一定温度下,向
、
均为0.01 mol/L的混合溶液中持续通入CO2,始终保持CO2分压固定,体系中
关系如图所示。其中,c表示
、
、
、
、
的浓度。已知
的
。下列说法正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3a031c254563b77784825f308fed68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a944e3cc40945dff89c8e441fa6588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e3eb5a68ae90655cc111a5492d2c958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a79bd7b453a3fe3ab5986fe7afc5ebbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e18846ec9f4312e7e93b3e60efa6d6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/065e3dd567b4b629e3e6ad65193aa352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5533a64f801adeabf53d192906e951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52db9e787c515500701f6f34344a595b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a66a64e04e809d4bfa371bbd769dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa237e7016ca27543c13a262c5c56a46.png)
A.③代表![]() |
B.pH逐渐增大时,溶液中优先析出的沉淀为![]() |
C.![]() |
D.![]() ![]() |
更新时间:2024-05-16 16:48:36
|
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【推荐1】电位滴定法是在滴定过程中通过测量电位变化以确定滴定终点的方法,当电极电位(ERC)产生了突跃,被测离子浓度产生突跃,进而确定滴定终点。向
溶液(
为二元弱酸)中逐滴滴加
二元酸
溶液,第一个电位突跃时消耗amL
溶液,第二个电位突跃时消耗bmL
溶液,根据消耗
溶液体积,可判断
和
各级电离常数大小关系。下列说法错误的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82831a9a2326e07baa5adace0daa511d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17865f8dddb369e8e0b1e6d1de6f6c1c.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4406269e0cec4d409637dfd15611ce6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4406269e0cec4d409637dfd15611ce6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4406269e0cec4d409637dfd15611ce6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4406269e0cec4d409637dfd15611ce6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17865f8dddb369e8e0b1e6d1de6f6c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4406269e0cec4d409637dfd15611ce6e.png)
A.若![]() ![]() ![]() |
B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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【推荐2】常温下,一元碱BOH的
。在某体系中,
与
离子不能穿过隔膜,未电离的BOH可自由穿过该膜(如图所示)。设溶液中
,当达到平衡时,下列叙述正确的是
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/6/f8a0a0fa-f196-47c3-a28a-62b7f25be4c1.png?resizew=273)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae9c83f046c9e70617451d255b983e3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddb1d64b90911fd3bf01aa7050a19bf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5287325d4052f981dd5f333f68c3f3d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99488e26137431e44b971bd2a3d525bb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/6/f8a0a0fa-f196-47c3-a28a-62b7f25be4c1.png?resizew=273)
A.溶液II中![]() |
B.溶液I中BOH的电离度![]() ![]() |
C.溶液I和II中的![]() |
D.溶液I和II中的![]() ![]() |
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名校
【推荐1】一种利用含钴废料(主要成分为
,还含有少量
、
、
等杂质)制备
的工艺流程如下。下列说法错误的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b4abcd1a8baa4712f881ad6d1210ad0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61f83e3c8bcb8237b5aa8a808ad68a45.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80d9015ef1b9e7dee298b5cf0458ac3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c69d3b921b5db66316937730091f5c62.png)
金属离子 | ![]() | ![]() | ![]() | ![]() |
开始沉淀的pH | 8.5 | 2.2 | 3.4 | 7.8 |
完全沉淀[c(金属离子)≤1×10-5mol/L]的pH | 10.0 | 3.0 | 4.5 | 9.4 |
A.“酸浸”时可用![]() ![]() |
B.“调pH”的范围为4.5~7.8,滤液中残留的![]() |
C.气体X可在“调pH”操作单元回收利用 |
D.“高温焙烧”时的化学方程式:![]() |
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【推荐2】常温下,将
或
悬浊液置于分压固定的
气相中,体系中
关系如图所示,已知
,
为溶液中
、
、
、
、
的浓度,
。下列说法正确的是
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/21/9bbaba81-fcd3-4b3b-9b25-29617f846641.png?resizew=253)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b42aa91216fec7c2539b36557691661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd9afe6b07b0bc601faa0066727c05a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e71c86dcd9a9e9b09bbbb65b9d313435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/106502b2b4ac3bfe29570ae8212c4deb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de630e25fd75f3eab5c0701404910571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29bcdd8c05cd04f46c6f4ba8aa3cb1d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/659105f337cf41cb6411ff0c9ea2c249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5533a64f801adeabf53d192906e951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52db9e787c515500701f6f34344a595b.png)
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A.![]() ![]() |
B.向![]() ![]() ![]() ![]() |
C.![]() |
D.![]() ![]() |
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