a, VO\(_2\) = 0,15 . 22,4 = 3,36 lít
b, V\(CO_2\) = \((\dfrac{48}{44}).22,4\approx24,43\) ( lít )
c, \(V_{SO_2}=\left(\dfrac{16}{64}\right).22,4=5,6\) ( lít )
\(V_{H_2}=\left(\dfrac{18.10^{23}}{6.10^{23}}\right).22,4=67,2\) ( lít )
=> \(V_{hh}=5,6+67,2=72,8\) ( lít )
Bài 31:
a, mFe\(_2\)O\(_3\) = 0,4. 160 = 64( g )
b, \(m_{CO_2}=\left(\dfrac{14,56}{22,4}\right).44=28,6\) ( g )
c, \(m_{O_2}=\left(\dfrac{1,2.10^{23}}{6.10^{23}}\right).32=6,4\) ( g )