CH3-CH2-OH( тут стрелка, а над стрелкой - катализатор и температура)
CH2=CH-CH=CH2+2Н2О+Н2
H2C(OH)-CH2(OH)+2HCl=H2CCl-CH2Cl+2H2O
H2CCl-CH2Cl+2KOH=C2H2+2KCl+2H2O
3C2H2=C6H6
C6H6+Cl2=C6H5Cl+HCl
C6H5Cl+KOH=C6H5OH+KCl
C6H5OH+3HO-NO2=C6H2(NO2)3OH+3H2O
V(PH3) = 112 л
n(PH3) = 112/22.4 = 5 моль
N(PH3) = 5 * 6.02 * 10²³ = 31 * 10²³ молекул