Question

The charge in coulombs of 1g ion of N3- is

Answer 1

Q=ne

n- represents no of electron.

e -represents the charge of electron.

1 mole - 14 gm of N3- ions

1 gm - 1/14 mole

1 gm- 1/14 * 6.022*10^23 atoms

1 atom of N3- have (7 +3) =10 electrons

therefore, 1 gm n^3- have 10* 1/14*6.022*10^23 electron

Q = (10*1/14*6.022*10^23)*(1.6*10^-19)= Answer

Answer 2

Answer:

2.89×10^5 coulomb

Explanation:

Charge on 1 mole of electrons=96500 coulomb

Charge in N^-3 means charge in 3 electrons

Charge in 1g ion means charge in 1 mole

Therefore the answer is 96500×3×1

=289500 coulomb

=2.89×10^5 coulomb