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Nội dung: <blockquote data-quote="tuhuuvi" data-source="post: 97271" data-attributes="member: 149089"><p><span style="font-family: 'Times New Roman'"> <span style="font-size: 15px">Chào bạn!zô vấn đề luôn nha</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">1) ancol X: CnH2n+2Ox + (3n+1-x)/2 O2 </span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'"> nCO2 + (n+1)H20</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">                       0.2    </span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'">            0.2(3n+1-x)/2</span></span></p><p><span style="font-family: 'Times New Roman'"> <span style="font-size: 15px">   nO2=0.8=0.2(3n+1-x)/2</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'">n=(7+x)/3</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">Chú ý: 2ancol đa+ Cu(OH)2 </span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'"> dd lam</span></span></p><p><span style="font-family: 'Times New Roman'"> <span style="font-size: 15px">            (2 nhóm OH liền kề)</span></span></p><p><span style="font-family: 'Times New Roman'"> <span style="font-size: 15px">         số nhóm OH trong ancol < hoặc = số ngtu C áp dụng cho CnH2n+2O</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">với x=1 </span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'">n=8/3 (loại)</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">      x=2</span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'">n=3 (nhận) n luôn nguyên  </span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'"> C3H8O</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">2X + Cu(OH)2 </span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'"> ddlam</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">0.1 </span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'"> 0.05</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'"> mCu(OH)2 =0.05*98=4.9(g)</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">2)nH2O>nCO2 </span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'">hh X :no, mạch hở</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">Cttb 2 ancol là: CnH2n+2Ox   </span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'"> nCO2 + (n+1)H2O</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">n/(n+1)=3/4 </span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'">n=3 </span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'">C2H4(OH)2    C4H8(OH)2</span></span></p><p><span style="font-family: 'Times New Roman'"> <span style="font-size: 15px">3) dạng phenol td được vs NaOH</span></span></p><p><span style="font-family: 'Times New Roman'"> <span style="font-size: 15px">3 chất </span></span></p><p><span style="font-family: 'Times New Roman'"> <span style="font-size: 15px">o-crezol m-crezol p-crezol</span></span></p><p><span style="font-family: 'Times New Roman'"> <span style="font-size: 15px">4)</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">dX/Y=1.6428</span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'">hchc Y la anken :CnH2n</span></span></p><p><span style="font-family: 'Times New Roman'"> <span style="font-size: 15px">X: CnH2n+2O</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">(14n+18)/14n=1.6428</span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'">n=2</span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'">C2H4</span></span></p><p><span style="font-family: 'Times New Roman'"> <span style="font-size: 15px">5)</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">Đun 2 ancol </span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'"> tạo thành 3 ete </span></span></p><p><span style="font-family: 'Times New Roman'"> <span style="font-size: 15px">nCO2=nH2O=0.4(mol)</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'">ete có dạng CnH2nO  </span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'"> nCO2 +(n+1)H2O</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">                            0.4/n      </span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">ç</span></span><span style="font-family: 'Times New Roman'"> 0.4</span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">7.2/(4/n)=14n+16</span><span style="font-family: 'Wingdings'"><span style="font-family: 'Wingdings'">è</span></span><span style="font-family: 'Times New Roman'">n=4 </span></span></p><p> <span style="font-size: 15px"><span style="font-family: 'Times New Roman'">tới đây thôi bạn tự giải nge hình như thiếu j đó không suy ra được 2 ancol     </span></span></p></blockquote><p></p>

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