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22,4dm3--- 30g
2,24dm3---X
X=2,24x30/22,4=3g
Masa gazów w pierwszym naczyniu wynosi 3g
b)etan Mc2h6=30g
6,02x10²³---30g
6,02x10 22potegi---X
X=6,02x10 22 potegi x30/6,02 x 10²³=3g
Masa gazów w 2 naczyniu wynosi 3g