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

Q: Given the following pKa values, which is the strongest base of those listed in the answers? HNO2…

A: The thumb rule to determine the basic strength is that “the weaker the acid, stronger will be its…

Q: lowest pKa to highest pKa.

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Q: The benzylammonium ion (c6H5CH2NH3+) has pka=9.33 and the propylammonium ion has pka=10.71. Which is…

A: Given:-              The benzyl ammonium ion (c6H5CH2NH3+) has pka =9.33 and the propyl ammonium ion…

Q: PART A Ammonium cation (NH4 +) has a pKa of about 9.3. What is true of this compound when the pH is…

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Q: table below contains the pKa values of four weak acids.  Which acid is the weakest?

A: Given :-    pKa HF 3.14 HNO2 3.39 H2SO3 1.81 H2CO3 6.37 To identify :-…

Q: Given that pH + pOH = 14 and that the concentration of water in a solution of water is 55.5 M, show…

A: Introduction: The value of equilibrium constant  Ka for weak acid in an aqueous solution predicts…

Q: The substance trimethylamine is a weak nitrogenous base like ammonia. Write a net ionic equation to…

A: Bronsted-Lowry acid-base theory: According to the Bronsted-Lowry acid-base theory, acid is a…

Q: A diprotic acid has a pKa1 = 3.10 and pka2 = 6.50. What is the pH of a 0.10 M solution of this acid…

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

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Q: Rank the acids in increasing pKa. (lowest pKa first) NH3 OH2 NH3 OH2 NH3 NO2 NO2 ÓCH3 1 2 4 5

A: Given

Q: Arrange the following 0.01 M substances in order of increasing pH. HNO3: pKa = -1.38 HNO2: pka =…

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Q: H2O has a pKa value of 15.7 and HF has a pKa value of 3.2, which is a stronger base, HO- or F-?…

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Q: Calculate the pH and % ionization for the following a. 0.10 M CH3NH2; pKa = 10.657 b. 0.02 M…

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Q: 25. Rank the following in the order of decreasing acidity (i.e., more acidic > less acidic)? OH OH…

A: Acidic strength directly proportional to minus mesomeric effect (-Meffect ).and minus inductive…

Q: Fourth Quarter GENERAL CHEMISTRY 2 Name: Strand, Gr. Level &Section: Date: ACTIVITY No. 3 -…

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Q: Arrange the following 0.01 M substances in order of increasing pH. HNO3: pKa = -1.38 HNO2: pKa =…

A: Given data HNO3:  pKa= -1.38 HNO2:pKa = 3.14 HClO: pKa = 3.18 NH3: pKb = 4.74 CH3NH3: pKb = 3.36…

Q: SUBSTANCE ACIDIC OR BASIC pH Fanta Orange Lux Soap Тар Water Colgate Toothpaste Handy Andy…

A: pH scale is from 1 to 14. When pH of the solution is less than 7 then it is acidic. If pH is greater…

Q: If the pKa of HCHO 2 is 5.74 and the pH of an HCHO 2/NaCHO 2 solution is 6.11, which of the…

A: A buffer solution is a that type of solution in which if we add a small amount of acid or base then…

Q: 22) Penicillin G (shown below) has two amide functional groups. One of the amide nitrogens is much…

A: A substance is called Lewis base if it has availability of free lone pair of electrons to donate.  N…

Q: The pKa of a basic drug is 8.5. Calculate the percent of an ionized drug present at a pH of 7.4.…

A: Given, pKa of a basic drug = 8.5  pH of the solution = 7.4     Required,…

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: Which of the following acids has the strongest conjugate base? The pKa value for each acid is given…

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Q: Most drug molecules are weak acids, hence they are expected to have: I. High Ka II. High pKA III.…

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Q: Lowest pKa OH OH CI NH2 HO

A: Acid dissociation constant and pKa: An acid dissociates as follows- The dissociation constant(Ka)…

Q: . Magnesium hydroxide is used in many antacid medicines. This is due to all of the reasons below…

A: Magnesium hydroxide is used in many antacid medicines. This is due to all of the reasons  a.…

Q: The pKa of CH3COOH is 4.8 and the pKa of HCOOH is 3.8. Given this information, one knows that HCOO-…

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Q: Order the following acids from lowest to highest pKa value. Start with the lowest pKa as number 1.…

A: Order the given acids from lowest to highest pKa value = ?

Q: The curves below are for an unknown acid, HUn(aq). What species is represented by curve B and what…

A: Curve B represents an acid because species  is unionised in acidic medium whil 100% ionised in basic…

Q: Me Me Me

A: The hydrogen atom attached to an electronegative atom or at an alpha position to the carbonyl group…

Q: 2. Out of the following, which is incorrect? a) The Ka of an acid-base pair conjugate characterizes…

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Q: Which of the following best describes the molecule below? 0000 strong acid neutral weak acid Ostrong…

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Q: Which of the following acids is the strongest? a. pKa= 3.9 b. pK= 7.1 Br NH3 HO NO2 с. рКа- 10.1…

A: A substance which can lose H+ ions easily is said to be acid Three acids (a) , (b) , (c)  and their…

Q: Rank the acids below in order of increasing acidity (start from least acidic to more acidic). HO.…

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Q: Calculate the pKa value for each of the following acids: Remember to use the rules for significant…

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Q: 3. Rank the following acids in order from strongest to weakest. НА (pК, 3D 2.55) Strongest Acid: H2Z…

A: Acid which liberates H+ easily in the solution is said to be strong acid.

Q: The ammonium ion (pKa = 9.25) has a lower pKa than the methyl ammonium ion (pKa = 10.66).  Explain…

A: Given that pKa of ammonium ion(NH4+) = 9.25 pKa of methyl ammonium ion ( MeNH3+) = 10.66 Concept: A…

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: 5. Name the following, determine which is more acidic and determine the charge of each in pH 1 and…

A: The strength of an acid depends upon the stability of its conjugate base. The compound formed by the…

Q: Which of the following produces the strongest conjugate base? a.HCOOH(pKa = 3.75) b. HClO(pKa =…

A: Conjugate base of any acid is given by the ion formed after removing the proton from it.

Q: Which correctly shows the ionization of H3PO4 in water? H3PO4(aq) + H2O(l) ⇌ H3O+(aq) + H2PO4–(aq)…

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Q: Select the stronger acid in set given. Q.) Phenol (pKa 9.95) and benzoic acid (pKa 4.19)

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Q: Calculate pH of water solution of Hydrosulphuric acid with concentration of 0,050 M (pKa=6.99)

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Q: A weak acid has a pKa of 7.48. What is the pH if the solution has 6,753 times more HA than A-?…

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Q: Given two bottles of which contains a 0.1M solution of an unidentified acid. One bottle is labeled…

A: Two bottles contain 0.1 M of the unidentified acid as follows- Bottle 1: Ka = 7.2  x 10-4 Bottle 2:…

Q: which of these acids is the strongest? Ka for boric acid is 7.3 × 10–10 pKa of acetic acid is 4.75…

A: pKa of an acid is mathematically represented as shown below: pKa = -logKa Hence, we can write: Ka =…

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

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Q: Given that a weak acid has a pKa of 3.45, find the % ionization of a 0.345 M solution of weak acid.

A: Let the weak acid be HA,its concentration is 0.345,and degree of dissociation/degree of ionisation…

Q: The pKa of epinephrine is 8.55. In a solution of what ph will epinephrine have a charge and what…

A: Epinephrine is a hormone and neurotransmitter that is used to treat life-threatening allergic…

Q: Answer the following questions about Ka and pka (a What is Ka (b) Does a strong acid have a greater…

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Q: These oxyacids all contain iodine. Predict the acid with the smallest pK. O HOIO2 O HOIO О НО O…

A: Acidity is proportional to Ka . pKa = -logKa pKa is inversely proportional to acidity.

Polymers

Polymers are naturally occurring or synthetically produced large molecules or compounds which are made up of series of repeating units called monomers. They are joined together by chemical bonds. The term polymer is coined from Greek roots meaning 'many parts' and are found almost everywhere from the plastics bags to the rubber of our tires to our DNA strands.