Ile tlenu zużyto do całkowitego spalenia butanu, jeśli powstało 22 g dwutlenku węgla?
Butan: C₄H₁₀
2C4H10 + 13O2---->8CO2 + 10H2O
13 moli O2 ---- 352g CO2
X moli --- 22g
X=0,8125 mola O2
Można też na gramy:
1 mol --- 32g O2
0,8125 mola --- X
X=26g O2
I na dm3:
32g ---- 22,4dm3
26g --- X
X=18,2dm3 O2
mO₂=32u
mCO₂=44u
2C₄H₁₀ + 13 O₂---->8CO₂ + 10H₂O
13*32g O₂------8*44g CO₂
xg O₂-----------22g CO₂
x = 26g O₂
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2C4H10 + 13O2---->8CO2 + 10H2O
13 moli O2 ---- 352g CO2
X moli --- 22g
X=0,8125 mola O2
Można też na gramy:
1 mol --- 32g O2
0,8125 mola --- X
X=26g O2
I na dm3:
32g ---- 22,4dm3
26g --- X
X=18,2dm3 O2
mO₂=32u
mCO₂=44u
2C₄H₁₀ + 13 O₂---->8CO₂ + 10H₂O
13*32g O₂------8*44g CO₂
xg O₂-----------22g CO₂
x = 26g O₂