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yerzhanova0
@yerzhanova0
August 2021
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Рассчитайте какой объем водорода выделится при взаимодействии с водой кальция массой 10 г
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Verified answer
Ca + 2H20
= Ca(OH)2 + H2
n(Ca) = 10/40 = 0.25 (моль) n=m/M
V(H2) = 0.25*22.4 = 5.6 (дм
³) V=n*Vm
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Answers & Comments
Verified answer
Ca + 2H20 = Ca(OH)2 + H2n(Ca) = 10/40 = 0.25 (моль) n=m/M
V(H2) = 0.25*22.4 = 5.6 (дм³) V=n*Vm