25. When a sample of baking soda is stronglylenited in a crucible, it – InterviewSolution

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25. When a sample of baking soda is stronglylenited in a crucible, it suffered a loss in weightof 3.1g. The mass of baking soda is1) 16,8 g2) 8.4g3) 1164) 4.2g

Answer»

The reaction is:

2NaHCO3 ----------> Na2CO3 + CO2 + H2O

=> 2* 84 = 168 gm.

CO2 and H2O => 44 + 18 => 62 gm.

Just divide them we get,

=> 168/62 = 8.4 gm approx.

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