From memory, write the estimated pK, values for the protons shown. 2. н Он н н H2N ОН

Q: 1. When comparing two compounds, the compound with smaller pka value means that it is

A: pKa = -log Ka  log Ka = -pKa  Ka = 10-pKa

Q: Draw the two daughter ions that would be observed in the mass spectrum resulting from an alpha…

A:

Q: 5. The following compound has three acidic protons. The approximate pka's of these protons are 10,…

A: The pKa value indicates the acidic nature of the given compound. Smaller the pKa stronger will be…

Q: Match each compound with its appropriate pKa value. Q.) Benzoic acid, cyclohexanol, phenol pKa 5…

A: Compound with their pKa values:

Q: C,H140 IR: 1715 cm MS: M* at m/z 114, a-cleavage fragment at m/z 71. no McLafferty rearrangement…

A: Ketones contains the carbonyl group and carbonyl groups shows IR spectra around 1715cm-1. If two…

Q: Marked out of 1.00 Flag question Time left 0:49:41 pka of methanol is higher than pka of water due…

A: We know,    pKa is a number that describes the acidity of a particular molecule.  Higher the pKa…

Q: Acids and Bases Indicate the approximate pKa values of the protons labelled a-e in the molecule…

A:

Q: Histidine is an important catalytic residue found at the active sites of many enzymes. In many…

A: Concept introduction: An amino acid that consists of alpha amino group, a carboxylic group and…

Q: e the indicated sets of protons as homotopic, enantiotopic, or diastereotopic

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Rank the labeled protons in the following molecule in order of increasing pKa.

A: The given compound is, pKa value is inversely proportional to acidity. Therefore, greater the…

Q: H D DH meso only 1| D, Pa Caco, Phco,, quinoline ROH 21 Na. NH, lkal, OH 1| NANH, NH, THE 21 D,.…

A: 1 . Lindlar catalyst - heterogeneous catalyst comprising of Pd deposited on Calcium carbonate or…

Q: Why is the pKa of the Ha protons in 1-acetylcyclohexene higher than the pKa of the Hb protons?

A: The oxygen atom being highly electronegative draws the pair of electron towards itself due to which…

Q: Assign the corresponding fragments (a e) to the 1H NMR spectrum (measured in CDCI3). below (- a a

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Q: Primary alcohols have a strong peak at m/z = 31. a. What fragment is responsible for this peak? b.…

A: a. The primary alcohols are said to has stromg peaks at m/z = 31 which is because of the cleavage of…

Q: PKA

A: pKa and Acidity are inversely proportional to each other. If Compound is most acidic than it's pKa…

Q: Label the protons in attached highlighted CH2 group as enantiotopic, diastereotopic, or homotopic.

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Q: Which of the indicated protons absorbs further downfield? 11 На Не Br HB Hp 03:58:11 Multiple Choice…

A: In this given structure the carbon is attached with bromine and fluorine on both sides and we know…

Q: Rank the labeled protons in the following molecule in order of increasing pKa.

A: pKa value is inversely proportional to acidity. Therefore, greater the acidity of a hydrogen less…

Q: When n-propyl alcohol reactS with water in such a way that the lone pair of electrons in the alcohol…

A: With increasing in electronegativity of the atom. It has more prone to  attract electrons towards…

Q: Given the normal blood pH is 7.35, what is the expected pKa of H2CO3 ([H2CO3] = 0.50M and [HCO3-] =…

A:

Q: Rank the labeled protons in the following molecule in order of increasing pKa. PHO H,

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Q: The side chain of acetyl-L-lysine-OMe has a pKa=10.5 and its acid-dissociation reaction  is shown…

A:

Q: The isoelectric point of a zwitterion with an acidic pKa of 3 and a basic pKa of Select one: O a. 9…

A: Given pKa acidic =3 pKa basic = 6

Q: 15) The two hydrogen atoms shown as Ha and Hb in the following molecule are: A) Homotopic protons B)…

A:

Q: 4. Here are the pKa values for Question 2. Did you get the answer correct in which direction the…

A: Given :  pKa of H2O = 15.7  pKa of NH4+ = 9.8  pKa of NH3 = 33  Since pKa = -log Ka so higher is the…

Q: The 1H NMR for a dipeptide recorded in D20 is shown below. (i) Explain what has happened to the H-…

A: When molecules are placed in a strong magnetic field, the nuclei of some atoms will begin to behave…

Q: In any 'H NMR spectrum, the [a] indicates number of protons.

A: When we study the interaction of electromagnetic radiation with matter then this study is known as…

Q: ratio What is the Base Target p H=9.91 AC?d /Base pair N Hy Cl/NHz %3D

A: We are here asked to find Baseacid ratio for the pair NH4Cl and NH3   They  form a buffer a solution…

Q: 2 Rank the labeled protons in the following molecule in order of increasing pK. He H. он,

A: Stronger the acid , smaller the pKa value. pKa = -logKa

Q: Match each compound with its appropriate pKa value. Q.) 4-Nitrobenzoic acid, 4-nitrophenol,…

A: pKa value is the measure of acidity of the solution. More the pKa,lesser will be the acid…

Q: hich protons are in the region from 7.0 – 8.0ppm and at 2.3ppm

A: The answer is as follows:

Q: Q16. Identify the two acid/conjugate base and base/conjugate acid pairs in the following acid/base…

A: Given : Reactants and products of acid base reaction.  To find : Conjugate acid and conjugate Base…

Q: 1. Given the following 'H NMR spectra. A. Draw structure of compound. В. Label peaks (Ha, Hb, He,…

A: The structure of the compound [1] is shown below.

Q: Draw the mechanism for the following acid/base reactions. Give the direction of the equilibrium…

A:

Q: Rank the labeled protons in the following molecule in order of increasing pKa.

A: The given molecule contains three labelled protons which are labelled as Ha, Hb and Hc. The pKa of a…

Q: For the molecule shown, match the following pK, values to the proton in the box provided: 48, 25,…

A:

Q: ha or beta. OH OH

A:

Q: H H-C-COOH pKa 2.34 NH3 pka = 9.60 A) 7.50 В) 3.63 C) 5.97 D) 7.26 E) 11.94

A: NOTE: There is a typo error in the question. It will be Pi of glycine and not pain. Pi means the…

Q: Given the reaction- AE= (+q) + (- w) = 48 J + (-72 J) = -24 J. What reaction is shown?

A: From the first law of thermodynamics, we know --- ∆E = q + w where E is the internal energy, q is…

Q: Q16. Identify the two acid/conjugate base and base/conjugate acid pairs in the following acid/base…

A: A base is the one that abstracts the acidic proton from the substrate because it consists of a lone…

Q: NaH O Meo- Ome

A: The reactions involving organic compounds are called organic reactions. There are different types of…

Q: (a)Draw Histidine in all its protonated form and include the pKa's where appropriate. (b) Calculate…

A: Given Values: pK1 = 1.8  pK2 = 9.2 pKR = 6.0

Q: 1) Consider the following compound: (4E,2R)-6,6-dimethylhept-4-en-2-ol. Draw the molecule below and…

A: In the question, name of a compound is given and its structure is asked to draw. Also, the mechanism…

Q: 1. Given the following table of AH, a. Calculate AH for the reaction (14): 2 NaF + MgS - Na,S + MgF,…

A: Given reaction is -> 2NaF + MgS -> Na2S + MgF2

Q: Find the pKa Values of attached Carbon Acids:

A: The acidity is the property of the molecules to lose H+ ions in the solution. The acidity of the…

Q: In the mass spectrum of 2-pentanol, alpha cleavage is not expected to generate which of the…

A: We have to predict the peak not generated by alpha cleavage.

Q: Rank the labeled protons in the following molecule in order of increasingpKa.

A: The given compound is-                                     Here Ha, Hb, Hc, Hd and He are the…