Posted by mm on Wednesday, February 20, 2013 at 5:14pm.
ΔTf = m*Kf*i, solving for molaity,
ΔTf/*Kf*i= m
molality= moles of solute/kg of solution.
Since, 1 mole= molecular weight,
I think decreasing the number of moles decreases the molecular weight.
But I can not be sure about this one.
(1) delta T = i*K*m
(2) m = mols/kg solvent
(3) mols= g/molar mass or
molar mass = g/mols.
T read too low makes delta T too high in 1. That makes m too high.
2. m too high in 2 means mols too high.
3. mols too high in 3 means molar mass too low.
I agree with Devron.
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