Question

Determine the percentage composition of mixture of anhydrous sodium carbonate & sodium bicarbonate from the the following data .
Wt. Of mixture taken =2 gm
Loss in weight on heating = 0.124 gm

Answer 1

Answer:

Solution : Between sodium carbonate and sodium bicarbonate, only sodium bicarbonate decomposes to given sodium carbonate, `CO_(2) and H_(2)O`. The gaseous products `(CO_(2) and H_(2)O)` escape out into the atmosphere. Therefore, an apparent loss in weight occurs during the reaction. <br> This loss in weight corresponds to the amount of gaseous products formed . Fromed the mass of gaseous products formed, amount of sodium bicarbonate in the mixture can be obtained, and thus composition of the mixture of the mixture can be found out

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