9. a A Cube made of a hard wood has a density of 0.75g/cm^3. If you have 10f of the sample how big is the cube? B. In a density column with gasoline, water, and corn syrup, where would this wooden cube end up?

10. a A rock has a density of 2.72 g/ml. If it displaces 0.05 liters of water, what is the mass of the rock?

b. In a cylinder of corn syrup, water, and gasoline, where would this rock end up?

answer : (a) volume of the gas = 8.67 ×   l

                (b) second virial coefficient b = -1.21226 l/mole

solution :   given,     t = 300k

                                p = 20atm

                                z = 0.86

                                n = 8.2 mmoles = 8.2 × moles

                                r =   0.082 l atm/k/mol

        find,     (a) volume of gas   and (b) second virial coefficient b at 300k.

formula used :            

                          and            

(a)            

                    = \times 0.082\times 300}{20}[/tex]

                    = 8.67 ×   l

(b)      

                    = (0.00867-1) × 8.659

                    = - 8.5839 l/mole