Question

1) For each of the following, what is the ideal value of the van't Hoff factor, i? List them 1-4

- Mg(NO3)2

- C14H18N2O5

- (NH4)3PO4

- CaSO4

2) What is the molar mass of a non-ionizing, non-volatile solid that when 14.7 g is dissolved in water to make 100.0 mL of solution creats a solution with an osmotic pressure of 6.12 atm at 25.0 ^oC

3) What is the total vapor pressure in atm of a solution created by combining 3.46 moles of toluene and 7.25 moles of benzene at 350K? At 350K P_{vap, toluene} = 0.33 atm and P_{vap, benzene} = 0.95 atm

Answer 1