10moli....v............y...........x
C5H8+7O2-->5CO2+H20
1..........7×22,4...5×44......4
punctele nu trebuie puse
a)
[tex]v = \frac{10 \times 22.4 \times 7}{1} = 1568 \: l[/tex]
V aer=5V=5×1568=7840 l
b)
[tex]x = \frac{4 \times 10}{1} = 40 \: moli[/tex]
c)
[tex]y = \frac{10 \times 5 \times 44}{1} = 2200g[/tex]
d)n=m/M=>m=n×M=10×68=680g
e)
[tex]n = \frac{v}{vm} = > v = n \times vm = > \\ v = 10 \times 22.4 = 240 \: l[/tex]
