# AP Chemistry

0.015 moles of a compound are dissolved in 18 fl. oz. of water. At what temperature will the solution begin to freeze? The density of water is 1.00g/mL

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1. Convert 18 fl oz to grams and to kg. 1 oz = 28.35 grams.

molality = mols/kg solvent
Solve for molality.

Then delta T = Kf*m
You know Kf and m, solve for delta T, then subtract from zero C to find the new freezing point.

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posted by DrBob222
2. what will be mass of 0.015 moles of sodium hydroxide sulphet where the molar mass of sodium hydroxide 120g/moles.

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posted by kabiru

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