Bài 44: Rượu etylic
Hướng dẫn Giải Bài 3 (Trang 139, SGK Hóa học 9)
<p>Có 3 ống nghiệm:<span class="mce-nbsp-wrap" contenteditable="false"> </span>Ống 1 đựng rượu etylic;</p>
<p><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span> Ống 2 đựng rượu etylic <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>96</mn><mo>°</mo></math>;</p>
<p><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span><span class="mce-nbsp-wrap" contenteditable="false"> </span> Ống 3 đựng nước.</p>
<p>Cho Na dư vào các ống nghiệm trên, viết các phương trình hóa học/</p>
<h3 style="text-align: center;">Giải</h3>
<p><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Ố</mi><mi>n</mi><mi>g</mi><mo> </mo><mn>1</mn><mo>:</mo><mo> </mo><mn>2</mn><msub><mi>C</mi><mn>2</mn></msub><msub><mi>H</mi><mn>5</mn></msub><mi>O</mi><mi>H</mi><mo>+</mo><mn>2</mn><mi>N</mi><mi>a</mi><mo>→</mo><mn>2</mn><msub><mi>C</mi><mn>2</mn></msub><msub><mi>H</mi><mn>5</mn></msub><mo>-</mo><mi>O</mi><mi>N</mi><mi>a</mi><mo>+</mo><msub><mi>H</mi><mn>2</mn></msub><mo>↑</mo><mspace linebreak="newline"/><mi>Ố</mi><mi>n</mi><mi>g</mi><mo> </mo><mn>2</mn><mo>:</mo><mo> </mo><mn>2</mn><mi>N</mi><mi>a</mi><mo>+</mo><mn>2</mn><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi><mo>→</mo><mn>2</mn><mi>N</mi><mi>a</mi><mi>O</mi><mi>H</mi><mo>+</mo><msub><mi>H</mi><mn>2</mn></msub><mo>↑</mo><mspace linebreak="newline"/><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mn>2</mn><msub><mi>C</mi><mn>2</mn></msub><msub><mi>H</mi><mn>5</mn></msub><mi>O</mi><mi>H</mi><mo>+</mo><mn>2</mn><mi>N</mi><mi>a</mi><mo>→</mo><mn>2</mn><msub><mi>C</mi><mn>2</mn></msub><msub><mi>H</mi><mn>5</mn></msub><mi>O</mi><mi>N</mi><mi>a</mi><mo>+</mo><msub><mi>H</mi><mn>2</mn></msub><mo>↑</mo><mspace linebreak="newline"/><mi>Ố</mi><mi>n</mi><mi>g</mi><mo> </mo><mn>3</mn><mo>:</mo><mo> </mo><mn>2</mn><mi>N</mi><mi>a</mi><mo>+</mo><mn>2</mn><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi><mo>→</mo><mn>2</mn><mi>N</mi><mi>a</mi><mi>O</mi><mi>H</mi><mo>+</mo><msub><mi>H</mi><mn>2</mn></msub><mo>↑</mo></math></p>
Hướng dẫn giải bài tập 3 ( Trang 139 SGK Hóa 9)
GV: 
GV colearn
GV colearn
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Hướng dẫn giải bài tập 3 ( Trang 139 SGK Hóa 9)
GV: GV colearn
GV colearn