（5）溶解度——2021-2022学年九年级下册化学人教版课后天天练
※题型：单选题※知识点：单选题※试题难度：中等<br>下列有关溶液说法正确的是( )<br>A.溶液都是均一、稳定的混合物<br>B.所有饱和溶液都比不饱和溶液要浓<br>C.形成溶液的溶质都是固体<br>D.氯化钠饱和溶液中不能再溶解少量硝酸钾晶体<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/e900c6f3754146bc888740a6d270676b/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/b2f60fd0e11e49a6921d80d3faef1bb3/92332C2AB1CA8FF97754D40CD5722B85.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>使某不饱和溶液变为饱和溶液,下列方法中最可靠的是( )<br>A.升高温度 B.加入溶质<br>C.降低温度 D.倒掉一部分溶液<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/f9088547e1884bb78ae75e4e193f7a12/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/2600cabe29d848cd99046a6b759c1c4d/999353421C545AC062F94D36F735D72F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>某同学模拟闽籍化学家侯德榜的“侯氏制碱法”制纯碱,需用50.0g水配制20℃的NaCl饱和溶液(20℃时NaCl的溶解度为36.0g),应称取NaCl的质量为( )<br>A.18.0g B.16.0g C.13.2g D.11.5g<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2018/19e3f49e36c54f5480654e8a802ead7d/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2018/55bbb59c889e43fdabbdeac9149a9148/993BAE7727D9B9F9D22D080D9361C2A7.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>生活中的下列现象,能说明气体的溶解度随压强变化而变化的是( )<br>A.夏季,鱼塘中的鱼常常会浮在水面呼吸<br>B.喝了汽水以后,常常会打嗝<br>C.打开汽水瓶盖,有大量气泡冒出<br>D.烧开水时,沸腾前水中有气泡产生<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/9944e5643c674f3a9b050985da2027d2/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/fbe4e86fe635465d97bb372548750862/74B91BEC4F8981E6CD263B463D3B7CD9.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>向一瓶接近饱和的氯化铵溶液中,逐渐加人氯化铵晶体,下列图像符合溶液中溶质质量变化规律的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/A5E3E4FF741818C8AC60DE6C7E181EE7.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/17651F58731EB98DCD9E4A64DE912BE2.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/B38C92E0C5EE8CFE645972B811309F01.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/1F910E64D952582AE501704BDB0AC589.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/777ea3f9fab24695a4d3adf05821918d/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/c74673c813364493b0f75edc6e92afe2/5D57E68967AC7EC6C8097A612D00BF97.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列说法正确的是( )<br>A.相同温度下饱和溶液一定比不饱和溶液浓<br>B.饱和溶液降温后溶质质量一定减小<br>C.饱和溶液就是不能再溶解任何物质的溶液<br>D.—定温度下,固体物质M的不饱和溶液中,加足量M—定能变成饱和溶液<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/ea94fe4e81ed42d899cd230f76defa77/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/6c4a62636617403391ae40673713d88d/844416A2A849D608C0B1EAB4F78FE093.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>对“20℃时,硝酸钾溶解度为31.6g”这句话解释正确的是( )<br>A.20℃时,100g硝酸钾溶液中含有31.6g硝酸钾<br>B.在100g水中溶解31.6g硝酸钾就达到饱和状态<br>C.20℃时,100g水中最多能溶解31.6g硝酸钾<br>D.20℃时,溶解31.6g硝酸钾最多需要100g水<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/04ddf1dac49b461fa8721f2f44a8100e/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图所示,向等质量的氧化耗和氢氧化钙中分别加入等质量的水,均全部溶解,得到20<img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/477350043A51D10326237306BD60C138.png"><br>的溶液,对甲、乙烧杯中溶液的分析正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/D08B7F5B7768D239ABB8A4C960601CCF.png"><br>A.溶质质量可能相等 B.溶剂质量一定相等<br>C.溶液质量一定相等 D.可能都是饱和溶液<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/cc08198057fc45fea1228afa58f7b6ac/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/f27cdb1ce32e48cf8c244c357b2e1ad4/0B7257B97B818D38A57307534BF7EAAE.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图是甲、乙、丙三种物质的溶解度曲线,下列说法中正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/0A3625C76AB8D921B674A288F4F1762A.png"><br>A.P点表示甲、丙两种物质的饱和溶液质量相等<br>B.t<sub>1</sub><img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/477350043A51D10326237306BD60C138.png"><br>时,乙物质的饱和溶液升温至t<sub>2</sub><img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/477350043A51D10326237306BD60C138.png"><br>时仍是饱和溶液<br>C.t<sub>1</sub><img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/477350043A51D10326237306BD60C138.png"><br>时,甲物质的饱和溶液中溶质和溶剂的质量比为1:4<br>D.将三种物质的溶液从t<sub>2</sub><img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/477350043A51D10326237306BD60C138.png"><br>降温至t<sub>1</sub><img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/477350043A51D10326237306BD60C138.png"><br>,析出晶体最多的是甲物质<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/8026ffe9c4904ebdb28beeabd5793df5/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/7f9a8e28002344738c20c18673d21703/2D16AE8121DA1C576D01C3DE6FFD0D3B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>甲、乙两种物质的溶解度曲线如图所示,下列说法正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/C6D3C254E4388F20785893CB6A399105.png"><br>A.t<sub>1</sub><img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/477350043A51D10326237306BD60C138.png"><br>时,甲、乙两种溶液中溶质的质量相等<br>B.t<sub>1</sub><img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/477350043A51D10326237306BD60C138.png"><br>时,100g甲物质的饱和溶液中溶质的质量是20g<br>C.要将甲溶液的状态由a点转化为6点,可以加适量溶剂<br>D.分别将t<sub>2</sub><img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/477350043A51D10326237306BD60C138.png"><br>时两种物质的饱和溶液降温至t<sub>1</sub><img src="https://picture2.zhihuicn.com/testImage/2/2019/10/31/477350043A51D10326237306BD60C138.png"><br>,均有晶体析出<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/0aee1cc3b23248fd8d294fb5e687f94d/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/b1bbf6306fe1469497e33be96b939d73/CE8CA12521091A80C76244C37B2ACEA2.png"><br><br>
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