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32g (O₂)---22,4 dm³
xg -------2 dm³
x=2,86g (O₂)
b) 0,2 kilomola kwasu siarkowego(VI)
0,2 kilomola=200 moli
1mol(H₂SO₄)---98g
200 moli----- xg
x=19600g = 19,6 kg
c) 6 moli azotu cząsteczkowego
1 mol (N₂)---28g
6 moli----- xg
x=168g