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mol当たりの質量であるモル質量を使い、質量と物質量を単位ごと相互変換します。","\u002Fhigh-school\u002Fbasic-chemistry\u002Famount-of-substance-and-equations\u002Fmolar-mass-and-mass-conversion","\u002Fhigh-school\u002Fbasic-chemistry\u002Famount-of-substance-and-equations","beginner","student_high",6,"2026-07-28","ai_generated",[17,18,19,20,21],"化学基礎","モル質量","質量","物質量","単位換算",[23,24,25],"分子量と式量","物質量mol","比例計算","化学式からモル質量を定め、単位を確認しながら質量と物質量を相互変換できるようになる。",[28,34,43,70,76,85,106,112,118,134,143],{"id":29,"type":30,"title":31,"subtitle":32,"shortDefinition":33},"hero","HeroBlock","はかれる質量からmolを知る","gと粒子の世界をモル質量でつなぐ","モル質量は物質1 mol当たりの質量で、単位はg\u002Fmolです。質量をモル質量で割れば物質量、物質量にモル質量を掛ければ質量になります。",{"id":35,"type":36,"term":18,"definition":37,"plainExplanation":38,"keywords":39},"definition","DefinitionBlock","ある物質1 molの質量を表す量で、通常g\u002Fmolを単位として用います。","H₂Oの分子量は18.0で無単位ですが、H₂Oのモル質量は18.0 g\u002Fmolです。同じ数値になるのは、相対質量の尺度とmolの定義が対応するためです。計算では物質名と化学式を確認し、1 mol当たり何gかを決めてから換算します。",[40,41,42],"1 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