Question

How much coulomb charge is present on 1g ion of $N^{3-}$
Note: 1 mole of electrons have a charge of 96500 C.

• A. $5.2\times {10}^6$ Couloumb
• B. $2.894\times {10}^5$ Couloumb
• C. $6.6\times {10}^6$ Couloumb
• D. $8.2\times {10}^6$ Couloumb

Answer 1

The correct option is B $2.894\times {10}^5$ Couloumb

One mole of the nitride ion has 3 moles of electrons. So we multiply 3 with 96500 and thats the answer.