Acid HNO3, 50°C O2N A B

Q: In charts the pKa of acids are often given instead of the Ka values. For the 5 acids below predict…

A: There are two types of bases/acids. One is strong base/acid which is completely dissociable in into…

Q: pka - 4.15 pКa ~ 2.16 O. NH, C pКa ~ 9.58 The structure as drawn shows the molecule having all of…

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Q: a If an acid, HA, dissolves in water such that the Ka is 10000, what is the pK, of that acid? pK, =…

A: Given that: The acid HA dissolves in water  such as: HA (aq) + H2O (l) → H3O+ (aq) + A- (aq) For,…

Q: What is the pKa of an acid?  As the pKa value increases, does the acid strength increase or…

A: The pKa value is  method used for indicate the strength of an acid. pKa is the negative log of the…

Q: Example. Rank the following compounds in order of acidity of the alpha hydrogens. (1 most acidic)…

A: Acidity : Acidity of organic compound depends the Stability of anion after removing Hydrogen…

Q: Which bases can deprotonate acetylene? The pKa values of the conjugate acids are given in…

A: A base accepts a proton to give its conjugate acid.

Q: Ka for boric acid is 7.3 x 10¯10.  What is the pKa of boric acid?   A 4.86   B 9.14   C 8.66…

A: Using relation between ka and pKa , we wi calculate pKa .

Q: Two pKa values are reported for malonic acid, a compound with twoCOOH groups. Explain why one pKa is…

A: The strength of an acid is determined by pKa values. Lesser acidic acid has more pKa and more acidic…

Q: Calculate Ka values from the following pKa’s: (a) Acetone, pKa 5 19.3 (b) Formic acid, pKa 5 3.75

A: pKa = -log Ka Ka = 10-pKa   (a) Acetone, pKa = 19.3 Ka = 10-pKa Ka = 10-19.3 Ka = 5.01 x 10-20   (b)…

Q: What is the dominant form of arsenic acid (H3A) at pH =9.23 ? Given: pKa1 = 2.24 , pKa2 = 6.96, pKa3…

A: At first equivalence point, pH will be given by: pH=pKa1+pKa22=2.24+6.962=4.6 At this point, the…

Q: A weak acid has a pKa of 6.44. If the pH of the solution is 7.22, what percentage of the acid is…

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Q: Assign the pKa's 2.49 , 3.58 , and 4.78 to the compounds shown below. COOH COOH А: B: COOH C: Which…

A: Acidity is defined as the ability of a molecule to donate protons. If it can donate protons easily ,…

Q: Find the suitable base for the following reaction: CH,C(-0)CH, + :B – CH,C(=O)CH: + H:B", The pka…

A: pKa is defined as the negative logarithm of Ka. That is, pKa=-log(Ka) And, Ka measures the strength…

Q: Please help and show answers and explain clearly

A: pKa value is more less acidic nature, this can be explained by deprotonation.

Q: Which of the following is the primary and secondary species of EDTA at pH 2.05? (a) H&Y*, HsY* (d)…

A: EDTA is ethylene diammine tetraacetic acid. PH is defined as negative logarithm of hydrogen ions…

Q: Why does methyl orange have a lower pKa value (pKa~3.5) than methyl red (pKa ~5.1)? Provide detailed…

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Q: 7. Given the pKa information for different acids below, place the following acids in order of…

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Q: Why is the pK of the carboxyl group of glycine (pK = 2.3) less than that for acetic acid (pK =…

A: because conjugation stabilization of the conjugate ACID. That extra proton is stable in the acidic…

Q: 6. The pka of formic acid is 3.750. What is the Ka of formic acid?

A: The answer to Question No. 6 is given as -

Q: 70 100 56 MS-NW-0546 80- 43 60 40 29 31 20 83 98 10 20 30 40 50 60 70 80 90 100 Rélative Intensity

A: Alpha cleavage in mass spectrometry is a characteristic fragmentation of the molecular ion derived…

Q: What is the pH of a solution containing 0.876 mol L-1 of HCl and 1.069 mol L-1 of a weak acid with…

A: Strong acid dissociate completely so, the H+ concentration is more in the solution. And weak acid…

Q: The ammonium ion (NH4* , pKa = 9.25) has a lower pKa than the methylammonium ion (CH3NH3", pKa =…

A: The stronger base is methylamine. Reason :-  pKa is inversely proportional to acidity . It means…

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: Calculate the pH of a 0.12 M solution of hydrocyanic acid (HCN), which has a pKa of 9.31.

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Q: What is the Ka of an acid that has a pKa value equal to 3.93?

A: The pKa value as the negative logarithm of the Ka value: pKa = -log Ka. If we already know the pKa…

Q: xplain simply, by what process this transformation occur; Iodine-131 to Xenon-131

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Q: What is the pKa of nitrous acid; Ka = 4.5 × 10–5 ?  1.62 3.35 4.35

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Q: The K, for acetic acid (CH,COOH) is 1.737 × 10-5. What is the pK, for this acid? pKa = Use the…

A: We know that, pKa is the negative logarithm of Ka. i.e.                     pKa= -logKa We have, Ka…

Q: Solve the attached file

A: Benzene undergoes Nitration in the presence of nitric acid and sulphuric acid. NO2+ acts as an…

Q: Explain the difference in acidity between p-methoxybenzoic acid (pKa = 4.46) and m-methoxybenzoic…

A: Methoxy group has both +R effect due to the lone pair of electrons present on the oxygen atom and -I…

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

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Q: Match the pKa values to the appropriate compound. pKa values: 0.28, 1.24, 2.66, 2.86, and 3.12.…

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Q: If the pKa of an acid is 3.7, what is the Kb value of the acid?

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Q: Find the pKa.pKa. For an acid HA, the concentrations of HA and A- A are 0.075 and 0.025,…

A: Given Values: Concentration of HA = 0.075 M Concentration of A- = 0.025 M pH of the buffer = 6.0

Q: Why does methyl orange have a lower pKa value (pKa~3.5) than methyl red (pKa ~5.1)?

A: We are to discuss why pKa value of methyl orange is lower than that of methyl red.

Q: Benzoic acid has a pKa = 4.20 at a pH of 6.20 the ratio [A-]/[HA] is what? O 1:100 1:50 1:10 1:1

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Q: The pKa values of a compound with two ionizable groups are pK1 = 4.10 and pK2 between 7 and 10. A…

A: The pK2 is to be calculated.

Q: Explain why pyrrole (pKa ~ 17) is a much stronger acid than ammonia (pKa = 36).

A: There are some definitions which can define acids and bases on the basis of their behaviors. Three…

Q: 3. Phosphoric acid is tribasic, with pKa's of 2.14, 6.86, and 12.4. The ionic form that predominates…

A: using the given pka to determine the ionic form that has maximum concentration.

Q: Two pKa values are reported for malonic acid, a compound with two COOH groups. Explain why one pKa…

A: pKa is inversely related to the acidic strength of the compound or Ka value which means greater the…

Q: Calculate the Ka for the weak acid knowing the pKa value is 13.07

A: Acid dissociation constant, Ka represents how strong the acid is in a solution.

Q: A pka - 4.15 pКa ~ 2.16 O. NH, C pka - 9.58 The structure as drawn shows the molecule having all of…

A: We have to calculate the net charge at the physiological pH .

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: Match the following structures to the appropriate pKa value. А. F,CHCOOH B. CI3CCOOH C. CH3COOH D.…

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Q: Phosphorio aoid has pKa 1 2.15, pKa 2-6.82 and pka 3 12.38. At pH= 7.82, what approximate…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: Explain why pyrrole (pKa ~ 17) is a much stronger acid than ammonia (pKa = 36).

A: Pyrrole- It is heterocyclic aromatic compound. It bears nitrogen with lone pair of electron and…

Q: 4. Acid A has a pKa value of 5.71, and acid B has a pKa value of 5.30. Which of the two acids is the…

A: A strong acid is completely dissociated in an aqueous solution. On the other hand, a weak acid is…

Q: Why are the carboxylic acid groups of the amino acids more acidic (pKa - 2) than a carboxylic acid…

A: Given: The carboxylic acid groups of the amino acids = pKa = 2 The carboxylic acid groups of the…