Question

Дано: |
m(P)-3.1г. |
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Найти:V(O2)-?

Answer 1

4P + 5O2 = 2P2O5
1) n(P) = m/M = 3.1/31 = 1
2) n(O) = 1,25
3) M(O2) = 32
4) m(O2) = 32 *1,25 = 15