2Na + 2H2O = 2NaOH + H2
n(Na) = m/M= 2.3/23 = 0.1 моль
Из уравнения реакции n(NaOH) = 0.1 моль
m(NaOH) = n*M = 0.1*40 = 4 г
2Al+6HCl=2AlCl3+3H2
m(HCl)=100*0.073=7.3(г) - чистой к-ты.
Nv(HCl)=7.3/36.5=0.2(моль)
Nv(H2)=Nv(HCl)/2=0.1(моль)
V(H2)=0.1*22.4=2.24(л)
1) CH2 = CH - CH3 + H2 CH3 - CH2 - CH3
2)CH2 = CH - CH3+Cl2 ClCH2 - CH (Cl) - CH3
3)CH2 = CH - CH3+HСl CH3—CH(Cl)—CH3
4)CH2 = CH - CH3 + H2O CH3 - CH(OH) - CH3