1. Name the following ionic compounds, specifying the charge 3. Explain why Roman numerals must be included in the names
of any transition metal cations.
a. Fel2 iron(!) iodide
c. CrCl2 chromium (1) chloride
d. Cus
2. Name the following covalent compounds:
a. As205
C. PAS
d. P4010
b. MnF3manganese (flouride
copper sulphate
e. SeO2
f. PC13
b. Sila
of MnO2 and Mn2O7. Name both of these compounds.
4. Identify how many fluorine atoms are in one molecule of
sulfur hexafluoride.

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