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An unknown acid has a pKa 5.11. Determine the Ka for the acid.?
Wiki User
∙ 7y ago
pKa = -log Ka and thus Ka = 10^-pKa
Ka = antilog pKa
Ka = 7.76x10^-6
Wiki User
∙ 7y ago
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The Ka of an unknown weak acid is 5.4 x 10 to the power of negative 10. Determine the pKa of the weak acid?
pKa = -log KapKa = -log 5.4x10^-10pKa = 9.27
How do you determine the pka value of naphthalene?
Use a method called titration, where a known concentration of either a strong acid (to measure a weak base) or a strong base (to measure a weak acid) is slowly added to a solution of the unknown compound. By measuring the pH of the solution as you do the titration, and by measuring the volume of the known solution that you added to the unknown, you can determine the pKa of the unknown compound.For complete instructions on how a titration is performed, see the Web Links to the left of this answer.how can i determine pka value if pH is given?
How do you determine the pka of oxalic acid?
The pka of oxalic acid can be determined with the help of titration curve. The slight inflection that occurs corresponds to the first end point.
What is pKa in chemistry?
It refers to the acidity of the fatty acid (which make up the oils). Every fatty acid is composed of a non-polar long chain of hydrocarbons (carbon and hydrogen) and a polar head made up of Carboxylic ACID. Every acid has something called pKa which determines the acidity of that acid.The bigger the pKa (e.g. 25), the weaker the acid.The smaller ther pKa (e.g. 2), the stronger the acid.
What is Ph of lactic acid having pka of 4.4 when its 20 percent dissociated?
Using the Henderson-Hasslebach equation, pH=pKa+log([base]/[acid]), we can determine the pH as follows:pH=4.4+log([0.8]/[0.2])pH=4.4+log(4)pH=4.4+0.60pH=5.0
The Ka of an unknown weak acid is 5.4 x 10 to the power of negative 10. Determine the pKa of the weak acid?
pKa = -log KapKa = -log 5.4x10^-10pKa = 9.27
How do you determine the pka value of naphthalene?
Use a method called titration, where a known concentration of either a strong acid (to measure a weak base) or a strong base (to measure a weak acid) is slowly added to a solution of the unknown compound. By measuring the pH of the solution as you do the titration, and by measuring the volume of the known solution that you added to the unknown, you can determine the pKa of the unknown compound.For complete instructions on how a titration is performed, see the Web Links to the left of this answer.how can i determine pka value if pH is given?
How do you determine the pka of oxalic acid?
The pka of oxalic acid can be determined with the help of titration curve. The slight inflection that occurs corresponds to the first end point.
What is the pka of bromoacetic acid?
pKa=2.86
Is aspirin a strong acid?
Salicylic acid has a pKa of 1.96 and acetylsalicylic acid (Aspirin) has a pKa of 3.48. Therefore salicylic acid is the stronger acid.
What is the PKa of chlorosulfonic acid?
According to me, The pKa of chlorosulfonic acid is approximately -1.6.
What is pKa in chemistry?
It refers to the acidity of the fatty acid (which make up the oils). Every fatty acid is composed of a non-polar long chain of hydrocarbons (carbon and hydrogen) and a polar head made up of Carboxylic ACID. Every acid has something called pKa which determines the acidity of that acid.The bigger the pKa (e.g. 25), the weaker the acid.The smaller ther pKa (e.g. 2), the stronger the acid.
H2SO3 or HCl the strongest acid?
H2SO3 is a weak acid, pKa=1.8, HCl is strong, pKa<<0
How do you determine the pKa value of an organic compound for HPLC method?
the organic compound three kind normal, acid and basic compound for acid compound the pKa from 3 to 5, normal pKa around 7 and basic compound more than 7 also you can know the kind of organic compound from structure that you can see acidic or basic grope like carboxylic acid or amine.
What is the pka value of ether?
The pka of a protonated ether (the conjugate acid) is about -3.5
What is stronger vinegar or carbonic acid?
Acetic acid (from vinegar) is stronger, though mono-basic. pKa = 4.77 Carbonic acid (H2CO3) is di-basic. pKa,1 = 6.36 and pKa,2 = 10.25
What is pka value for sodium bicarbonate?
There are two answers: bicarbonate has two pKa's - because bicarbonate can gain a proton to become carbonic acid or lose a proton to become carbonate. Two reactions; two pKa's. The pKa for bicarbonate carbonic acid reaction is 6.4 The pKa for bicarbonate carbonate reaction is 10.3 Both pKa's are temperature sensitive.
