calculate the necessary amounts of solutes and solvent to make a 4 liter bottle of antifreeze that will have a 35 degree change in freezing point of water. solutes are Al2(SO4)3, KBr, Mg(NO3)2

Answer 1

delta T = i*Kf*molality
Solve for molality

molality = moles/kg solvent
solve for moles

moles = grams/molar mass
Solve for grams.
Go through the above for each solute.
i for Al2(SO4)3 = 5
i for KBr = 2
i for Mg(NO3)2 = 3