Acid Ka A HNO2 4.50×10-4 B HClO 3.50×10-8 (1) The acid with the smallest value of pKa is     (2) The weaker acid is

Q: Which of the following is the strongest acid? Group of answer choices HNO2, Ka = 5.6 × 10−4 HCN, Ka…

A: The pH indicates the acidity or basicity of the solution. The pH scale ranges from 0 to 14. The…

Q: Based on the information below:   HX(aq)+Y1-(aq)HY(aq)+X1-(aq)Keq>1   Which of the following is the…

A: Applying concept of keq  variation with pka value.

Q: 3.) а.) Provide correct structures for the conjugate acid and conjugate base for the compound…

A: If in a compound, two basic centres are present then that atom will undergo protonation to give…

Q: B. Rank the following acids from strongest to weakest, i.e., lowest to highest pKa value. (1)…

A: "Since you have posted multiple questions , we are doing first 2 for . If you want other question to…

Q: If the pKa of HCN is 9.21 and the pH of an HCN/NACN solution is 9.23, then a) [HCN]>[CN-]…

A: pH = 9.21 pKa = 9.23

Q: A triprotic acid (H3A) has the following pKa values: • pKa1 = 3.0 • pKa2 7.0 •pKa3 = 11.0 %3D Using…

A: The acidic strength of a solution is directly proportional to the value of dissociation constant of…

Q: What is the conjugate base to H2PO−3H2PO3− ? a. HPO2−3HPO32−  b. HPO−3HPO3− c. PO3−3PO33− d.…

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Q: What's New Activity 3.1 : Identify the acid, base, conjugate acid, conjugate base, and conjugate…

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Q: Assuming that the forward process is favored, match the compounds to their role in the acid-base…

A: In given acid base equation, acid and base react with each other to give salt.

Q: A diprotic base (B) has pk, values of 3.36 (pKh1) and 6.72 (pK2).

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Q: Chrome File Edit view Histor b Answered: Calculate the x M Inbox (463) - sydneyshe x P Everybody…

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Q: Arsenic acid, a triprotic acid, has 3 pKa values (2.24, 6.96, and 11.50). What is the predominate…

A: We will see the predominant form of arsenic acid at a pH = 4.00  You can see below details…

Q: Complete the following table.   Acid Ka pKa A H3PO4 7.5×10-3   B CH3COOH 1.8×10-5   The weaker…

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Q: The pKa of benzoic acid is 4.2 Using henderson hasselbalch equaequation calculate the ratio of…

A: Given:: pKa = 4.2 pH = 7.9 ratio [R-COOH] : [R-COO-] = 1: ?

Q: Consider two acids: HCO,H (formic acid, pKa = 3.8) and pivalic acid [(CH3)3CCO2H, pKa = 5.0]. (a)…

A: Given in the question, Formic Acid, HCOOH = pKa = 3.8 Pivalic Acid,, (CH3)3CCO2H = pKa = 5.0 As we…

Q: The acid HA has pKa  7.00. (a) Which is the principal species, HA or A, at pH 6.00? (b) Which is…

A: Ka is the acid dissociation constant, which establishes relationship of dissolution of weak acid in…

Q: What is the relationship between the value of pKa and the strength of a weak acid Differentiate…

A: pKa of any acid is given by  pKa = -log(Ka ) where Ka = dissociation constant of acid

Q: HA has a pka of 15, while HB has a pka of 5. The stronger acid is The stronger conjugate base is…

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Q: A weak acid has a pKa of 7.6. What is the proportion of A- to HA if pH is 9.08?  Round to one…

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Q: 15. Given Kb of NH3 = 1.8 x 10-5 and Ka of HCN= 4.8 x10-9 predict whether an aqueous solution of…

A: Basic

Q: Complete the following table, which lists information about the measured acid dissociation constants…

A: Acidic strength of acid is directly proportional to ka and inversely proportional to the pka value

Q: Ephedrine (C10H15ON) is a base that is used in nasalsprays as a decongestant.(a)  Write an equation…

A: Ephedrine is a medicine that stimulates the central nervous system. As mentioned, it used as a drug…

Q: Find the pKa of the acids (or conjugate acids of the given base) below. Then, draw the form that is…

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Q: Answer True or False:  If an acid has pKa of 2.1, it is a strong acid. ________  HCl and HNO3 are…

A: pKa = 10-pH, a strong acid or base is defined by its ability to furnish H+ or OH- solution.

Q: If Ka for the acid is 2.51 x 10-5 at 25°C, what is the Kb of the conjugate base? a. 3.98 x 1010 b.…

A: Acid can be defined as the substance that give hydrogen ions in solution.and a strong acid have…

Q: 3. Which one of the following answers represents the order of increasing bacisity for compounds the…

A: Basicity is tendency to donate electron pair and it depends on how easily it can be donated or…

Q: 12. Circle the acid that is most acidic using the factors we discussed regarding pka. In a short…

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

A: Imagine an acid HA. Assume it dissociates in the following way- HA ⇌ H+ + A- The acid dissociation…

Q: 13.Which of the following is the weakest acid? Group of answer choices H2SO4 HClO4 H3PO4 H4SiO4…

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Q: HC2H3O2 + H0 H30* + C2H302 H2O Acid Base No Answers Chosen No Answers Chosen Conjugate Acid…

A: The Acid, Base, Conjugate Acid, Conjugate Base of the above reaction is given below

Q: Calculate pKa' according to given equations. Dissociation of carbonic acid to bicarbonate ion and a…

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Q: assign the acid its appropriate pKa

A: 2-oxopropanoic acid is a strong acid than 3-oxobutanoic acid because of the electron withdrawing…

Q: Given the following Ka values, which anion is the strongest base? (LOOK AT PICTURE)   A. HCO3-…

A: The given values of Ka:

Q: QUESTI UN 15 . Which of the following approximate pka ranges for the following acids is correct? You…

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Q: 1. Which is the stronger acid between: Compound A - pKa is 10 Compound B - ka is 1.5 × 10^-16

A: Given information,  Compound A - pKa is 10 Compound B - ka is 1.5 × 10^-16

Q: Weak acids are not equally weak! Rank the following acids fromstrongest to weakes. For theacids in…

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Q: Select the best matches for the conjugates below. 1. H2SO4 2. HSO3 Conjugate base of H2SO3 3. HSO3…

A: Given, H2SO3 and HPO32-we are asked to write the conjugate base of H2SO3 and conjugate acidof…

Q: Rank the solutions below in order of increasing acidity.   Rank the solutions below in order of…

A: The pH of each given solution is determined as follows,

Q: A 0.200 M solution of diethylamine, a substance used in insecticides and fungicides, is only 3.9%…

A: Diethylamine((C2H5)2NH) is a weak base that dissociates in water as follows:…

Q: The pKa for Molecule A is 10 units lower than Molecule B. Molecule A Draw conjugate base of A :B H H…

A: Given is, molecule A has pKa=10 and molecule B has pKa =20.

Q: lowest to highest pKa. Remember, a low pKa is more acidic than a high pKa. OH A) 3< 4 < 1 < 2 B) 4 <…

A: Ans  Acidity is inversely proportional to the pka value

Q: Given the following values of pKa, determine which is the weakest base of the answers listed. Acid…

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Q: 6. Given a Ka = 1.5 x 10-8, calculate the a. pKa: b. Kb: c. pKb: d. Briefly explain why you think…

A: Ka = 1.5 x 10-8  pKa = -log Ka pKa = - log 1.5 x 10-8 pKa = 7.82

Q: Complete the following table, which lists information about the measured acid dissociation constants…

A: we know, pKa=-logKa 1) For acid A given, Ka = 4.×10-10

Q: Which acid is the strongest?

A: four types of acidic compoun Given a all compounds is Ka value.  Which is a strongest acid.     Ka…

Q: Complete the following table, which lists information about the measured acid dissociation constants…

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Q: Compare compounds I and Il and choose the best statement from the list below. N. vs. column I…

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Q: 14. If the pH at half way to the first equivalence point is 3.20, pH at first and second equivalence…

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Q: A relatively strong acid will have a Group of answer choices a.- smaller value of Ka and a larger…

A: Strong acids are those acids which completely ionizes whereas weak acids are those which undergo…