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2014-10-01T13:33:40+03:00
H2O ---> H2 + 1/2 O2
1 mol H2O........2 g H
4 moli H2O.......x g H      x = 8 g H
3 H2 + N2 ---> 2 NH3
3 * 2 g H.........2 moli NH3
8 g H................. x moli NH3      x = 2,6666 moli