1. Which 0.100 Molar aqueous solution at 25.00 o C will have the highest freezin

Question

1. Which 0.100 Molar aqueous solution at 25.00 oC will have the highest freezing point?

Select one:

a. sodium chloride

b. glucose

c. magnesium nitrate

d. Aluminum bromide

e. ammonium chloride

2. A solution of 2.500 g of a molecular compound dissolved in 25.00 g of benzene has a melting point of 4.30 oC. Calculate the molecular mass of the compound.

3. Calculate the vapor pressure of a 5.27 molal aqueous magnesium chloride solution at 20.00 oC. The vapor pressure of water at this temperature is 22.0 torr. Report answer in units of torr.

4. Calculate the osmotic pressure of a 2.28x10-3 M aqueous solution of protein hemoglobin at 28.41 oC. The molar mass of hemoglobin is 65,706 g/mol. Give answer in atm.

Explanation / Answer

1. 0.100 Molar NaCl solution will have highest freezing point because its low value of vant hoff factor, i.

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