Flue gas problem solving needed

Question

Hi,

 

Can anyone help me with these excercises.

 

The car consumes benzine 8 liters per 100km (8l/100km). How to calculate 80 km journey's exhaust fumes total mass. 

 

Benzine's density is 0.75 kg/dm³

 

The combustion reaction is 2 C₈H₁₈ + 25 O₂ => 16 CO₂ + 18 H₂O

 

 

Answer 1

The reaction that you show, 2 C8H18 + 25 O2 => 16 CO2 + 18 H2O is for the combustion of OCTANE, not that for benzene. It isn't clear from the problem how the consumption of benzene is related to the combustion of octane.