A 2 0 g sample of a mixture containing sodium carbonate

Last updated: 7/2/2023

A 2 0 g sample of a mixture containing sodium carbonate sodium bicarbonate and sodium sulphate is gently heated till the evolution of CO ceases The volume of CO2 at 750 mm Hg pressure and at 298 K is measured to be 123 9 mL A 1 5 g of the same sample requires 150 mL of M 10 HCI for complete neutralization Calculate the percentage composition of Na SO4 in the original mixture