Question

Calculation of the strength of na2co3 and nahco3 in a mixed titration

Answer 1

25ml of a mixture of Na2co3 and NaHCO3 is titrated with (N/20) HCl solution. In presence of phenolphthalein indicator the solution requires 20.5 ml HCl . ... The volume of HCl used to titrate each 25mL of Na2CO3 is of 50mL.