C5H12
w(H)=1*12/72=0,17
С6H6
w(H)=1*6/78=0,08
СH4
w(H)=4*1/16=0,25
C4H10
w(H)=1*10/58=0,17
Наибольшая в метане
CuSO4 + Mg -> MgSO4 + Cu
Cu(+2) + SO4(-2) + Mg(0) -> Mg(+2) + SO4(-2) + Cu(0)
Cu(+2) + Mg(0) -> Mg(+2) + Cu(0)
MgSO4 + 2NaOH -> Mg(OH)2↓+ Na2SO4
Mg(+2) + SO4(-2) + 2Na(+) + 2OH(-) -> Mg(OH)2↓ + 2Na(+) + SO4(-2)
Mg(+2) + 2OH(-) -> Mg(OH)2↓
Mg(OH)2 -> MgO + H2O
MgO + H2SO4 -> MgSO4 + H2O
MgO + 2H(+) + SO4(-2) -> Mg(+2) + SO4(-2) + H2O
MgO + 2H(+) -> Mg(+2) + H2O
XL 2mol
2NH3+H3PO4=(NH4)2HPO4
44.8L 1mol
x=44.8·2/1=89.6L
M = M*n
n = N/N a = 2 моль
m = 72 г
V = Vm * n = 89,6 л