Question

An oxide of nitrogen has molecular weight 92 find total number of electrons in one gram mole of that oxide

Answer 1

Answer:

46N

Explanation:

For nitrogen,  

Atomic number,  Z = 7

Mass number , A = 14

Mass number / Atomic number = A/Z = 2.

For oxygen,

Z = 8

A= 16

A/Z = 2.

 

So an oxide of N, will only have N and O and hence the A/Z ratio of oxide will also be 2.

For oxide,  

A/Z = 2  

A = 92 (given)

Hence, Z = A/2 = 46.

We know,

Z is atomic number, which is number of protons. As oxides are neutral, Atomic number is same as number of electrons, = 46.

 

1 molecule of oxide has 46 electrons.

1 mole oxide has 1 N molecules, N= Avogadro number.  

Hence 1 mole / gram mole oxide has  46 N electrons.

Hence, the answer is 46N

Answer 2

Answer:

Answer is 46N I expect means my guess