Quantitatively transfer the dissolved calcium carbonate solution to a 25 mL volumetric flask. Using a water bottle, add DI water to the volumetric flask until the volume reaches 25.00 mL. Safety First The pH 10 buffer is 10 M ammonia. Keep it under the fume hood as much as possible and avoid breathing its vapors. Wear your goggles! Hint Calculate the mass of disodium dihydrate (CAS 6381- 92-6) needed for the preparation of your stock EDTA solution. The molar mass of EDTA is 372.24 g/mol. EDTA Titrations 28 3. Transfer one 5.00 mL aliquot of the CaCO3 solution to a 125 mL or 250 mL Erlenmeyer flask.

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