Homework Help: chemistry 2

Posted by Anonymous on Thursday, January 13, 2011 at 7:56pm.

how many grams of calcium nitrate need to be dissolved in 250 mL of water to form a solution that has a freezing temperature of -3.2 degrees C

chemistry 2 - DrBob222, Thursday, January 13, 2011 at 9:54pm
delta T =i*Kf*molality
Solve for molality. i = 3

m = mols/kg solvent
Solve for moles.

moles = grams/molar mass
Solve for grams.

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