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15 Απρ 2024 · Calculate the pH of a solution of a weak monoprotic weak acid or base, employing the "five-percent rule" to determine if the approximation 2-4 is justified. Predict whether an aqueous solution of a salt will be acidic or alkaline, and explain why by writing an appropriate equation.
25 Ιουλ 2024 · With this pH calculator, you can determine the pH of a solution in a few ways. It can convert pH to H + , as well as calculate pH from the ionization constant and concentration . The pH value is an essential factor in chemistry, medicine, and daily life.
8 Ιουν 2024 · Phosphoric acid, H3PO4, is a strong triprotic acid with three pKa values, which defines three dissociation reactions. The pH of a phosphoric acid solution depends on the concentration of the acid and the proportions of the different phosphate species present.
18 Ιουλ 2023 · In general the pH of a solution of a weak acid depends on only two factors, the concentration of the acid, c a, and the magnitude of an equilibrium constant K a, called the acid constant, which measures the strength of the acid. The acid constant is defined by the relationship:
19 Απρ 2016 · How to calculate pH of a solution when HX3POX4, NaHX2POX4, NaX2HPOX4 and NaX3POX4 are mixed together in certain amounts to form a solution? I know how to calculate pH when they are present individually but not when all of them together. I searched the net also but couldn't find any such example. acid-base. ph. Share. Cite. Improve this question.
30 Ιαν 2023 · pH = − log[H3O +] = − log0.76 = 0.119. Let's say our task is to find the pH given a polyprotic base which gains protons in water. Thankfully, the process is essentially the same as finding the pH of a polyprotic acid except in this case we deal with the concentration of OH - instead of H 3 O +.
Salts contain cations (C+) and anions (A-), e.g., Na+ and Cl- in NaCl; K+ and OH- in KOH. Some salts, when dissolved in water, give neutral solutions (pH = 7.00), some give acidic solutions (pH < 7.00) and some give basic solutions (pH > 7.00). We must understand why, and be able to do calculations.
