Question

Total number of valence electron in 4.2g n3- ions are

Answer 1

4.2 ÷ 14 = 0.3 moles
0.3 × 6.02 × 10^23 × 8
= 14.448 × 10 ^23


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Answer 2

The total number of valence electrons in 4.2 grams of nitride ion is
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