Question

In the chemical formula 3NO2 the number 3 is a

Answer 1

Answer : The number '3' is a moles.

Explanation :

The given chemical formula is,
`3NO_2`

As we know that,

For 1 mole of
`NO_2`, there are 1 mole of nitrogen and 2 moles of oxygen.

For 3 mole of
`NO_2`, there are 3 moles of nitrogen and 6 moles of oxygen.

So, from this we conclude that the number '3' present before
`NO_2` represent the number of moles.

Hence, the number '3' is a moles.