بِسْـــمِ اللَّهِ الرَّحْمَــنِ الرَّحِيْمِ
...
Mr = (n × Ar H) + (n × Ar O)
Mr = (2 × 1) + (1 × 16)
Mr = 2 + 16
Mr = 18 g/mol
وَاللَّهُ عَالَمُ بِاالصَّوَافَ
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بِسْـــمِ اللَّهِ الرَّحْمَــنِ الرَّحِيْمِ
...
Mr = (n × Ar H) + (n × Ar O)
Mr = (2 × 1) + (1 × 16)
Mr = 2 + 16
Mr = 18 g/mol
...
وَاللَّهُ عَالَمُ بِاالصَّوَافَ