How do I calculate the kf for cyclohexane (pure solvent)? Also how to calculate the mass...
How do I calculate the kf for cyclohexane (pure solvent)?
Also how to calculate the mass of cyclohexane in the solution (kg)?
Please let me know which information is needed in order to solve for this.
Homework Answers
Molar Mass by Freezing Point Depression:
FREEZING POINT DEPRESSION:
The introduction of a solute to a solvent will decrease the freezing point (temperature) of the solvent.
Thus, ∆ Tf α m
so, ∆ Tf = Kf Xm where Kf is the freezing point depression constant
for cyclohexane, the freezing point is 6.5 °C and Kf value 20.1°C.kg/mole.
The equation needed:
M2=KfX(W2/ ∆ TfXW1)
M2 = molar mass of solute.
Add Answer to:
How do I calculate the kf for cyclohexane (pure
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Q1:
Q2:
Here is some background for the questions:
Thank you in advance.
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Hi, I need some help with Chemistry.
Q1:
Q2:
Here is some background for the questions:
Thank you in advance.
You add 0.0336 moles of benzoic acid solute to 16.00 g of an unknown solvent, which lowers the freezing point of the solvent by 8.6 °C. Calculate the freezing point depression constant (Kf) of the unknown solvent. You dissolve 1.00 g sample of an unknown solute is in 8.00 g of lauric acid, which lowers the freezing point by 5.0...
how do i calculate yield % and pure yield %??
I know i have to balance an equation first but C7H8O-> C7H6O
does not make sense to me...
I believe benzyl alcohol is the limiting reagent
>N TEMPO O. CH2Cl2 KBr, NaOCI NaHCO3, H20 CyH2O Mol. Wt.: 108.14 I wo bp: 205°C V CyH60 Mol. Wt.: 106.12 bp: 178°C Crude data Student Data: Purified data (Silica Gel Column - see protocol for conditions) Pure mass: Not collected Pure yield: %...
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Also how to calculate the degree of unsaturatuon.
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