what mass of C5H12 produces 4.52^22 CO2 molecules when burned in O2?

Question

The balanced equation is C5H12 + 8O2 = 5CO2 + 6H2O
There are 5 moles of CO2 present. Is the 4.52^23 molecules for 5 moles of CO2 or for 1 mole of CO2? I can solve it if you can answer just that but a whole answer would be appreciated.

Answer 1

There are 6.0221415×10^23 molecules in 1 mole of substance.

4.52^22 molecules = 0.0750564 mole

Since 5 mole C5H12 produces 5 mole CO2 then

0.0750564 mole C5H12 produces 0.0750564 mole CO2

1 mole of C5H12 has a mass of 14x5 + 12x1 = 82 g
0.0750564 mole C5H12 has a mass of 0.0750564 x 82g = 6.1546 g