the total number of electrons in 4.2 g of N3- ion is -----------
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the total no. of electron in 4.2 g of N3 is 3NA
ravichandrand30:
How
i dont no
the answer is correct
how u got it ?
mass n3 ion= 14 g/ mol so, 4.2 g × 1 mol / 14 g = 0.3 mol n3 , no of n3 ions = 0.3 mol N3 no of N3 ions - 0.3 mol × 6.02 × 10^23 ion
each N3 ion has 8 valency electrons so total no. of valence electrons is 1.8×10^23 ×8
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