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: Suppose a 0.048M aqueous solution of sulfuric acid (H₂SO4) is prepared. Calculate the equilibrium…

A: Step 1: H2SO4, or sulfuric acid, is a diprotic acid. It's capable of giving out two protons. It is a…

Q: What is the dominant form of citric aciAcid (a triprotic acid) at pH of 6 (pka1 = 3.128, pka2 4.761,…

A: Henderson-Hasselbalch equation represents a relationship between the pH, the pKa (acid dissociation…

Q: c. CF;CH2OH to answer the a. CH;COOH pK-4.8 below questions: b. CH;CH2NH3 pK,-11.0 pK,-12.4 1) which…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: pKa

A: 1) Using the formula of pKa pKa = -log(Ka)  = -log(1.8×10-5) = 4.74

Q: Consider the following data on some weak acids and weak bases: acid base Ka K, name formula name…

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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: If the pka of molecule 'A' is 2.2, then molecule 'B' will be present in the H3C A COOH neutral…

A: Answer:Presence of -I effect group in the carboxylic acid increases its acidic strength. Higher the…

Q: 14.28 Show how to convert 2-hydroxybenzoic acid (sali- cylic acid) to these compounds:/ COOCH3 (a)…

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Q: What is the ratio of lactic acid (Ka = 1.37x10-4) to lactate in a solution with pH =4.09?   Write…

A: Given  Ka   = 1.37 × 10-4  PH  = 4.09  [ lactic Acid ][ lactate ]  = ?

Q: A:(-) + H₂O(+). 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: explain in great detail why the pKa values are what they are and compare them among the three…

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

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: please find Ka values of Succinic Acid (C4H6O4)

A: Succinic acid is basically a dicarboxylic acid. It has two potential protons to donate so it's a…

Q: Phenal (pka 9 a) and oedium bicarbonate (pkas 10 2) react to torm an equitrium with canjuate bae of…

A: Question 6) Ethanol is not used as the solvent for the extraction of organic compounds from water.

Q: Which of the following is a hydrolysis reaction? F (aq) + H,O (1) S OH" (aq) + HF (aq) 2 None of…

A: In a hydrolysis reaction, the anion or cation or both of a salt reacts with water and gives hydrogen…

Q: an arrow from a reagent write the formula(s) for the ion(s) present in solution. Write the procedure…

A: The answer is as follows:

Q: Propose the relative ratio and chemical structures of the acid form and conjugate base of the…

A: Henderson Hasselbalch equation: pH=pKa+log[base][acid]

Q: Amino acids such as glycine are the building blocks of large molecules called proteins that give…

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Q: similar to the question what is the pKa of formic acid when the pH of buffer is 4.18?

A: Given that, for a buffer solution pH = 4.18. Also, [HCOOH] = [HCOO-]. We have to determine the pKa…

Q: Calculate the pH of the following solutions:4 0.020M potassium acid phthalate solution; Ka = 1.3 x…

A: SOLUTION: We have to calculate the pH and pKa values for the given compound.

Q: The one at pH 9.0 has a concentration of 10^-9 of H+, and the one at pH 10.0 has a concentration of…

A: Here we have to calculate value of x and y

Q: pH 14 pH 8 pH 2 pka ~ 45 H pKa~-20 OH pka ~ 10 NH₂ pka ~30 NH3 pKa-5

A: Charged species will be soluble in water during extractionNeutral species will be soluble in diethyl…

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

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Q: What is not true for a solution containing C5H5NHCN? K₁(C5H5N)-1.7 x 10⁹, K₂(HCN)=6.2 x 10-10 CN- =…

A: pKa  = - log Ka            =  - log (6.2  * 10-10)          = 9.21 (for HCN)pKb  = - log Kb…

Q: AMSTI Station #7 = H,SO, (aq) 2. 1. 3. 4. 5. For this acid, what does the white bead represent? Blue…

A: Answer:Any acidic specie that ionizes partially into the water is called weak acid and an…

Q: Draw the most predominant form of L-aspartic acid in a solution with pH = 2.8. Do not forget to draw…

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Q: Which of the following is strongest acid HA (pka = 1) HB (pka = 2) HD (pa = 3) НЕ (pка — 4)

A: Pka of acid is given by the negative logarithm of Ka i.e pKa = -log Ka where Ka is the acid…

Q: State the fact below ? An acid can be deprotonated by the conjugate base of any acid havinga higher…

A: The formula for pka is shown below.

Q: 40 "C, THF Br (a) (b) (d) (e) OHC -Ph Br Br Ph Ph P-Ph Ph (n Br. Ph (h) Ph Ph Ph Ph Br Ph Oa a

A: The reaction is popularly known as Wittig Reaction. The Phosphorus ylide (g) attacks at the carbonyl…

Q: <CHE154 S20 Ch18 Sec4-6 Exercise 18.62 - Enhanced - with Feedback %3D MISSED THIS? Read Section 18.4…

A: Since at equivalence point of HCl, all the moles of HCl will react with KOH as per the reaction  HCl…

Q: H2PO41- + HS1- -> HPO42- + H2S   In the reaction, H2PO41- is acting as a Bronsted acid In the…

A: According to the Bronsted and Lowry concept, an acid is a hydrogen-containing species (a molecule, a…

Q: 9. In `CH,OH 5. A buffer solution contains H2CO3 and HCO3, resulting in the equilibrium shown by the…

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Q: Which of the following is the most accurate characteristic of ammonia? O a. It is a Lewis acid,…

A: Correct Option :b. It is a lewis base, hence it is a…

Q: Show that HSO3- is an amphiprotic substance using two different, balanced chemical reactions. State…

A: The amphoteric substance is the substance that shows both nature acid as well as the base. The acid…

Q: What is the purpose of phenolphthalein in an acid base titration? It marks when the moles of acid…

A: The reaction of acid and base in presence of an indicator in the laboratory is called titration. The…

Q: Which of the following structures represents the conjugate acid of HPO,2 ? Select one: а. H4PO4* b.…

A: Given: Conjugate acid of HPO42-  is, A base and its corresponding conjugate acid has the difference…

Q: Question and answer provided,can you explain theses answers and highlight them this isn't graded as…

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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: Show the acid-base reaction if the following acid reacts with NaOH: oxalic (C2H2O4) citric…

A: When an acid react with base , a salt and water is formed as product.  This reaction is also known…

Q: Which of the following explains why alpha-amino acids, the building blocks of proteins, are nearly…

A: Strong acids are those in which the conjugate base of this acid is stable. As amino are stronger…

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.