Question

The reaction between nitric oxide and oxygen formed nitrogen dioxide. (a) How many moles of nitrogen dioxide formed by the complete reaction of 0.25 mol of O2?

Answer 1

Answer : The number of moles of nitrogen dioxide is 0.50 moles.

Solution : Given,

Moles of $O_2$ = 0.25 moles

The Balanced chemical reaction is,

$2NO+O_2\rightarrow 2NO_2$

From the chemical reaction, we conclude that

1 mole of $O_2$ gives 2 moles of $NO_2$

0.25 moles of $O_2$ gives $\frac{2moles}{1moles}\times 0.25 moles=0.50$ moles of $NO_2$

Therefore, the number of moles of nitrogen dioxide formed by the complete reaction is 0.50 moles.