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What is the pH of a 0.05M solution of TRIS acid with a pKa of 8.3?
Wiki User
∙ 10y ago
If the pKa is 8.3, when Ka = 10^-pKa = 5.012*10^-9.
Then, [H+]= sq. rt(Ka*C0). {C0 is the intial concentration of the acid}.
[H+] = sq. rt[(5.012*10^-9)(0.05M)}
= 1.58*10^-5 M
Then, pH = -log[H+]
pH = -log (1.58*10^-5M)
= 4.8
Wiki User
∙ 10y ago
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∙ 13y ago3.03
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What is definition of pka value and difference between pH and pKa?
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What is the pka of cyclohexane?
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It is the most effective when it is at pH=pKa of its weak acid component.
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Is ascorbic acid weak?
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What is definition of pka value and difference between pH and pKa?
A pKa value is a measurement used for bases and acids. The measurement pH applies to hydronium ion concentrations that are in a solution, whereas pKa only applies to determining the amount of dissociation an acid wants to do in a solution.
What is the pka of cyclohexane?
pKa is measured for acid in aqueous solution while hexane is an organic liquid immiscible with water so pKa value is meaning less for hexane.
When is a buffer solution most effective?
It is the most effective when it is at pH=pKa of its weak acid component.
What is pka value for sodium bicarbonate?
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What is the pka of bromoacetic acid?
pKa=2.86
Is ascorbic acid weak?
The acid dissociation constant (Ka) is the measure of strength of an acid in solution. Symbolically, as HA is added to solution it breaks down into a proton (H+) and it's conjugate base (A-). The value of Ka is equal to products over reactants (aqueous only i.e. no solids or liquids) . Once you solve for Ka, you can solve for the pKa which is equal to -logKa. The pKa will determine if the acid is weak or strong. Strong acids are more willing to dissociate in water and have a pKa value of <-2. The pKa of ascorbic acid is only 4.2, and so it is a weak acid.
What is the pka of an carboxylic acid?
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Which has greater buffering capacity at Ph 3.5-5 acetic acid or citric acid?
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How do you get pKa with the pH of a solution?
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Is aspirin a strong acid?
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What would be the pH at the half-equivalence point in titration of a monoprotic acid with NaOH solution if the acid has Ka equals 5.2x10-6?
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