Neorganska hemija

Submitted by Vuk Biljuric on Tue, 05/06/2014 - 12:30
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Koliko ima atoma azota u 816mg amonijum sulfida?

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milicaradenkovic - Tue, 05/06/2014 - 13:27

(NH4)2S

n(amonjum sulfida)=m/Mr=0.816/68=0.012 mol

n(N)=2*n(amonijum sulfida)=2*0.012=0.024 mol

N(N)=n(N)*Na=0.024*6*10(23)=1.44*10(22) atoma N