Предмет: Химия, автор: nassiananassi

!!СРОЧНО!!

Обчисліть масову частку елементів в речовинах H3PO4

sofiaverbic313: Какого конкретно элемента? Н или Р или О ?

Ответы

Автор ответа: sofiaverbic313

0

Ответ:

M(H3PO4)= 1*3+31+4*16=98 а.о.м.

w(H)=3/98 *100%=3,06%

w(P)=31/98 *100%=31,63%

w(O)=64/98 *100%= 65,31%

Объяснение:

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