Molar mass（计算分子量）&&字符转化

最新推荐文章于 2020-11-20 20:17:29 发布

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最新推荐文章于 2020-11-20 20:17:29 发布

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本文链接：https://blog.youkuaiyun.com/weixin_43105110/article/details/88081424

该博客讨论了如何计算含有碳、氢、氧、氮四种元素的有机化合物的摩尔质量。根据给出的分子式，利用标准原子重量计算出摩尔质量。文章提供了输入输出示例，并附带相关代码实现。

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题目

An organic compound is any member of a large class of chemical compounds whose molecules contain carbon. The molarmass of an organic compound is the mass of one mole of the organic compound. The molar mass of an organic compound can be computed from the standard atomic weights of the elements.
When an organic compound is given as a molecular formula, Dr. CHON wants to find its molar mass. A molecular formula, such as C3H4O3, identifies each constituent element by its chemical symbol and indicates the number of atoms of each element found in each discrete molecule of that compound. If a molecule contains more than one atom of a particular element, this quantity is indicated using a subscript after the chemical symbol.
In this problem, we assume that the molecular formula is represented by only four elements, ‘C’
(Carbon), ‘H’ (Hydrogen), ‘O’ (Oxygen), and ‘N’ (Nitrogen) without parentheses.
The following table shows that the standard atomic