Write equilibrium showing the carbonate anion (CO32-) acting as a Brønsted base in aqueous solution. Identify the conjugate base-acid (or acid-base) pairs and write the appropriate base dissociation constant (Kb) expression. Look up Kb value and compare to Kb of carbonate as 2.1 x 10-4. Did your value fall in the same range?

Q: -7 The acid dissociation constant K, of alloxanic acid (HC,H,N,O,) is 2.24 x 10'. Calculate the pH…

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Q: Calculate the pH of the following acid solutions at 25 °C: (a) 1.0 x 10-4 M H3BO3(aq) (boric acid…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Calculate the pH of a 0.274 M aqueous solution of quinoline (C9H7N, Kb = 6.3×10-10) and the…

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Q: The base-dissociation constant, Kb, for pyridine, C5H5N is 1.4x10-9. The acid- dissociation…

A: Acid is a chemical compound that gives hydrogen ion in water. The base gives hydroxide ion in water.

Q: Phthalic acid is an acid (generally represented as H2A) with its equilibrium dissociation constants…

A: i) 19.5*10-7 ii) 4.407*10-9

Q: Calculating percent dissociation of a weak acid A student prepares a 0.55 M aqueous solution of…

A: Observing the table shows that trimethylacetic acid has only one pKa value hence one proton from it…

Q: The base protonation constant K, of allantoin (C,H,N,O,NH,) is 9.12 x 10. Calculate the pH of a 1.3…

A: Reaction: C4H4N3O3NH2 + H2O ⇌ C4H4N3O3NH3+ + OH-    Kb of allantoin = 9.12×10-6  Concentration = 1.3…

Q: The base protonation constant K, of allantoin (C,H,N,0,NH,) is 9.12 x 10 °. Calculate the pH of a…

A: Given-> Kb of allantoin = 9.12 × 10-6 Molarity = 1.3 M

Q: calculate the pH and degree of dissociation

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Q: 10. Citric acid, C,H0, is a triacid written HyA. The diagram below shows the predominance domains of…

A: a) Citric acid dissociate stepwise and releases H+ ion as :

Q: Abbreviating malonic acid, CH2(CO2H)2, as H2M, find the pH and concentrations of H2M, HM, and M2…

A: a.

Q: The base protonation constant K, of azetidine (C,H,NH) is 1.5 × 10¯ °. Calculate the pH of a 1.0 M…

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Q: The acid-dissociation constants of phosphorous acid (H3PO3) are Ka1 = 7.5 × 10-3, Ka2 = 6.2 × 10-8,…

A: The question is based on the concept of chemical equilibrium. We have to calculate pH of the given…

Q: The base protonation constant K, of azetidine (C,H,NH) is 1.5 × 10 °. Calculate the pH of a 0.44 M…

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Q: The base protonation constant K, of azetidine (C, H,NH) is 1.5 × 10°. Calculate the pH of a 0.53 M…

A: Given : concentration of solution of azetidine = 0.53 M  Kb for azetidine = 1.5 × 10-8  To calculate…

Q: Lowest base strength benzoate ion Ka = 6.46 x 10-5 acetate ion CH3COO K 1.76-105 carbonate ion co,…

A: According to Bronsted lowry theory greater is the value of Ka of any acid more is acidity of that…

Q: Given that the acid dissociation constant for benzoic acid (HOBz) is Ka= 6.5 x 10^−5. Calculate the…

A: Recall the dissociation of benzoic acid      HOBzaq+H2Ol→OBz-aq+H3O+aq  Acid dissociation…

Q: Which of the following represents the relative fraction of species as a function of pH for the…

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Q: What is the ionization constant at 25 C for the weak acid (CH3)2NH2+, the conjugate acid of the weak…

A: The given solution contains a weak acid and a weak base.

Q: 5. a) The Kw value that we normally use is for room temperature (25°C). Calculate the equilibrium H+…

A: a) Given : Kw at 0.0 oC = 1.14 X 10-15  Since Kw = [H+ ] X [OH- ] where [OH- ] = equilibrium…

Q: The acid dissociation constant K, of hydrocyanic acid (HCN) is 6.2 × 10 1". а -10 Calculate the pH…

A: In this question, we want to determine the pH of the Solution.  You can see details Solution below.…

Q: Calculate the pH of 0.564 M HC2H3O2 (Ka of HC2H3O2 = 1.8 x 10-5)

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Q: The base protonation constant K, of allantoin (C,H,N,O,NH,) is 9.12 x 10 °. Calculate the pH of a…

A: Given Initial Concentration = 0.47 M Kb = 9.12 × 10-6

Q: The acid-dissociation constants of phosphoric acid (H3PO4) are Kal = 7.5 x 10-3, Ka2 = 6.2 × 10-8,…

A: Given: Concentration of H3PO4 = 2.5 M Ka1 = 7.5x10-3 Ka2 = 6.2x10-8 Ka3 = 4.2x10-13 larger the Ka…

Q: Given a diprotic acid, H₂A, with two ionization constants of Kal = 4.0 x 104 and K₁2 = 4.7 x 10-¹1,…

A: 1. Given that, a diprotic acid H2A. The two ionization constants of H2A are Ka1 = 4.0×10-4, Ka2 =…

Q: What is the ionization constant at 25 °C for the weak acid (CH3)2NH2+,the conjugate acid of the weak…

A: Formula for relationship between ka and kb is  ka*kb= 10-14 Ka= 10-14/kb Ka= 10-14/5.9x10-4 Ka=…

Q: The base protonation constant K, of allantoin (C,H,N;03NH,) is 9.12 × 10 °. Calculate the pH of a…

A: Given:

Q: 2. Find the concentration of a solution of the weak base pyridine of pH 7.588, given K = 1.70 x 10-9

A: According to our policy we can attempt maximum of one multiple questions. Sorry for inconvenience.…

Q: The base protonation constant K, of azetidine (C,H,NH) is 1.5 × 10 Calculate the pH of a 1.1 M…

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Q: Cyanic acid (HCNO) has Ka = 2.0 x 10-4 What is the conjugate base and its Kb value?

A: A conjugate acid is formed by the removal of -OH  from a base and a conjugate base is formed by the…

Q: Q3. In order to determine the acidity and acid value of olive oil, the experiment was carried out in…

A: Acid value for an oil=V×40×NWV=Volume of NaOH usedN=Normailty of NaOHW=Weight of sample taken…

Q: The base protonation constant K of azetidine (C²H²NH) is 1.5 × 10¯8. Calculate the pH of a 0.39 M…

A: The base protonation constant Kb of azetidine C3H6NH is 1.5 × 10-8 .We have to calculate the pH of…

Q: CH3NH2 is a weak base (Kb = 5.0 x 10-4 ) and so the salt CH3NH3NO3 acts as a weak acid. What is the…

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Q: The acid-dissociation constant, Ka, for maleic acid, H2C4H¼Os , is 7.56x10-7. What is the…

A: Ka of maleic acid = 7.56× 10-7

Q: 10. Citric acid, C,H3O7, is a triacid written H3A. The diagram below shows the predominance domains…

A: We are given the triprotic acid(H3A) which is citric acid (C6H8O7).

Q: Consider the molecule, pentanoic acid which has a pKa of 4.81: H3C OH  Calculate the conjugate base…

A: From the Henderson-Hasselbalch equation, pH of a buffer solution is: pH = pKa + log([conjugate…

Q: Calculate the pH of a 2.2 M solution of pyridine salt (Ko (pyridine) = 1.7 x 10°) %3D

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Q: Determine the pH of a 0.530 M solution of carbonic acid that has an acid dissociation constant of…

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Q: Arrange the following bases in order of decreasing strength: Caffeine (Kb = 4.10 x 10-4), Codeine…

A: basic strength directly proportional to kb.  so higher kb then higher strength.

Q: The base protonation constant K, of trimethylamine ((CH,) N) is 6.31 × 10 °. 3 Calculate the pH of a…

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Q: Calculate the isoionic pH of 6.022 x 1021 molecules of thereonine in 500 mL of solution. (For…

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Q: What is the 3rd stepwise equilibrium constant expression (Ka3) for phosphoric acid H3PO4?

A: Given polyprotic acid is phosphoric acid, The general equilibrium constant expression is given by,…

Q: The base protonation constant K, of allantoin (C,H,N,0,NH,) is 9.12× 10¯°. 9. 4 Calculate the pH of…

A: Given information: Concentration = 1.3 M

Q: Calculate the pH of a 0.05 mol dm3 CH;COOH solution: the dissociation constant Ka for CH;COOH is…

A: An acid which will not dissociate completely to furnish hydrogen ion is called weak acid

Q: The acid dissociation constant K, of alloxanic acid (HC,H,N,0,) is 2.24 × 10". Calculate the pH of a…

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Q: Write the equilibrium showing the bicarbonate anion (HCO3) Identify the conjugate base-acid (or…

A: The equilibrium reaction for the dissociation reaction of bicarbonate anion is  HCO3- (aq)…

Q: Methyl Orange is used as an indicator because it changes color at pH 3.2-4.4 due to a transition of…

A: The role of an indicator in titration is to find out the endpoint of the titration. When the color…