Answer : The number of molecules of
and
are,
and
respectively.
Explanation :
Combustion reaction : It is defined as the reaction in which the hydrocarbon react with oxygen to give carbon dioxide and water as a product.
The given hydrocarbon is,
![C_4H_8](https://img.qammunity.org/2019/formulas/chemistry/middle-school/ve7kzjtbutttlkn980011rxzt9x3kmqncb.png)
The balanced combustion reaction will be,
![C_4H_8+5O_2\rightarrow 4CO_2+4H_2O](https://img.qammunity.org/2019/formulas/chemistry/middle-school/8ld2ceojybvzr1m1pasn560wmsvmfltoo6.png)
In this reaction,
and
are the reactants and
and
are the products.
By the stoichiometry we can say that, 1 mole of
react with 5 moles of
to give 4 moles of
and 4 moles of
.
In terms of molecules we can say that, 1 mole contains
number of molecules.
In the given reaction, there are
number of molecules of
,
number of molecules of
,
number of molecules of
,
number of molecules of
.
Therefore, the number of molecules of
and
are,
and
respectively.