Question

1) Calculate the freezeing point (Tf) of an aqueous solution 0.50m (molal) of BaCl2. (Usea: kf=1.86 C/m)

2) Is true that the solubility of a substance:

a. always depend of the temperature

b. depend of the intermolecular forces that are presents.

c. is an exothermic process

d. all the options are correct

3) What atmospheric pressure, in units atm, is necessary for the solubility of CO2 in water to be 0.22 mol/L?

Answer 1