atom azota

Submitted by danijela on Fri, 05/30/2014 - 16:49
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koliko atoma azota ima u 6,5g natrijum -azida NaN3? odg 1,8*10<23 hvala

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Dino - Fri, 05/30/2014 - 17:45

Mr(NaN3)=65

65g------------->3*6*1023atoma N

6.5g------------->x 

x=1.8*1023atoma