nH2=nMg=5,6/22,4=0,25 moli Mg ⇒ mMg= 0,25*24=6g Mg
Mg + H2SO4 => MgSO4 + H2↑
ce este N ?
1mol Mg.........................6,023*10^23 molecule
0,25 moli Mg.................x=1,5*10^23 molecule=15*10^22 molecule
nH2=nH2SO4 = 0,25 moli H2SO4 => m=0,25*98=24,5g H2SO4
Cp=md/ms*100=>ms=24,5*100/3=816,666g sol. H2SO4
ro=1,12g/mol sau 1,12g/cm3 ?
ro=m/V=>V=816,666/1,12=729,16cm3= 0,7291L