Question

Volume of co2 obtained at stp by complete decomposition of na2co3

Answer 1

Answer:

The chemical formula of sodium carbonate (washing soda) is Na2CO3. When it is heated it undergoes a thermal decomposition reaction. This takes place above 500 degree C. The reaction of decomposition is

Na  

2

​  

CO  

3

​  

(s)→Na  

2

​  

O(s)+CO  

2

​  

(g)

The name of the first reaction product Na_2O is Sodium Oxide which is solid and used in glass making and the name of the second reaction product is Carbon Dioxide which is a gas

On calculating this reaction one might get answer 2.08 litres but as Na  

2

​  

CO  

3

​  

is soda ash and it does not decomposes at STP And CO  

2

​  

 does not evolved

So the answer will be zero litres

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