So, rather than confusing the person you are writing the spec for, I would use whichever wording you find in B, which I believe will be "chromate". Unfortunately argh! There is a technical difference, as Ted said, but the two terms are pretty much interchangeable. I doubt a plater is going to ask you if you want "chromate" or "dichromate. But they have different appearances. Overview and Key Difference 2. What is Chromate 3. What is Dichromate 4.
Chromate is an oxyanion of chromium having the chemical formula CrO 4 Generally, we use this term to name the compounds containing this anion collectively as one group, i. Usually, the chromates have a bright yellow colour. It is a moderately strong oxidizing agent. The molar mass of this anion is Now add about 10 cm 3 of sodium hydroxide solution and shake the mixture. Do you get back to where you started? Can you repeat the whole process by adding sulfuric acid and sodium hydroxide alternately all over again?
Additional information This is a resource from the Practical Chemistry project , developed by the Nuffield Foundation and the Royal Society of Chemistry. Level years. Use Practical experiments. Category Practical skills and safety Investigation Redox chemistry Equilibrium Reactions and synthesis.
AQA Combined science: Synergy 4. AQA Combined science: Trilogy 5. Edexcel Chemistry Topic 4 - Extracting metals and equilibria Reversible reactions and equilibria 4. Related articles. Ideas When things go wrong in the classroom, a video can help TZ Practical demo gone wrong in the chemistry lab? Layman's explanation: Dichromate is used in a number of chemical reactions. Its ionic properties allow it to form many salts that can be used in oxidation-reduction reactions. Difference Between Chromate and Dichromate Nathan Holland.
Yet No Comments. Silvester Welch.
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