Answer the following questions: * How is the chemical formula determined for an ionic compound?

* How are the ionic compounds named using IUPAC nomenclature rules?

1. The chemical formula is determined by first finding the positive charge, which is cation, and then finding the negative charge, which is the anion. The cation is writing first, than the anion.

2.An ionic compound is named first by its cation and then by its anion.

Explanation:

Just did it.

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