1.

When a sample of baking is strongly ignited in a crucible, it suffered a loss in weight of 3.1 g. The mass of baking soda is

Answer»

`16.8g`
`8.4g`
`11.6g`
`4.2g`

Solution :`underset(2xx84g)underset("BAKING SODA")(2NaHCO_(3))OVERSET(Delta)rarrNa_(2)CO_(3)+underset(62g)underset("Loss of WEIGHT")ubrace(H_(2)O+CO_(2))`


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