# 2. Vitamin K is involved in the blood clotting mechanism. When 0.500 g of Vitamin K is dissolvedin 10.0 g of camphor (kfp 40.0 °C/m), the freezing point is lowered by 4.43 °C. Calculate themolecular weight of vitamin K. 3. The true molecular weight of vitamin K is 450.70 g/mol. Calculate the percent error in yourexperimental determination from Problem 2.

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Asked Dec 1, 2019
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## Expert Answer

Step 1

Since there are multiple questions, we are authorized to answer only the first question. If you need the answer of the other question, please post it separately again.

Step 2

The depression or lowering in freezing point is expressed as:

Step 3

Given,

Mass of Vitamin K (solute) = 0.5 g

Mass of camphor (solvent) = 10.0 g = 0.01 kg     (1g = 0.001 kg)

Lowering in freezing point, △Tf = 4.43 oC

Freezing point d...

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