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Вычислите массу вещества кальций ортофосфата количеством веществ 0,1 моль.
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Предмет:
Химия -
Автор:
valerielpmu - 5 лет назад
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Ответы 1
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Ответ: 31 г.
Объяснение:
Формула нахождения массы: m=n(кол-во в-ва)*M(молекулярная масса)
M(Ca)=40*3=120г/моль
M(P)=31*2=62г/моль
M(O2)=16*8=128г/моль
M(Ca3(PO4)2)=120+62+128=310 г/моль
m(Ca3(PO4)2)=310г/моль*0,1моль=31 г.
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Автор:
zainvilla - 5 лет назад
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