What mass of carbon dioxide, water, and sulfur dioxide can be produced from the combustion of 1.5793g of C7H12S?

Answer 1

RMM of C7H12S = 128 (approx.)
Mass = 1.5793g

Mass of Carbon
= 1.5793*(84/128)
=1.036416 g
Mass of Carbon Dioxide
= 1.03642 g *(44/12)
= 3.80019 g
= 3.8002 g (to 5 significant figures)

Since the original mass is given to 5 significant figures, you will need to replace the relative atomic masses above with ones of similar accuracy.

The calculation of H2O and SO2 are similar.

Answer 2

the h20 and s02 you do not have any carbon though to work with it?

Answer 3

You would replace carbon with H and CO2 with H2O, similarly for S and SO2.