Дано:
m(Ar)=80 г n(Ar) = m(Ar) / M(Ar) = 80 / 40 = 2 моль
М(Ar) = 40 г/моль V(Ar) = Vm * n(Ar) = 22,4 л/моль * 2 моль = 44,8 л
Vm=22,4 л/моль
Найти:
V(Ar)=?
А)NaCl=Na⁺+Cl⁻
б)NaI=Na⁺+I⁻
в)FeI3=Fe³⁺+3I⁻
г)MgBr=Mg²⁺+Br²⁻
CaCO3 = CaO + CO2
CaO + 3C = CaC2 + CO
CaC2 + 2H2O = C2H2 + Ca(OH)2
C2H2 + H2O = CH3COH
CH3COH + 2Cu(OH)2 = CH3COOH + Cu2O + 2H2O
CH3COOH + CH3CH2CH2OH = CH3COOCH2CH2CH3 + H2O
2CH4 = C2H2 + 3H2
C2H2 + HCl → CH2=CHCl
n(CH2=CHCl) → (-CH2-CHCl-)n
2CH4 = C2H2 + 3H2
3C2H2 = C6H6
C6H6 + Br2 →(AlBr3)→ C6H5Br + HBr
C6H5Br + H2O → C6H5OH + HBr