O

Answer 1

moles NaCl = grams/molar mass = ??
moles KBr = grams/molar mass = ??
Add moles NaCl + moles KBr.
molality = total moles/kg solvent
delta T = i*Kf*molality
i = 2

delta T = i*Kb*molality
i = 2

Answer 2

thanks