What is the [HA-] (in mol L-1) of a solution containing 1.427 mol L-1 of a diprotic acid with pKA1 = 4.96 and pKA2 = 8.3 ?

Q: Another way to express acid strength is by using pk b:pK a =−logK a Another way to express base…

A: Acidic strength and dissociation constant (Ka) are interrelated concepts. Lower is the value Ka,…

Q: Question 3 What must be the minimum concentration of cyanoacetic acid in 1.00L buffer solution of a…

A: Due to technical error ,unable to provide you the solution. Please resubmit the question once again

Q: What fraction of iminodiacetic acid is in each of its four forms (H, A H,A, HA, A) at pH 3.357? The…

A: pH=3.35=-log [H+]or, [H+]=10-3.35=4.47×10-4

Q: Calculating percent dissociation of a weak acid A student prepares a 0.55 M aqueous solution of…

A: Observing the table shows that trimethylacetic acid has only one pKa value hence one proton from it…

Q: At pH 11 the phenol deprotonates, Why is the pka now 10, give relationship between pka and pH during…

A: The given structure is,

Q: BH(+) + H₂O. For the following named bases: Consider the reaction B: + H3O+ draw the structure of…

A: Basicity is defined as the electron donation ability of a molecule.  If it is able to donate…

Q: What is the pKa of Sylvianic Acid if it is 2.3% dissociated at pH = 10.26?

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Q: The products are favored in the acid-base reaction: HI(aq) + NH3(aq) NH4 (aq) +1(aq). True or False…

A: True

Q: Order the following acids with respect to increasing acidity L. Fluoroacetic acid IL.…

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Q: Given the ka values of the following monoprotic acids: hypochlorous acid (HClO, ka = 3.3´10-8),…

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Q: Which of the following approximate pKa ranges for the following acids is correct?  You don't need a…

A: The pKa is calculated by taking the negative logarithm of Ka of the given substance. pKa=-log(Ka)

Q: Which has the larger numerical value? Q.) The pKa of a strong acid or the pKa of a weak acid

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A: Dear student I have given answer to your question in the image format.

Q: As the pka of an acid increases, the acid will be: O Stronger O Weaker O Converted to basic solution…

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Q: Question 19 Determine the predominant form of the following drug at pH 7.4. The pK₂ of the ammonium…

A: The objective is to determine the predominant form of the given molecule. The molecules will get…

Q: For the pair of molecules H2PO4 and H3PO4, H3PO4 is the conjugate base O True False

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Q: Place the missing compounds in the flow diagram for the separation of a strong acid ,a weak acid , a…

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Q: 2.69 Label the Lewis acid and Lewis base in each reaction. Use curved arrows to show the movement of…

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Q: One way to determine the predominant species at equilibrium for an acid-base reaction is to say that…

A: The given data is:

Q: 1 6. The pKa of benzoic acid is 6.5 x 10-5. Prepare an ICE table and calculate the pH of a 0.10 M…

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Q: What is the fraction of association (a) for each potassium propionate solution? The K₁ of propanoic…

A: Association reaction is defined as the one in which two molecules associates and leads to the…

Q: For each value of Ka, calculate the corresponding value of pKa. Which compound is the stronger acid?…

A: pKa of any acid can be calculated as: pKa=-logKa Ka is dissociation constant of an acid. Larger the…

Q: Q-2: Which of the following acid give harder soap stearic acid or lauric acid? Why?

A: To determine which of the acids, stearic acid or lauric acid, gives harder soap and why, we need to…

Q: Which solution has the highest concentration of H3O+: a 0.50 M solution of acetic acid (CH3CO2H),or…

A: ∝=Degree of Dissociation           HA⇌        H+   + A-t=0      C            0          0t=eq…

Q: A solution has 2.42 mmol L-1 total phosphate (pKa = 2.1, 6.8, 12.4). If the pH of the solution is…

A: We need to use the Henderson Hasselbalch equation to calculate the concentration.  The given pH is…

Q: The Kb for a weak base is 4.5 x 10-6.  What will be the Ka for its conjugate acid at 25 oC? Group of…

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Q: H3PO4 has three acidic protons with the following K, values: K₁1 = 7.1 x 10-3 Kaz= 6.3 x 10-8 K₁3 =…

A: The question is based on the concept of chemical equilibrium. we need to identify the predominant…

Q: A:) + H3O+). For the following named acids: 1a) Consider the reaction AH(+) + H₂O a) draw the…

A: Acidity is defined as the ability of a molecule to release protons.If a compound easily donates…

Q: What fraction of iminodiacetic acid is in each of its four forms (H3AH3A H2A−H2A−, HA2−HA2−, A3−A3−)…

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Q: For a solution of formic acid, a weak acid with a pKa of 8.74, at what pH will the concentration of…

A: Using Henderson-Hasselbalch equation for buffer solution :-  pH = pKa + log([conjugate base]/[weak…

Q: H2SO4 + NH3  ====   HSO4- + NH4+   .  Which of the products is a conjugate base?

A: Which of the products is a conjugate base?

Q: what would be product of the acid base reaction below H— F + H—Ö— -H

A: Since you have posted multiple question, we will provide solution to the first question.Please…

Q: Nitric acid (HNO3) is a strong acid that completely ionizes when dissolved in water (pKa = -1.30).…

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

A: Benzoic acid (C6H5COOH) is a weak monoprotic acid. The partial dissociation reaction of benzoic acid…

Q: Acid Conjugate base Acid H2CO3 HCO3 Base Strength Strength Increases Increases H2PO4 HPO,- (1) The…

A: Ka is the tool to measure the acidic strength of a given acid

Q: 5. Use the following reaction to answer each part of this question: NaCN + OH HCN (a) Label the…

A: Acids and bases are two fundamental categories of substances in chemistry:Acids: Acids are…

Q: The pKa of acetic acid is 4.75. What is the ratio of the concentration of sodium acetate to the…

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Q: Use the information in the pK, table to rank the molecules in order of decreasing basicity. For…

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Q: P-nitrobenzyl alcohol is more acidic than benzyl alcohol explain the statements

A: A nitro group is an electron-withdrawing group. Generally, an electron-donating group makes the…

Q: What fraction of iminodiacetic acid is in each of its four forms ( H3A H2A− , HA2− , A3− ) at pH…

A: Given that: pH of iminodiacetic acid is 3.651. pKa1 is 1.85. pKa2 is 2.84. pKa3 is 9.79.

Q: What fraction of iminodiacetic acid is in each of its four forms ( H3A H2A–, HA2-, A3– ) at pH…

A: Given: pKa1 is 1.85. pKa2 is 2.84. pKa3 is 9.79. pH is 3.651. pH is defined as the negative…

Q: Phenylacetic acid (C₂H₂CH₂COOH) has a K₂ of 4.9 x a 10-5. Calculate for the pH, pOH, [H+] and [OH-]…

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Q: Phosphoric acid (H3PO4) has 3 dissociable protons with the pKa values shown. Which form of…

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Q: = 4.00 and pK, = 8.00. 10-23. The diprotic acid H,A has pK| (a) At what pH is [H2A] = [HA¯]? (b) At…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Given the following information determine which of these acids is the strongest? Ka for boric acid…

A: Given : Ka and pKa values for some of the Compounds are given  To find : strongest acid  Solution :…

Amines

Amines are organic compounds with a nitrogen atom having a lone pair of electrons on it. They are derived from ammonia (NH3) wherein hydrogen atoms are substituted by an aryl or alkyl group.