Question

When 2.5 mol of O2 are consumed in their reaction, ________ mol of CO2 are produced

Answer 1

The given question is incomplete. The complete question is:

The combustion of propane (C3H8) in the presence of excess oxygen yields
`CO_2` and
`H_2O`

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

When only 2.5 mol of
`O_2` are consumed in order to complete the reaction, ________ mol of
`CO_2` are produced.

Answer: Thus when 2.5 mol of
`O_2` are consumed in their reaction, 1.5 mol of
`CO_2` are produced

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 :

5 moles of
`O_2` produce = 3 moles of
`CO_2`

Thus 2.5 moles of
`O_2` will produce =
`(3)/(5)* 2.5=1.5` moles of
`CO_2`

Thus when 2.5 mol of
`O_2` are consumed in their reaction, 1.5 mol of
`CO_2` are produced