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How much CO2 and H2O can be produced by concentration of 3.0g of C2H6?

How much CO2 and H2O can be produced by concentration of 3.0g of C2H6?

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Grade:11

1 Answers

dorice
13 Points
3 years ago
2C2H6  + 7O2  ------------4CO2 +6H20
BUT H=1.0
       C=12.0
       O=16.0
Mass of ; 2C2H6 =24+6=30g
             O2 =32g
            CO2 =44g
            H2O =18
The mass of 1 mole of C2H6 =30g
Number of moles in 3.0g =3.0/30=0.1moles
Therefore the mass of CO2 produced is calculated as follows;
   from the chemical equation 2moles of C2H6 has 0.1moles
                                4 of CO2 = 4*0.1/2= 0.2moles
         then 1mole of CO2 has 44g, therefore ; 0.2*44/1 =8.8g
 
moles in water can be calculated as ; from the original equation 6*0.1/2 =0.3moles
                          18*0.3/1=5.4g
hence quantity/concentration  of water can only be measured in litre/cubic centimeter/ cubic decimeter.Therefore H2O has 5.4g/l

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