Zadanie 1
M C2H4=2*12 g+4*1 g=28 g
Dane:
m=28 g
V=22,4 dm3
Szukane:
d=?
d=m/V
Obliczenia:
d=28 g/22,4 dm3
d=1,25 g/dm3
Zadanie 2
48 u 32 u
2 Mg+O2--->2 MgO
18 g xg
48 u---32 u
18 g---xg
x=12 g
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Zadanie 1
M C2H4=2*12 g+4*1 g=28 g
Dane:
m=28 g
V=22,4 dm3
Szukane:
d=?
d=m/V
Obliczenia:
d=28 g/22,4 dm3
d=1,25 g/dm3
Zadanie 2
48 u 32 u
2 Mg+O2--->2 MgO
18 g xg
48 u---32 u
18 g---xg
x=12 g