Choose the mole ratio below that is INCORRECT based on the given balanced equation: 2 C2H5OH + 7 O2 --> 4 CO2 + 6 H2O

O 2 moles C2H5OH = 4 moles CO2

O 7 moles O2 = 2 moles C2H5OH

O 4 moles CO2 = 4 moles O2

O 6 moles H2O = 7 moles O2

4 moles CO₂ = 4 moles O₂

Explanation:

The reaction equation is given as;

         2C₂H₅OH + 7O₂ →  4CO₂  + 6H₂O

The incorrect mole ratio from the relationships shown is;

       4 moles CO₂ = 4 moles O₂

Number of moles of CO₂ = 4

Number of moles of O₂ = 7

 So, the right expression is;

               4 moles CO₂ = 7 moles O₂  

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml