The pKb for the propanoate ion, CH3CH2CO3 , is 9.126. What is the value of Ka (NOT the pKa) for propanoic acid, CH3CH2CO3H?

Q: The pKb of the organic base nicotine (denoted Nic) is 5.98. Write the corresponding protonation…

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Q: What is the pKb of the conjugate base of a weak acid that has a pKa equal to 3.52? (temperature is…

A: Given that : pKa = 3.52  pKb = ?

Q: What is the pKb of the conjugate base of a weak acid that has a pKa equal to 5.29 at 25ºC?

A: To get the pKb of the base (B) you MUST subtract the pKa from 14. The reason for this is that the…

Q: What is the pH of a 0.10 M solution of an acid with a pKA of 8.4?

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Q: What will be the pH of a buffer solution containing an acid with a pKa of 5.4 with an acid…

A: We have to predict the pH of buffer solution.

Q: What is the pH of an aqueous solution containing 0.50 mol L–1 ethanoic acid, 0.30 mol L–1 sodium…

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Q: Benozic acid (C6H5COOH) has a pKa of 4.20. What is the ratio of the acid to its conjugate acid at a…

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Q: The dissociation constant, ka, of a weak acid is 5.9 x 10-6. What is the pKa of the acid?

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Q: Determine the pKa of an acid; a 4e-3M solution of which has a pH of 2.4

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Q: Which of the following acid/ conjugate base pairs would function best as a buffer at physiological…

A: 1- First we should know about physiological pH it's value is 7.40 it's maintain the blood pH because…

Q: A 0.119 M solution of Covidenol, a weak acid, has a measured pH of 3.45. Determine the pka of…

A: For weak acid  PH= (1/2)(pka-log c)

Q: 4. Write the products of the following acid-base reactions: OH NAOH HO. pK = 4,5

A: This is simple acid base reaction, resulted in formation of salt and water.

Q: Phosphoric acid is a tri-acid. It is often associated to biological molecules (i.e. proteins,…

A: When given pH < pKa for a functional group, it gets protonated. When given pH > pKa for a…

Q: Nitrous acid has a Ka = 7.1 x 10–4.  What is its pKb? 7.10 10.85 4 x 10–11 3.15

A: Given: The Ka for nitrous acid = 7.1 × 10-4 We have to calculate the pKb for nitrous acid.

Q: What is the pKb of an unknown weak acid if the pH of the solution was measured to be 4.52. when…

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Q: , NH +? What is the pK of NH +?

A: Acid forms conjugate base by donating proton (H+) while base forms conjugate acid by accepting…

Q: At what pH is the concentration of a compound, with a pKa = 8.4, 100 times greater in its basic form…

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Q: A. -3 OH + Na₂CO3 (aq) B. 6.5 C. 10.3 products D. 15.5

A: H2CO3 is a weak acid. It is known as carbonic acid. The pKa's of carbonic acid are 6.5 and 9.9 since…

Q: Blood has a normal pH of about 7.40. Lactic acid has a pKa of 3.08. Is lactic acid…

A: pH of blood = 7.40  pKa of lactic acid = 3.08

Q: The pKa of a particular weak acid is 4.85. What is the pH of the weak acid solution when exactly…

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Q: Acetic acid (pKa = 4.75) is contained in vinegar. What is the pKb of the conjugate base of acetic…

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Q: Consider the Ka values for the following acids: Cyanic acid, HOCN, 3.5 x 10–4 Formic acid, HCHO2,…

A: Option e is correct.Explanation:Step 1:

Q: Phenoxide ion (C,H5O") is a weak base, with K, = 7.70 x 105. What is the pKa of the phenol, C,H5OH…

A: Solution :       Bronsted-Lowry distinguished acid and base on the basis of their proton donating or…

Q: At what pH is the concentration of a compound, with a pKa = 3.7, 10 times greater in its acidic form…

A: Given information: pKa = 3.7 [Acid] = 10[Base]

Q: For an acid HA with a pKa of 5.2, what is the ratio of the concentration of the conjugate base to…

A: The dissociation reaction of acid HA can be written as  => HA ------> H+ + A-  Conjugate base…

Q: Fill in the left side of this equilibrium constant equation for the reaction of diethylmethylamine…

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Q: , what is the pK, for the base?

A: Given: The Ka of the conjugate acid is 8.59×10-4

Q: Calculate the pH of a 0.24 M solution of sodium lactate. The pKa of lactic acid is 3.86.

A: Sodium lactate is the salt of strong base and weak acid. Its solution will be basic in nature.

Q: Citric acid, a triprotic acid, has 3 pKa values (3.128, 4.761, and 6.396). What is the pKb of…

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Q: For an acid with a pKa of 5.00, what is the pKb of its conjugate base?

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Q: The pka of a particular weak acid is 4.85. What is the pH of the weak acid solution when exactly…

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Q: Define pKa and provide at least one method for determining its value.

A: The pKa value is one method used to indicate the strength of an acid.