Help: Phosphoric acid content
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Why is the concentration of industrial phosphoric acid expressed as a mass fraction of phosphorus pentoxide? If the concentration of phosphorus pentoxide is 20%, then is the phosphoric acid concentration 27.6%? The total is 47.6% – is this calculation correct? I’m a beginner and need help; thank you.
Phosphoric acid with a 100% content, with phosphorus pentoxide at 72.45%. By dividing 72.45% by 20%, the phosphoric acid content is 27.6%.
The answer above is correct; it’s possible to use the molecular weight as well, or to use the pure content