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Calculate the amount of water produced by 16g of Methane by combustion.

Combustion reaction for methane is given as :-
CH4 + 2 O2 = CO2 + 2 H2O
So from the law of mass action it is evident that :-
16g of methane  reacts with 64g of oxygen to give 36g of water
Hence, 16g of methane produces 36g of water.

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  1. CH4     +   2 O2   =    CO2     +    2 H2O

              1 mol        2mol         1mol         2mol                  ( by avagardo hypothesis )

now 16g of methane is 1 mol of methane

thus amount of water in 2 mol =  2 * 18 = 36g

so 16g of methane produces 36g of water.              

 

               

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