1.

10 grams of CaCO_(3) is completely decomposed to x and CaO. 'x' is passed into an aqueous solution containing 0.1mole of sodium carbonate. What is the number of moles of sodium bicarbonate formed? (mol. wts: CaCO_(3) = 100, NaCO_(3) = 106, NaHCO_(3) = 84)

Answer»

`0.2`
`0.1`
`0.01`
10

Solution :`underset(0.1)(CaCO_(3))rarrCaO+underset(0.1)underset("X")(CO_(2))`
`underset(0.1)(CO_(2))+Na_(2)CO_(3)+H_(2)Orarrunderset(0.2)(2NaHCO_(3))`


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