Bài 27: Nhôm và hợp chất của nhôm
Hướng dẫn giải Bài 1 (Trang 128 SGK Hóa học 12)
<p>Viết phương tr&igrave;nh h&oacute;a học của c&aacute;c phản ứng thực hiện d&atilde;y chuyể đổi sau:</p> <p><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>A</mi><mi>l</mi><mo>&#160;</mo><mover><mo>&#8594;</mo><mfenced><mn>1</mn></mfenced></mover><mo>&#160;</mo><mi>A</mi><mi>l</mi><mi>C</mi><msub><mi>l</mi><mn>3</mn></msub><mo>&#160;</mo><mover><mo>&#8594;</mo><mfenced><mn>2</mn></mfenced></mover><mo>&#160;</mo><mi>A</mi><mi>l</mi><msub><mfenced><mrow><mi>O</mi><mi>H</mi></mrow></mfenced><mn>3</mn></msub><mover><mo>&#8594;</mo><mrow><mo>&#160;</mo><mfenced><mn>3</mn></mfenced></mrow></mover><mo>&#160;</mo><mi>N</mi><mi>a</mi><mi>A</mi><mi>l</mi><msub><mi>O</mi><mn>2</mn></msub><mo>&#160;</mo><mover><mo>&#8594;</mo><mfenced><mn>4</mn></mfenced></mover><mo>&#160;</mo><mi>A</mi><mi>l</mi><msub><mfenced><mrow><mi>O</mi><mi>H</mi></mrow></mfenced><mn>3</mn></msub><mo>&#160;</mo><mover><mo>&#8594;</mo><mfenced><mn>5</mn></mfenced></mover><mo>&#160;</mo><mi>A</mi><msub><mi>l</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub><mo>&#160;</mo><mover><mo>&#8594;</mo><mfenced><mn>6</mn></mfenced></mover><mo>&#160;</mo><mi>A</mi><mi>l</mi></math></p> <p>Hướng dẫn giải:</p> <p><math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced><mn>1</mn></mfenced><mo>&#160;</mo><mn>2</mn><mi>A</mi><mi>l</mi><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mn>3</mn><mi>C</mi><msub><mi>l</mi><mn>2</mn></msub><mo>&#160;</mo><mover><mo>&#8594;</mo><msup><mi>t</mi><mn>0</mn></msup></mover><mo>&#160;</mo><mn>2</mn><mi>A</mi><mi>l</mi><mi>C</mi><msub><mi>l</mi><mn>3</mn></msub><mspace linebreak="newline"/><mfenced><mn>2</mn></mfenced><mo>&#160;</mo><mi>A</mi><mi>l</mi><mi>C</mi><msub><mi>l</mi><mn>3</mn></msub><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mn>3</mn><mi>N</mi><msub><mi>H</mi><mn>3</mn></msub><mo>&#160;</mo><mo>+</mo><mo>&#160;</mo><mn>3</mn><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi><mo>&#8594;</mo><mi>A</mi><mi>l</mi><msub><mrow><mo>(</mo><mi>O</mi><mi>H</mi><mo>)</mo></mrow><mn>3</mn></msub><mo>&#8595;</mo><mo>+</mo><mn>3</mn><mi>N</mi><msub><mi>H</mi><mn>4</mn></msub><mi>C</mi><mi>l</mi></math></p> <p><math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced><mn>3</mn></mfenced><mi>A</mi><mi>l</mi><msub><mfenced><mrow><mi>O</mi><mi>H</mi></mrow></mfenced><mn>3</mn></msub><mo>+</mo><mi>N</mi><mi>a</mi><mi>O</mi><mi>H</mi><mo>&#8594;</mo><mi>N</mi><mi>a</mi><mi>A</mi><mi>l</mi><msub><mi>O</mi><mn>2</mn></msub><mo>+</mo><mn>2</mn><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi><mspace linebreak="newline"/><mo>(</mo><mn>4</mn><mo>)</mo><mi>N</mi><mi>a</mi><mi>A</mi><mi>l</mi><msub><mi>O</mi><mn>2</mn></msub><mo>+</mo><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub><mo>+</mo><mn>2</mn><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi><mo>&#8594;</mo><mi>A</mi><mi>l</mi><msub><mrow><mo>(</mo><mi>O</mi><mi>H</mi><mo>)</mo></mrow><mn>3</mn></msub><mo>&#8595;</mo><mo>+</mo><mi>N</mi><mi>a</mi><mi>H</mi><mi>C</mi><msub><mi>O</mi><mn>3</mn></msub></math></p> <p><math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced><mn>5</mn></mfenced><mn>2</mn><mi>A</mi><mi>l</mi><msub><mfenced><mrow><mi>O</mi><mi>H</mi></mrow></mfenced><mn>3</mn></msub><mo>&#160;</mo><mover><mo>&#8594;</mo><msup><mi>t</mi><mn>0</mn></msup></mover><mo>&#160;</mo><mi>A</mi><msub><mi>l</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub><mo>+</mo><mn>3</mn><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi><mspace linebreak="newline"/><mo>(</mo><mn>6</mn><mo>)</mo><mn>2</mn><mi>A</mi><msub><mi>l</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub><mo>&#160;</mo><mover><mo>&#8594;</mo><mrow><mi>&#273;</mi><mi>p</mi><mi>n</mi><mi>c</mi></mrow></mover><mo>&#160;</mo><mn>4</mn><mi>A</mi><mi>l</mi><mo>+</mo><mn>3</mn><msub><mi>O</mi><mn>2</mn></msub><mo>&#8593;</mo></math></p>
Giải bài tập 1 (trang 128, SGK Hóa học 12)
GV: GV colearn
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Giải bài tập 1 (trang 128, SGK Hóa học 12)
GV: GV colearn