Question

How many molecules of nitrogen dioxide would form from 2 molecules of no?

Answer 1

2 molecules of nitrogen dioxide would form from 2 molecules of NO.

Explanation:

Data given:

molecule of NO given = 2

molecules of nitrogen dioxide formed = ?

Avagadro number = 6.022 X $10^{23}$ molecules

atomic mass of NO = 30 gram/mole

atomic mass of N$O_{2}$ = 46 grams/mole

balanced chemical reaction is given by:

2NO + $O_{2}$ ⇒ 2N$0_{2}$

to convert the molecules into moles, we use the formula:

moles = $\frac{number of molecules}{Avagadro number}$

the number of moles are same in the reaction for both reactant and product which means that 2 moles of NO reacts to form 2 moles of NO2.

thus when moles remain same, number of molecules are also same.

1 molecule = one mole x Avagadro's number