2CH4 (1500°)= C2H2 + 3H2
3C2H2 (t,Cakt,p)= C6H6
C6H6 + Cl2 (AlCl3)= C6H5Cl + HCl
C6H5Cl + NaOH(сп)= C6H5OH + NaCl
1
[H+] * [OH-]= <span><span /></span><span><span><span><span /></span></span></span><span><span><span><span /></span></span></span><span><span><span><span><span><span><span><span><span><span><span /></span></span></span></span></span></span></span></span></span></span>10^ -14
[H+] = <span><span><span /></span></span><span><span><span><span><span /></span></span></span></span><span><span><span><span><span /></span></span></span></span><span><span><span><span><span><span><span><span><span><span><span><span /></span></span></span></span></span></span></span></span></span></span></span><span>10^ -14 / </span><span>10^ -9 =</span>10^ -5 <span>моль/л СРЕДА СЛАБОКИСЛАЯ</span>
2/
[OH-] = <span><span /></span><span><span><span><span /></span></span></span><span><span><span><span /></span></span></span><span><span><span><span><span><span><span><span><span><span><span /></span></span></span></span></span></span></span></span></span></span>10^ -14 / 10^ -2 =10^ -12 моль/л СРЕДА <span>КИСЛАЯ
метилоранж красный
</span>
3.
[H+] = <span /><span><span><span /></span></span><span><span><span /></span></span><span><span><span><span><span><span><span><span><span><span /></span></span></span></span></span></span></span></span></span>10^ -14 / 10^ -5 =10^ -9 моль/л
рН = -lg[H+] = 9 среда щелочная
лакмус - синий
0.5 л = 500 мл
14% от 500 мл:
(500/100)*14 = 70 мл
p = 1.13 г/мл ==> m(p-pBaCl2)= 1.13 * 70 = 79.1 г
Ag + Cl2 = AgCl
2Na + 2H2O = 2NaOH + H2
NaOH + HCl = NaCl + H2O
2NaCl + BaSo4 = Na2SO4 + BaCl2
2H2 + O2 = 2H2O
H2O + CaO = Ca(OH)2
Ca<span>(HCO3)2 + </span>Ca<span>(</span>OH<span>)</span>2<span> → 2</span>CaCO3<span>↓ + 2H2O</span>