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10 g mixture of NaHCO(3) and Na(2)CO(3) ...

`10 g` mixture of `NaHCO_(3)` and `Na_(2)CO_(3)` has `1.68 g NaHCO_(3)`.
It is heated at `400 K`. Weight of the residue will be

A

9.38 g

B

8.32 g

C

10.0 g

D

1.68 g

Text Solution

Verified by Experts

The correct Answer is:
A
`Na_(2)CO_(3)` is not affected by heating , `2NaHCO_(3) rarr underset("Residue")(Na_(2))CO_(3) + H_(2)O + CO_(2)`
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