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0°C 1atm = stp
Vstp= n. 22,4
2,24 = n . 22,4
n=0,1 mol
Persamaan reaksinya:
Karena perbandingan koefisien, maka mol H2 = mol Zn = 0,1 mol
Massa= n. Mr
Massa= 0,1 . 65= 6,5 gram