问题
计算题
甲醇(CH3OH)是无色有特殊气味的液体，可作燃料，其充分燃烧的化学方程式为2CH3OH+3O2点燃2CO2+4H2O。若64g的甲醇燃烧能生成多少克水？
答案
.解：设甲醇燃烧能生成水的质量为X
2CH3OH+3O2点燃2CO2+4H2O
64 72
6.4g x·······························1分
= ·····································1分
x = 7.2g ··········································1分
根据甲醇的质量利用化学方程式列比例式进行解答