44,8m³ 2×30kg
2CH₄ + O₂ -> 2CH₂=O + 2H₂
224m³ x=300kg
300kg..........100% (randament)
y...................80%
y=300×80/100=240kg formaldehida
Aplicam formula concentratiei, pentru determinarea masei de formol (masei de solutie de formaldehida)
40/100=240/ms => ms=240×100/40=600kg formol