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aiko45
@aiko45
July 2022
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m(H2)-5г m(O2) -5г m (H2O)-?
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wasurenagusa
2H2 + O2 = 2H2O
n = m/M
n(H2) = 5/2 = 2,5 моль = n(H2O)
n(O2) = 5/32 = 0,15625 моль
n(H2O) = 0,15625*2 = 0,3125 моль
считаем по недостатку, т.е. по кислороду:
m(H2O) = 0,3125*18 = 5,625 г
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Answers & Comments
n = m/M
n(H2) = 5/2 = 2,5 моль = n(H2O)
n(O2) = 5/32 = 0,15625 моль
n(H2O) = 0,15625*2 = 0,3125 моль
считаем по недостатку, т.е. по кислороду:
m(H2O) = 0,3125*18 = 5,625 г