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editor">　　采用比較的方法，取用一定質量比例的無水醋酸鈉和堿石灰共熱制甲烷，找出當醋酸鈉的質量一定時，促使制取甲烷反應平穩進行的堿石灰的用量，具體的實驗步驟。<img title="無水醋酸鈉" alt="無水醋酸鈉" align="right" src="/Upload/thumb_5b447567d24c2_bateditor.jpg" width="400" height="300" /><br /> 　?、龠B接好實驗裝置，并將發生裝置與500ml量筒間的集氣瓶注滿水。<br /> 　?、跈z查實驗裝置的氣密性。<br /> 　?、鄯謩e將無水醋酸鈉、CaO、NaOH在研缽中研細，并將其在蒸發皿中干燥，然后分別裝入容器中。<br /> 　?、苋o水醋酸鈉20g平均分成八等份，分別裝入八支大試管中，依次編號，再往試管中依次加入自制堿石灰（CaO:NaOH=1：1）2.0g、3.0g、3.5g4.0g、4.5g、5.0g、5.5g、6.0g，此時CH3COONa：NaOH的比值依次為5/2、5/3、10/7、5/4、10/9、1/1、10/11并塞上橡皮塞，防止潮解（氫氧化鈉易吸水，應最后稱量）。<br /> 　?、莘謩e加熱八支試管，從導管末端滴入第一滴水開始計時，記錄各組成分在五分鐘內甲烷所產生的體積，并記錄試管的破損情況（確保此一系列試驗的變量只有堿石灰的質量）。<br /> 　?、拊囼炌瓿珊?，整理儀器。<br /> 　?、叻治鰧嶒灲Y果。<br /> 　　通過對實驗結果的對比分析，就可以得出無水醋酸鈉與堿石灰制取甲烷的理想配比了。</div> <div class="page" style="clear:both;"> 上一條：沒有了<br> 下一條：<a href="http://m.lqtongji.com/news/hyzx/show275.html">一水硫酸鋅和七水硫酸鋅的區別</a><br> </div> <h4 class="related"><span style="font-weight:bold;height:30px;line-height:30px;font-size:13px; color:#fff; padding-left:10px">相關資料</span></h4> <ul 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