Question

No. Of electrons present in one milimole of ammonia

Answer 1

no. of molecules of ammonia in 1 mole= 6.022x10^23
no. of atoms in one molecule of ammonia=3+1=4
no. of atoms in 1 mole ammonia=(6.022x10^23) x 4=2.4088x10^24

Answer 2

The no. of electrons present in one millimole of ammonia is 6.022 × 10^21.

Given:

One millimole of ammonia.

To Find:

No. of electrons present in one milimole of ammonia.

Solution:

To find the number of electrons present in one millimole of ammonia we will follow the following steps:

As we know,

Ammonia is NH3

And,

number of electrons in 1 molecule of NH3 = electrons in nitrogen + electrons in three hydrogen = 7 + 3×1 = 10

Also, 1 mole contains 6.022 × 10²³ molecules

Molecules present in 1 millimole = 6.0millimole³ × 10^-³ = 6.022 × 10^20.

Now,

No. of electrons present in one milimole of ammonia in one molecule × total numbmillimolecules in one millimoles = 10 × 6.022 ×millimole 6.022 × 10^21.

Henceforth, the no. of electrons present in one millimole of ammonia is 6.022 × 10^21.