Получение ацетилена из дибромэтана<span>CH2(Br)-CH2(Br)+KOH(спирт.р-р)-->C2H2+2KBr+2H2O
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2C2H6 + 7O2 = 4CO2 + 6H2O
n(C2H6) = <span>1,4 моль
n(O2) = </span><span>1,4*7/2 = 4.9 моль
V(O2) = </span><span>4.9*22,4 = 109,76 л</span>
<span><span>K2Cr2O7</span> + <span>3<span>H2S</span></span> + <span>4 <span>H2SO4</span></span> → <span>K2SO4</span> + <span>Cr2<span>(SO4)</span>3</span> + <span>3 <span>S</span></span>+ <span>7<span>H2<span>O
</span></span></span></span><span><span>10<span>FeSO4</span></span> + <span>2 <span>KMnO4</span></span> + <span>8<span>H2SO4</span></span> → <span>5 <span>Fe2<span>(SO4)</span>3</span></span> + <span>2 <span>MnSO4</span></span> + <span>K2SO<span>4+8H2O
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