Question

mass of nitrogen present in 4.6 g of NO2 is

Answer 1

Answer:

actually is the question correct..I think it is 46g/mol

Answer 2

Answer:

The mass of nitrogen present in 4.6g of NO₂ is 1.4g.

Explanation:

Given, the mass of  $NO_{2}$ is 4.6g

Now, we need to find the mass of nitrogen present in 4.6g of $NO_{2}$ .

The atomic mass of N = 14

The atomic mass of O = 16

Molecular Mass of $NO_{2}$ = Atomic mass of N + (2×Atomic mass of O)

                                       = 14 + 2*16 = 46u

Now we need to find the number of moles,

$Number of moles = Given mass/Molecularmass$

Given Mass = 4.6g

so, no. of moles = 4.6/46 = 0.1moles

Mass of nitrogen in 1 mole of NO₂ is = 14g

Mass of nitrogen in 0.1 mole of NO₂ is = 0.1×14g = 1.4g

The mass of nitrogen present in 4.6g of NO₂ is 1.4g.