（3）物质的溶解性—2021-2022学年化学鲁教版（五四制）九年级全一册同步课时作业
※题型：单选题※知识点：单选题※试题难度：较易<br>在进行硝酸钾与氯化钠溶解性比较实验时,下列条件必须控制的是( )<br>①温度②溶质颗粒大小③溶质质量④溶剂质量⑤溶剂种类A.①② B.②③④ C.①④⑤ D.①⑤<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/5261c09144d143d4a319047b4b82a101/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/ef22fd1a789b4699b8e037591be03cde/7174DCE1B6749407889F9E08A30A3C24.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>在20℃时,将15<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/8D2E49B3ABD2B42F9528623241021160.png"><br>硝酸钾放人100<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/8D2E49B3ABD2B42F9528623241021160.png"><br>水中,搅拌发现溶液中溶质全部溶解,则硝酸钾属于( )<br>A.难溶物 B.微溶物 C.可溶物 D.易溶物<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/b79880ca94754a64a4b21c7839601aae/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/59417dfcee974c0ab430d038e9230b4a/DCFD8BBDB1C6CCA49CBC84DF6E550BE7.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>同种物质在不同种溶剂中溶解性不同。如高锰酸钾不易溶于汽油,却易溶于水。能溶于水的物质可称为亲水性物质。下列属于亲水性物质的是( )<br>A.碘 B.食盐 C.米粉 D.石灰石<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/3f27a4c1ff1c4264bd9800e745eb61dc/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列关于溶解度的说法,不正确的是( )<br>A.溶解度能够表示物质溶解性的强弱程度<br>B.溶解度能够表示溶质在溶剂中溶解的程度<br>C.溶解度能够表示某种物质在某种溶剂中的溶解限量<br>D.在相同温度、相同溶剂的条件下,不同物质的溶解度相对大小,可以根据其饱和溶液的溶质质量分数来判定<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/1f98b3568d1d43b5afa5ee8fc84242e6/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/7839fe09ca7f4e37b5ab098d823d30d6/74CB1D4849C5516099F9BA7702456292.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>夏季暴雨前,常出现“闷热”天气,此时鱼塘中的鱼儿往往有“浮头”(浮出水面)现象。以下关于气体溶解度的说法正确的是( )<br>A.在一定温度下,压强增大,气体溶解度不变<br>B.在一定温度下,压强减小,气体溶解度增大<br>C.在一定压强下,温度降低,气体溶解度减小<br>D.在一定压强下,温度升高,气体溶解度减小<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/11d4e4a27a32403b8553533e25419392/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/d97ea3953fc746c5a3b0ae999426fe72/13592DE901438FE110D50B4F79E752AD.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>生活中的下列现象不能说明气体溶解度随温度升高而减小的是( )<br>A.烧开水时,沸腾前有气泡逸出<br>B.阳光充足时,盛满水的鱼缸壁上有小气泡<br>C.打开啤酒瓶盖,有大量泡沫溢出<br>D.夏季黄昏时,池塘里的鱼浮出水面<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2014/720ba54aa0254103a652206027f00bc7/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2014/50888348857f4df3a82bbfff347eee41/06FFBEA608211B074B6A32952BBDCA48.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图是a、b、c三种物质的溶解度曲线。下列说法正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/23/91D301CE5DFEC2A3B8A772E3833BA62D.png"><br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/23/FCCD9596601883BB3311EAC823C6623F.png"><br>℃时a、b、c三种物质的溶解度由大到小的顺序是b>a>c<br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/23/987E7EF0931F8B5597DE88936DA9F6B2.png"><br>℃时,把30ga物质放入50g水中,可得到80ga物质的饱和溶液<br>C.在a物质中含有少量b物质,可用降温结晶的方法提纯a<br>D.通过加入溶质、蒸发、降温,可将c物质的不饱和溶液变成饱和溶液<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/114787626cec44a7b79d31106184ebdb/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/4ce5c7a2c4e54666890ab8fdecdb4751/7DC59F416E145F361EF5BFB01F5CBCBF.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>根据所给氯化钠和碳酸钠的溶解度及溶解度曲线的信息,回答下列问题:<br><tbody><br>温度<br>/<br>℃<br><br>溶解度<br>/<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/8D2E49B3ABD2B42F9528623241021160.png"><br>氯化钠<br>35.5<br>36.5<br>碳酸钠<br><br>36.5<br></tbody><br><img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/85C01948CC8BFB2612D4285C72682ABB.png"><br>1.<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/FCCD9596601883BB3311EAC823C6623F.png"><br>℃时,<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/4ECACFEBCC37EE7073E5B2183EE0B735.png"><br>的溶解度是<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/8D2E49B3ABD2B42F9528623241021160.png"><br>。<br>2.<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/BFD72B8D015C6E67E1C3E17DE297996F.png"><br>℃时,将40<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/8D2E49B3ABD2B42F9528623241021160.png"><br><img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/5020518739833AA0F61A620DBB447C84.png"><br>固体加入50<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/8D2E49B3ABD2B42F9528623241021160.png"><br>水中,充分溶解后所得<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/5020518739833AA0F61A620DBB447C84.png"><br>溶液中溶质与溶剂的质量比为<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/8D2E49B3ABD2B42F9528623241021160.png"><br>。<br>3.若<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/5020518739833AA0F61A620DBB447C84.png"><br>中混有少量的<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/4ECACFEBCC37EE7073E5B2183EE0B735.png"><br>,提纯<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/5020518739833AA0F61A620DBB447C84.png"><br>应采取的方法是<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/4/8D2E49B3ABD2B42F9528623241021160.png"><br>(填“降温结晶”或“蒸发结晶”)。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/ad91c0c505ac42349321f338d1c42a12/14E6C56D11A468BB951FC32E44B3A638.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/0735c16643bd4cb78fc91b4af1370801/5D09CA9DAA8284D0771ADFA069AB9B1A.png"><br><br>
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