原帖由 EternalLove 於 27/1/2007 15:59 發表 把32.0g的氧和16.0g的氫混合燃燒,剩餘的氣體的體積是多少(在常溫常壓下)? (相對原子質量:H = 1.0,O = 16.0;在常溫常壓下,氣體的摩爾體積 24.0 dm^3 mol^-1 Reaction: O2 +2H2--->2H2O
Mole of O2 =32/ (16+16) =1 mol
Mole of H2= 16/ (1+1) = 8 mol
So, O2is the limited agent (所以產物量被O2所限制) <---中文大概是這樣寫吧= =
Amount of H2left= 8-(1*2) =6 mol
Volume of the gas left = 6*24 dm^3
= 144 dm^3 Assumption: All O2are used up and the H2Omolecules are in liquid form
很久沒計這些了~囧 (希望沒錯= =||) |