1)
mH2=2u
mO2=32u
mH2O=18u
2H2 + O2 ---> 2H2O
4g H2 ----- 36g H2O
xg H2 ----- 300g H2O
x = 33,33g H2
32g O2 ----- 36g H2O
xg O2 ----- 300g H2O
x = 266,67g O2
2)
mMg=24u
2Mg + O2 ---> 2MgO
48g Mg ----- 32g tlenu
10g Mg ----- xg tlenu
x = 6,67g tlenu
m=6,67
d=1,43g/dm3
v=m/d
v=6,67/1,43
v = 4,66dm3 tlenu
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1)
mH2=2u
mO2=32u
mH2O=18u
2H2 + O2 ---> 2H2O
4g H2 ----- 36g H2O
xg H2 ----- 300g H2O
x = 33,33g H2
32g O2 ----- 36g H2O
xg O2 ----- 300g H2O
x = 266,67g O2
2)
mMg=24u
mO2=32u
2Mg + O2 ---> 2MgO
48g Mg ----- 32g tlenu
10g Mg ----- xg tlenu
x = 6,67g tlenu
m=6,67
d=1,43g/dm3
v=m/d
v=6,67/1,43
v = 4,66dm3 tlenu