Только последнюю задачу (5). Created by woodibirds. himiya-ru

Только последнюю задачу (5)...

woodibirds @woodibirds

September 2021 1 38 Report

Только последнюю задачу (5)

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Tizifona

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2Al + 6HCl --> 2AlCl3 + 3H2
1) n(Al) = 27г : 27г/моль = 1моль
2) 2n(Al) -- 3n(H2)
1 моль -- ? моль
n(H2) = 1моль × 3 : 2 = 1,5моль
3) m(H2) = 1,5моль × 2г/моль = 3г

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