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  1. How to convert P2O5 concentration to H3PO4 concentration?

    Sep 7, 2019 · $\ce {P2O5}$ content is useful as it is the phosphorous content that a scientist often cares about when using phosphoric acids. This might seem silly given that as you pointed out …

  2. Why is phosphorous pentoxide a dehydrating agent?

    Jul 26, 2020 · Phosphorus pentoxide can dehydrate nitric acid to form its anhydride, dinitrogen pentoxide. $$\ce {2HNO3 -> [P2O5] [- H2O] N2O5}$$ Why dinitrogen pentoxide is not used as …

  3. Mechanism of carboxylic acid and amide dehydration with …

    Jan 8, 2017 · Dehydration of carboxylic acids with phosphorus pentoxide ($\ce {P2O5}$) yields acid anhydrides, and in a similar reaction, amides dehydrated with phosphorus pentoxide yield …

  4. Why is phosphorus (v) oxides molecular formula P4O10 and not …

    Mar 12, 2019 · I understand that the name derives from the empirical formula; however, I do not understand why it does not exist as $\\ce{P2O5}$. Is there a compound that exists with this as …

  5. Is the proper formula for phosphorus oxide(V) P4O10 or P2O5?

    Dec 8, 2013 · I would like to ask about formula of phosphorus oxide (V). Should it be $\ce {P4O10}$ or $\ce {P2O5}$? Which is right when I have to write the molecular formula?

  6. organic chemistry - Dehydration of carboxylic acids using P2O5 ...

    Apr 26, 2018 · Why isn’t concentrated $\ce {H2SO4}$ used for the dehydration of carboxylic acids to anhydrides? What is special about $\ce {P2O5}$?

  7. Reactions of P2O5 and P4O10 with sulfuric acid [closed]

    Jul 3, 2021 · $$\ce {H2SO4 + P2O5 -> SO3 + 2HPO3}$$ $$\ce {6H2SO4 + P4O10 -> 6SO3 + 4H3PO4 }$$ Since it is a dehydration reaction the oxidation states of sulphur and phosphorous …

  8. organic chemistry - Differences between KOH and phosphorus …

    Jul 25, 2012 · The most common drying agent I encountered when using a vacuum dessicator was phosphorus pentoxide in the form of Sicapent. But I've recently encountered people using …

  9. P2O5 concentration % based on a 75% Phosphoric Acid Solution

    Dec 17, 2021 · If I want to obtain a P2O5 concentration of 4,7 % in my final solution, what % of Phoshoric Acid Solution at 75% I need to put in? My guess is about 8,7 % of 75% Phoshoric …

  10. Beckmann rearrangement v/s dehydration of Oximes

    Jul 14, 2020 · In the above question, A is an oxime, which is then reacted with phosphorus pentoxide. Now, phosphorus pentoxide is both a dehydrating reagent and a reagent used for …