the total number of electrons in 4.2g of N3- ion is(NA IS THE AVAGARDO NO.)
1)2.1 NA
2)4.2 NA
3)3NA
4)3.2NA
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4
The answer of this question is 3 NA
Hemantsoni:
Explain it.....
Wrong answer
3 NA is correct
n-3 ion has 10 electrons. 4.2g n3 ion will be 0.3 mole. 1 mole will have 10× 6.022×10^23 (na) electrons so 0.3 mole will have 10× na × 0.3 so the answer is 3.. i miss calculated it before
Answered by
0
Answer:
3 na
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