一定量的甲烷不完全燃烧生成CO,CO2和H2O,已知产物的总质量为49.6g,其中有水25.2g.
求1 参加反应的甲烷为多少克
2 若这些甲烷完全燃烧,则生成CO2为多少克?
人气：495 ℃ 时间：2019-11-15 01:57:35
解答
1.11.2g由氢原子守恒,得n(CH4)=25.2/18)*2/4=0.7mol甲烷的质量=16*0.7=11.2g2.30.8g 根据碳原子守恒,0.7mol甲烷生成0.7mol二氧化碳,二氧化碳的质量为0.7*44=30.8g 如果你是初中生的话,或许你看不懂上面的那么你看下...
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