Acid–base titrationsColour indicatorsTitration errorTo recognise the end point of acid–base titrations, colour indicators are still frequently used. Colour indicators can cause systematic errors, and the theoretical evaluation of these errors is given......
百度试题 结果1 题目acid-base indicators change colour because of changes in the( )ion concentration of a solution 相关知识点: 试题来源: 解析 Hydrogen.还想问下这句话讲的是什么意思酸碱指示剂变色因为氢离子浓度变化。反馈 收藏
1、indicatorsmaterials which change colour according to ph of solution in which they are placed.litmus, methyl orange ,phenolpthalein are examples.red cabbage and blackberry juice contain natural indicators.most indicators are weak acidshin h+ + in- red blue(acid) (base)add acid.what happens?
a.a substance used in titrations to indicate the completion of a chemical reaction, usually by a change of colour b.a substance, such as litmus, that indicates the presence of an acid or alkali 8.(Environmental Science)ecology a.a plant or animal species that thrives only under particular ...
Ittried the common 10 kinds of acid - base indicators which are available in the titration water sample total alkalinity. 试验了可用于滴定水样总碱度的常见10种酸碱指示剂。 terms.shengwuquan.com 2. Chemical reagent--General method for the determination of pH ranges corresponding the colour transition...
What colour do the following indicators turn when added to an acid? Litmus solution View Solution What colours do the following indicators turn when added to an acid (such as hydrochloric acid)? (a). Litmus (b). Methyl orange View Solution ...
I would probably have to distill it from beer or something like that which could be dangerous (explosive) and very hard so I am not going to do it.The question is ,are there any other safer ways to make an acid/base indicator out of fruits and vegetable etc. Logged ...
Similarities were calculated with Bray-Curtis Similarity Index (0 = no similarity, 1 = high similarity) and significances tested with Wilcoxon rank-sum test. b The within sampling time point similarities of replicates (n = 3) is indicated in colour and the dispersion (coefficient ...
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