1) Br-CH2-CH2-CH2-CH(Br)-CH3
2) в приложении
3) CH3-CH2-CH(CH3)-CH2-OH
4) CH3-C(CH3)2-CH2-CH2-CH2-CH3 (C8H18)
2C8H18 + 25O2 = 16CO2 + 18H2O
n = m/M = V/Vм
n(C8H18) = 18/114 = 0,158 моль
n(O2) = 0,158*25/2 = 1,97 моль
V(O2) = 1,97*22,4 = 44,21 л
V(возд) = 44,21/0,21 = 210,53 л
5) 2C2H5OH + 2Na = 2C2H5ONa + H2
m(C2H5OH)ч = 150*0,96 = 144 г
n(C2H5OH) = 144/46 = 3,13 моль
n(H2) = 3,13/2 = 1,57 моль
V(H2) = <span>1,57*22,4 = 35,06 л</span>
Объяснение:
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1) <span>CH4+Cl2=CH3Cl+HCl</span>
2) <span>CH3Cl+H2O=CH3OH+HCl</span>
3) <span>CH3OH=HCOH+H2</span>
Zn(OH)2+2HCl+2H2O
m(Zn(OH)2)=4.5г
M=65.5+(16+1)*2=99.5
n= m/M=4.5/99.5=0.045моль
m(HCl)=n*M=2*0.045*(1+35.5)=3,285г