Question

Help me pleaseee

C3H8 (g) + 5 O2 (g)
->
3 CO2 (g) + 4 H2O (9)

1. Use stoichiometry to determine how many moles of O2 are needed
to completely react with 2.25 moles of C3H8.

Answer 1

Answer: 11.25 moles of
`O_2` will be required to completely react with 2.25 moles of
`C_3H_8`.

Step-by-step explanation:

The balanced chemical equation is:

`C_3H_8(g)+5O_2(g)\rightarrow 3CO_2(g)+4H_2O(g)`

According to stoichiometry :

1 mole of
`C_3H_8` require = 5 moles of
`O_2`

Thus 2.25 moles of
`C_3H_8` will require=
`(5)/(1)* 2.25=11.25moles` of
`O_2`

Thus 11.25 moles of
`O_2` will be required to completely react with 2.25 moles of
`C_3H_8`.