利用浊度计探究一定条件下反应物浓度对硫代硫酸钠(
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmtext%3EN%3C%2Fmtext%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3Ea%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3ES%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EO%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E3%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3C%2Fmath%3E)
)溶液与硫酸溶液反应速率的影响。浊度计用于测量浑浊度的变化,产生的沉淀越多,浑浊度(单位为NTU)值越大。
反应原理:![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmtext%3EN%3C%2Fmtext%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3Ea%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3E2%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3ES%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3E2%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EO%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3E3%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3E%2B%3C%2Fmtext%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EH%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3E2%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3ES%3C%2Fmtext%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EO%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3E4%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3E%3D%3C%2Fmtext%3E%3Cmtext%3ES%3C%2Fmtext%3E%3Cmo%3E%E2%86%93%3C%2Fmo%3E%3Cmtext%3E%2B%3C%2Fmtext%3E%3Cmtext%3ES%3C%2Fmtext%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EO%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3E2%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmo%3E%E2%86%91%3C%2Fmo%3E%3Cmtext%3E%2B%3C%2Fmtext%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EH%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3E2%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3EO%3C%2Fmtext%3E%3Cmtext%3E%2B%3C%2Fmtext%3E%3Cmtext%3EN%3C%2Fmtext%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3Ea%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3E2%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3ES%3C%2Fmtext%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EO%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3E4%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3C%2Fmath%3E)
用图1所示装置进行如下表所示的5个实验,分别测量混合后溶液达到浑浊度为375NTU的过程中,浑浊度随时间变化情况。实验①~⑤所得数据如图2曲线①~⑤所示。
![](http://tikupic.21cnjy.com/2024/02/27/0a/12/0a12b698a29023e27fca80a9c06998e7_m_994x258.png)
实验编号 | 溶液 | 溶液 | 蒸馏水 |
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmi%3Ec%3C%2Fmi%3E%3Cmn%3E%2F%3C%2Fmn%3E%3Cmrow%3E%3Cmo%3E%28%3C%2Fmo%3E%3Cmrow%3E%3Cmtext%3Em%3C%2Fmtext%3E%3Cmtext%3Eo%3C%2Fmtext%3E%3Cmtext%3El%3C%2Fmtext%3E%3Cmo%3E%E2%8B%85%3C%2Fmo%3E%3Cmsup%3E%3Cmrow%3E%3Cmtext%3EL%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmo%3E%E2%88%92%3C%2Fmo%3E%3Cmn%3E1%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsup%3E%3C%2Fmrow%3E%3Cmo%3E%29%3C%2Fmo%3E%3C%2Fmrow%3E%3C%2Fmath%3E) | V/mL | ![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmi%3Ec%3C%2Fmi%3E%3Cmn%3E%2F%3C%2Fmn%3E%3Cmrow%3E%3Cmo%3E%28%3C%2Fmo%3E%3Cmrow%3E%3Cmtext%3Em%3C%2Fmtext%3E%3Cmtext%3Eo%3C%2Fmtext%3E%3Cmtext%3El%3C%2Fmtext%3E%3Cmo%3E%E2%8B%85%3C%2Fmo%3E%3Cmsup%3E%3Cmrow%3E%3Cmtext%3EL%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmo%3E%E2%88%92%3C%2Fmo%3E%3Cmn%3E1%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsup%3E%3C%2Fmrow%3E%3Cmo%3E%29%3C%2Fmo%3E%3C%2Fmrow%3E%3C%2Fmath%3E) | V/mL | V/mL |
① | 0.1 | 1.5 | 0.1 | V1 | 10 |
② | 0.1 | 2.5 | 0.1 | V2 | 9 |
③ | 0.1 | 3.5 | 0.1 | 3.5 | 8 |
④ | 0.1 | V3 | 0.1 | 2.5 | 9 |
⑤ | 0.1 | V4 | 0.1 | 1.5 | 10 |