Asked by Anna
                Freezing point of pure water = -2, Freezing point of Unknown solution = -1 
Mass of unknown in 50g of water = 1.9964g. Calculate the delta T for the solution of the unknown solid and determine the molecular weight of the unknown solid.
            
        Mass of unknown in 50g of water = 1.9964g. Calculate the delta T for the solution of the unknown solid and determine the molecular weight of the unknown solid.
Answers
                    Answered by
            DrBob222
            
    Freezing point is supposed to go down. It went up. Bad data. Means nothing to me.
    
                    Answered by
            Anna
            
    If it had gone down then how would we calculate it 
    
                    Answered by
            DrBob222
            
    delta T = Kf*m
Substitute for delta T and Kf and solve for m = molality
<b>In your case delta T is +1 and kg solvent is 0.050.</b>
m = mols/kg solent
You have m and kg solvent; solve for mols.
mol = grams/molar mass. You have mol and grams, solve for molar mass.
    
Substitute for delta T and Kf and solve for m = molality
<b>In your case delta T is +1 and kg solvent is 0.050.</b>
m = mols/kg solent
You have m and kg solvent; solve for mols.
mol = grams/molar mass. You have mol and grams, solve for molar mass.
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