Question

C3H8 + 5O2 → 3CO2 + 4H2O How many moles of H2O are formed if 5 moles of propane react with oxygen gas?

Answer 1

ratio game
look at coefficients before propane and H2O compounds
its 1 for propane and 4 for H2O right?
so this is the ratio
1:4
so lets see 1 propane is 5 mole
now how much is 4?
1-5
4- X
X= 4*5 = .....mole of H2O

@aaronq am i getting this questing right?

Answer 2

yes thank you

Answer 3

The easiest way to see it if you make fractions

\(\sf \dfrac{moles~of~propane}{1}=\dfrac{moles~of~water}{4}\)

\(\sf \dfrac{5}{1}=\dfrac{moles~of~water}{4}\)

moles of water = \(\sf \dfrac{5*4}{1}\)

Answer 4

4Fe + 3O2 → 2Fe2O3, if 8 moles of iron and excess oxygen from the air were available, how many moles of iron (III) oxide would be produced?
need help ?

Answer 5

@aaronq

Answer 6

well its same thing lol

Answer 7

^it is the same thing, make the fractions/ratios first

Answer 8

thank you