6 2 g of a sample containing Na CO3 NaHCO3 and non volatile

Last updated: 7/3/2023

6 2 g of a sample containing Na CO3 NaHCO3 and non volatile inert impurity on gentle heating loses 5 of its weight due to reaction 2NaHCO3 Na CO3 H O CO Residue is dissolved in water and formed 100 mL solution and its 10 mL portion requires 7 5 mL of 0 2 M aqueous solution of BaCl for complete precipitation of carbonates Determine weight in gram of Na CO3 in the original sample B 1 59 1 06 053