Question

Q.22 6.2 g of a sample containing NaCO3, NaHCO3
and non-valatile inert impurity on heating loses 5%of
its weight due to formation of H,O and CO as in
reaction 2NaHCO3 → Na2CO3 + H2O + CO2
Residue is dissolved in water and formed 100 ml
solution and its 10 ml portion requires 4.5 ml of
0.2 M aqueous solution of BaCl, for complete
precipitation of carbonates. If number of moles of
Na CO2 in the original sample were 'q' then the
value of '100 q' is:​

Answer 1

Answer:

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