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Chemistry
Physical Chemistry
Colligative Properties
Find the molecular mass of a solute by freezing point depression.
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1) The molecular mass of a substance was determined by the freezing point depression technique. The minimum data required for
Top answer:
Yes, if we can assume the solute is not ionic, then it isn't necessary to know the identity of the
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Find the molecular mass of a solute by freezing point depression. Solvent: para-dichlorobenzene Freezing point of pure solvent:
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delta T = Kf*molality. Calculate molality. molality = moles/kg solvent. Calculate moles. moles =
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Molecular Mass by Freezing point Depression (Preliminary Lab)
The following errors occurred when the above experiment was carried
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I gave you the answer for a from your first post. For #2. (1) delta T = Kf*m (2) molality = moles
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1) The molecular mass of a substance was determined by the freezing point depression technique. The minimum data required for
Top answer:
Responded to a later post.
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1) The molecular mass of a substance was determined by the freezing point depression technique. The minimum data required for
Top answer:
b is correct. I've responded to a before. Your answer is not right. Frankly, I'm not sure the
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The molecular mass of a substance was determined by the freezing point depression technique. The minimum data required for the
Top answer:
delta T = dT = i*Kf*m m = mols/kg solvent moles solute = g solute/molar mass solute Working
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An unknown solute (a nonelectrolyte) was obtained and 5.37 g was weighed out. After dissolving the solute in water, the mass of
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delta T = i*Kf*molality First, I don't know about the value you show for Kf for water. It is 1.86
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Derive a formula for the molar mass of the solute in terms of the freezing point depression, deltaT, the freezing-point
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I think what you need to do is as follows: delta T = Kf*molality molality = mols solute/kg solvent
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I did an experiment to determine the freezing point depression and then find the molecular weight of the unknown solute added to
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of course it changes, that is a no brainer. But how does this affect the mol mass determined?
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In BHT Freezing Point Depression Lab:
The following errors occurred when the above experiment was carried out. How would each
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I made a typo in equation 1. I should have written delta T = (Tfinal-Tinital) = Kf*m but that
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