Derive the chemical formula of one of the phosphorus acids, in which the mass fraction of phosphorus is 34.8%,
| December 6, 2020 | education
Derive the chemical formula of one of the phosphorus acids, in which the mass fraction of phosphorus is 34.8%, oxygen – 62.9%, hydrogen – 2.3%.
Let’s find the number of moles for all elements:
(P) = 34.8 / 31 = 1.1 mol
(O) = 62.9 / 16 = 4 mol
(H) = 2.3 / 1 = 2.3 mol
P: O: H = 1.1: 4: 2.3 = 1: 4: 2
H2PO4 – acidic residue of phosphoric acid
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