fe3+是什么颜色
翡翠是以硬玉矿物为主的辉石类矿物组成的纤维状集合体,是在地质作用下形成的达到玉级的石质多晶集合体。
经过综合的考量后,我们购买到的翡翠才是物有所值的,也是最称心如意的。
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樊茅翟51672价铁离子和3价铁离子是什么颜色
饶烁宙15536438174 ______ 50分的大题.所以细细琢磨了一下 抛开其它杂念和思想.中学角度我们认为Fe2+为浅绿色.Fe3+为棕黄色.这是没有问题的 但是,实际情况比较复杂 A:浓度不同,颜色也有差别. 如较稀的Fe3+的水溶液显示浅黄色, 而浓度大的Fe3+的水溶液则显示深棕黄色,有点偏棕红色,像浓溴水的颜色.甚至有人给它冠上黄褐色.这都不过. B:阴离子不同,颜色也有所差别,就像CuSO4溶液是蓝色的,而新制的CuCl2却是蓝绿色的,一段时间颜色又会变得和CuSO4一样的蓝色.Cu(NO3)2也是蓝色的,但是它的蓝色感觉和前两种还的有点不同.
樊茅翟5167初中常见的酸碱盐溶液分别是什么颜色的 -
饶烁宙15536438174 ______[答案] 含有下列离子的颜色: 淡绿色(Fe2+)、棕黄色(Fe3+)、蓝色(Cu2+) 紫红色(MnO4-) 在实际情况下,颜色会随浓度改变,不是一成不变的 初中阶段其他的离子无色
樊茅翟5167氯化铁,氯化亚铁,氢氧化铁,氢氧化亚铁分别是什么颜色的? -
饶烁宙15536438174 ______[答案] 我特地翻了高中时做了三年的化学笔记:氯化铁----FeCL3 显示的是Fe3+离子的颜色:棕黄色 氯化亚铁----FeCL2 Fe2+离子的颜色:浅绿色 氢氧化铁----Fe(OH)3 这里是沉淀,所以对应的应是棕黄色(褐色)沉淀 氢氧化亚铁----Fe(OH)2 白色沉淀 这...
樊茅翟5167Cu2+,Fe3+,Fe2+各显什么色? -
饶烁宙15536438174 ______[答案] Cu2+是兰色,Fe3+是黄色,Fe2+是浅绿色
樊茅翟5167各种溶液的颜色是什么样的?化学反应中所用到的各种溶液的颜色和反应后得到溶液的颜色 -
饶烁宙15536438174 ______[答案] Fe(SCN)3是血红色 Fe3+溶液为浅黄色,Fe2+溶液为浅绿色,Cu2+溶液为浅蓝色
樊茅翟5167Fe3+是红棕色的,为什么FeCl3是棕黄色的, -
饶烁宙15536438174 ______[答案] Fe3+是棕黄色的,不是红棕色的 Fe(OH)3才是红棕色的,里面没有铁离子,因为是沉淀
樊茅翟5167初中化学离子的颜色,不同的有那几种!!! 如fe3+ 在什么情况下带什么颜色?
饶烁宙15536438174 ______ 在溶液里的颜色 Cu2+ 蓝色 Fe2+ 绿色 Fe3+ 黄色 MnO4- 紫色
樊茅翟51672价铁离子和3价铁离子分别是什么颜色?
饶烁宙15536438174 ______ 不同状态颜色不同, 溶液里2价为浅绿,3价为黄绿 当生成沉淀时,2价为红褐色,3价为黄色.
樊茅翟5167氯化亚铁溶液是什么颜色的? -
饶烁宙15536438174 ______[答案] 绿色 所有二价铁离子(Fe2+)的自由离子都是绿色的,无论阴离子是硫酸根还是硝酸根或者氯离子. 所有三价铁离子(Fe3+)的自由离子都是黄色的,无论阴离子是硫酸根还是硝酸根或者氯离子. 这里强调自由离子是与络合离子相对的,你以后还能...
樊茅翟5167硝酸铁溶液什么颜色 -
饶烁宙15536438174 ______[答案] 硝酸铁确实是无色或淡紫色单斜晶体 真正的Fe3+离子和六水合Fe3+离子是呈淡紫色的 但是由于在通常pH条件下,水合Fe3+离子极易水解 部分水解的产物Fe(OH)2+等羟化物和羟氧化物中 OH-和O2-作为配体,其配位场效应非常强 使得Fe3+的3d能...