作者walk0123 (誓言)
看板Chemistry
标题[学科] 普通化学问题~ 气体方面..
时间Sat Nov 10 00:05:00 2007
在0.959atm和298K状态下，一个由C和H所组成的样本
在燃烧之後，可以得到一1.51atm和375K的CO2和H2O的混合气体，
此混合气体的密度是1.39g/L
且混合物的气体体积是原来纯碳氢化合物的4倍，
问碳氢化合的分子式?
答案是C2H6。
要如何计算~????
原始题目如下!
Consider a sample of a hydrocarbon(a compound consisting of only carbon and hydrogen) at 0.959 atm and 298 K.
Upon combusting the entire sample in oxygen,
you collect a mixture of gaseous carbon dioxide and water vapor at 1.51 atm and 375K.
This mixture has a density of 1.391 g/L and occupies a volume four times as large as that of the pure hydrocarbon.
Determine the molecular formula of the hydrocarbon.
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