Question

Calculati volumul ocupat in c.n. de:
a)14 kg N2
b)15,05*1023 molecule de Cl2
c)170 g NH3
se dau masele atomice H-1;N-14
URGENT

Answer 1

Răspuns:

a) n=$\frac{V}{V_{M} }$⇒V=n*$V_{M}$; n=$\frac{m}{M}$⇒n=1 kmol; V=22,4$\frac{m^3}{kmol}$* 1 kmol=22,4m³

b) n= $\frac{V}{V_{M} }$⇒V=n*$V_{M}$; n=$\frac{15,05*10^2^3}{6,022*10^2^3}$=2,5 moli; V=22,4$\frac{l}{mol}$* 2,5 mol=56 l

c) n=$\frac{V}{V_{M} }$⇒V=n*$V_{M}$; n=$\frac{m}{M}$⇒n=10 moli; V=22,4$\frac{l}{mol}$* 10 mol=224 l

Explicație: