某研究小组为探究弱酸性条件下铁发生电化学腐蚀类型的影响因素,设计下表实验。将混合均匀的新制铁粉和碳粉置于锥形瓶底部,塞上瓶塞。从胶头滴管中一次性滴入醋酸溶液,同时测量容器中的压强变化。下列说法错误的是( )
![](http://tikupic.21cnjy.com/2022/06/23/b3/5f/b35f89f66e11ee9a8b498fb48b89bc76_219x176.png)
编号 | 实验目的 | 碳粉/g | 铁粉/g | 醋酸/![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmn%3E%25%3C%2Fmn%3E%3C%2Fmath%3E) | 醋酸/![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmtext%3Em%3C%2Fmtext%3E%3Cmtext%3EL%3C%2Fmtext%3E%3C%2Fmath%3E) |
① | 为以下实验作参照 | 0.5 | 2.0 | 90.0 | 2.0 |
② | 醋酸浓度的影响 | 0.5 | a | 36.0 | 2.0 |
③ | M | 0.2 | 2.0 | 90.0 | 2.0 |
- A、
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmtext%3Ea%3C%2Fmtext%3E%3Cmtext%3E%3D%3C%2Fmtext%3E%3Cmtext%3E2%3C%2Fmtext%3E%3Cmtext%3E.%3C%2Fmtext%3E%3Cmtext%3E0%3C%2Fmtext%3E%3C%2Fmath%3E)
- B、M为“碳粉质量的影响”
- C、该实验一共探究了4种影响因素
- D、铁发生电化学腐蚀负极反应为
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmtext%3EF%3C%2Fmtext%3E%3Cmtext%3Ee%3C%2Fmtext%3E%3Cmo%3E%E2%88%92%3C%2Fmo%3E%3Cmn%3E2%3C%2Fmn%3E%3Cmsup%3E%3Cmrow%3E%3Cmtext%3Ee%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmo%3E%E2%88%92%3C%2Fmo%3E%3C%2Fmrow%3E%3C%2Fmsup%3E%3Cmo%3E%3D%3C%2Fmo%3E%3Cmtext%3EF%3C%2Fmtext%3E%3Cmsup%3E%3Cmrow%3E%3Cmtext%3Ee%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3Cmo%3E%2B%3C%2Fmo%3E%3C%2Fmrow%3E%3C%2Fmsup%3E%3C%2Fmath%3E)