Предмет: Химия, автор: алена2г

рассчитать массовые доли элементов в карбонате натрия

Ответы

Автор ответа: svetka1574

0

Na2CO3

W(C) = Ar(C) *n / Mr(Na2CO3) * 100% = 12 *1 / 106 *100% = 11,32

W(Na) = Ar(Na)* n / Mr(Na2CO3) * 100% = 23 *2 / 106 *100% = 43,39%

W(O) = Ar(O) *n / Mr(Na2CO3) *100% = 16 *3 / 106 * 100% = 45,28%

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