C6H6+Br2(кат FeBr3)=С6H5Br+HBr Бромбензол+Бромоводород.
1) C2H5Cl+KOH=C2H4+KCl+H2O
CH3-CH2-CH(OH)-CH3=CH3-CH=CH-CH3+H2O
2 реакция так Na был 0 стал +1 и Водород + стал 0
Ответ:
дано
m(ppa CH3COOH) = 200 g
W(CH3COOH) = 40 %
+V(H2O) = 300 mL
-------------------------------
W1(CH3COOH)-?
m(CH3COOH) =200 * 40% / 100% = 80 g
m(H2O) = m(ppa CH3COOH) - m(CH3COOH) = 200 - 80 = 120 g
p(H2O) = 1 g/mL
m1(H2O) = p(H2O) * V(H2O) = 300 * 1 = 300 g
m1(ppa CH3COOH) = m(ppa CH3COOH) + m1(H2O) = 200 + 300 = 500 g
W1(CH3COOH) = m(CH3COOH) / m1(ppa CH3COOH)*100%
W1(CH3COOH)= 120 / 500 * 100% = 24 %
ответ 24 %
Объяснение:
.......................................................