Question

1.5g of C2H6 on complete combustion give 4.4g of co2 and 2.7g of H2o. show that the reaction abeys law of conservation of mass. ​

Answer 1

Answer:

yes, it holds good.   hope the explanation helps.

Explanation:

A normal combustion of alkanes is,

CnH2n+2   +   ((3n+1)/2) O2 --------> nCO2   +   (n+1) H2O

                C2H6   +     7/2O2 -------------------->      2CO2   +    3H2O

mass;-           30                 112                                  88               54

   if we take 1.5g of C2H6,

then,       30g c2h6 ---------    88g of co2

               1.5g c2h6 ---------   ?

========> 1.5 x 88/ 30 = 4.4g of co2       ( hence proved)

              30g c2h6 ---------  54g of h2o

              1.5g c2h6 ---------- ?

========> 1.5 x 54/30 = 2.7g of h20       (hence proved)

therefore law of conservation of mass holds good..  :-)

                                                                              -- "nikhilvannoj" 's insta