Also known simply as formula weight. It is the sum of the atomic weights of the component atoms when a compound is expressed by a chemical formula. It is used instead of molecular weight for compounds such as sodium chloride (NaCl) that are difficult to recognize as individual molecules. Source : Heibonsha Encyclopedia About MyPedia Information |
単に式量とも。一つの化合物を化学式で示したときのその成分原子の原子量の和をいう。塩化ナトリウムNaClのような,単独の分子の存在を認め難いものなどに対して,分子量の代りに用いる。
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