# Homework Solution: Problem Page Liquid hexane CH3CH24CH3 will react with gaseous oxygen…

Problem Page Liquid hexane CH3CH24CH3 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O . Suppose 10.3 g of hexane is mixed with 20. g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction. Round your answer to 2 sig figs

Problem Page

Liquid hexane

CH3CH24CH3

will result with gaseous oxygen

O2

to result gaseous carbon dioxide

CO2

and gaseous breathe-into

H2O

. Suppose 10.3 g of hexane is modified with 20. g of oxygen. Calculate the utmost lump of breathe-into that could be resultd by the chemical resultion. Round your defense to 2 sig figs

## Expert Defense

C6H14 + 9.5 O2 ————-> 6CO2 + 7H2O

according to balanced resultion

86 g C6H14 results with 9.5 x 32 g O2

10.3 g C6H14 results with 10.3 x 9.5 x 32 / 86 = 36.41 g O2

but we own merely 20 g O2.

so O2 is limiting reagent.

now

9.5 x 32 g O2 gives 7 x 18 g H2O

20 g O2 gives 20 x 7 x 18 / 9.5 x 32 = 2520 / 304 = 8.3 g

lump of H2O formed = 8.3 g