1. What is the molarity of 245g of H2SO4 dissolved in 1.00 L of solution? ( gfm = 98 g) 2. What is the molarity of 5.30g of Na2CO3 dissolved in 400.00 ml of solution? (gfm = 106 g)

3. How many moles of Na2CO3 are there in 10 L of a 2.0 Molar solution? (gfm = 106 g)

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante

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