9. AgBr can be made with the reaction below. If a chemist starts with 45.0 6 points grams of AgNO,, how many grams of CaBr must be added to use up all of
the AgNO,? Hint: convert grams to moles and moles to grams *
2AgNO3 + CaBr2 →AgBr +CaN206
O A. 0.265 grams
B. 22.5 grams
C. 26.6 grams
D. 199.9 grams

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

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