A polyprotic acid, H3A, has the following Ka values. H3A Ka1 = 7.2x10-3 %3D H2A Ka2 = 6.3x10-8 HA Ka3 = 4.2x10-13 НА- %3D What is the value of Kr for HA ? Select one: a. 4.2x10 13 b. 1.6x10 7 C. 1.4x10 12 d. 6.3x10 e. 2.4x10 2

Q: At 50°C, the water ionization constant, Kw, is 5.48 x 10–14. What is the H3O+ concentration in…

A: As  we know that  Kw  ( ionization constant )  = [H3o+]  *  [ OH-]      5.48 x 10–14…

Q: ave 1 UNSAVED ANSWER - SAVE ALL ANSWERS Question 28 The weak acid HA is 10 % ionized (dissociated)…

A:

Q: What is the pH of a 0.03 M solution of benzoic acid with a Ka = 6.6 x 10-5? 2.9 4.2 5.0 9.3 9.8

A: Which of the following is correct

Q: when the pH of a solution containing 15mL of 0.10 M CH3COONa and 10 mL of 0.10M CH3COOH (pKa=4.74)?…

A:

Q: A 0.150 M solution of a weak acid has a pH of 2.51. What is the pKa of the acid?

A: The given information is as follows:     The concentration of weak acid = 0.150 M The pH of the…

Q: Rank the pH of the 0.05 M solutions of the following from lowest to highest: Acetic acid (pKa =…

A:

Q: 7. A 0.10 M solution of a weak monoprotic acid, HA, nas a pH of 3.14. What is the acid-ionization…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: Determine what reagent can be used to separate the following solutions. (Pick the best Choice)…

A: 1) When a mixture containing potassium ion K+ and calcium ion Ca2+ , then if we add ammonium…

Q: 7) It is the value of a2 for a solution with pH =4.40 containing 0.150 M malonic acid (ноосCH-соон,…

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

Q: Which of the following is the strongest acids? A. Benzoic acid, K₂ = 6.25 x 10-5. B. Formic acid, K₂…

A: pKa value: pKa value negative logarithm of the acid dissociation constant (Ka). pKa = -logKa Low pKa…

Q: At 50°C, the water ionization constant, Kw, is 5.48 x 10–14. What is the H3O+concentration in…

A: Given  Ionization Constant = 5.48 × 10-14  [ H3O+ ]  = ?

Q: For a weak acid HA solution of 0.50 M (Ka = 4.0 x 10-10) a. [H+] at equilibrium (to 3 significant…

A: Given: Concentration of weak acid HA= 0.5 M Ka for HA = 4.0×10-10

Q: The Ka of a weak acid is shown below. The Kb of its conjugate base partner must be which of the…

A: The value of Ka is given as 1.6 × 10-8 We know the relation between Ka and Kb for a weak acid is :…

Q: 3. Using the following Ka values, indicate the correct order of base strength. HNO, Ка %3D 4.0 х 104…

A: given Ka values HNO2   Ka = 4.0 * 10-4 HF         Ka = 7.2 * 10-4 HCN     Ka = 6.2 * 10-10 WE need…

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

A:

Q: 6. What is the pH of 0.025 M (CH3)3N(aq)? For (CH3)3N, K, 6.5 × 10-5, 9.81 11.11 12.40 11.91 - | |…

A: (CH3)3 is weak base hence it dissociated feabily in aqueous solution

Q: uestion 13 Rank the following bases in order of INCREASING base strength: Base Kb I. F 1.6e-11 II.…

A:

Q: What is the conjugate acid of the Brønsted-Lowry base, C,H¸NH,?

A:

Q: A 0.190 M solution of a weak acid (HA) has a pH of 2.91. Calculate the acid-dissociation constant…

A: Weak acid and its dissociation:

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

A: (1)  Ka of HNO2 = 4.50×10-4   Ka of HClO = 3.50×10-8   Equation: pKa = - log Ka   For HNO2 : pKa = -…

Q: Lowest pKa OH OH CI NH2 HO

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

Q: What is the pH of a 0.291 M solution of ammonium, a weak acid with a Ką of 5.8 x 10-10? a. 4.89 b.…

A: pH of weak acid is calculated by considering Ka value.

Q: Consider the following data on some weak acids and weak bases: Ka acetic acid HCH₂ CO₂ 1.8 x 10-5…

A:

Q: Lactic acid, C3H6O3, builds up in human muscles during anaerobic exercise. If the initial…

A:

Q: What will happen to arsine as the pH is raised from 2 to 12?

A: Given is the Pourbouix diagram for As species.

Q: The ionization constant, Ka, for benzoic acid is 6.28 x 105. What is the pK, of this acid? a. 1.59 x…

A: Benzoic acid [C6H5COOH] is a monoprotic weak acid, in solution it partially ionizes and gives an…

Q: What is the hydroxide ion concentration of a solution with a pH = 5.50 at 25 °C? %3D

A: pH = 5.50 We know at 25°C; pH + pOH = 14 5.50 + pOH = 14 pOH = 14 - 5.50 pOH = 8.5 Now, pOH = - log…

Q: Using the following acids and Ką values: HCIO4 1x107 1.76 x 10-5 What is the order of increasing…

A:

Q: 7. The ka for acetic acid is 1.0 x 10.5. Is acetic acid a weak or a strong acid?

A: Strong acids completely dissociate in aqueous solution (Ka > 1, pKa < 1).

Q: What is the Ka of a weak acid (HA) if the initial concentration of weak acid is 0.75 M and the pH is…

A:

Q: Benzoic acid has a Ka -6.3 x 10-5. What is the percent ionized in a 0.11 M solution of benzoic acid?…

A: Final answer is given in explanation please see from there.Explanation:Approach to solving the…

Q: What is the concentration of X2 - in a 0.150 M solution of the diprotic acid H2X? For H2X, Ka1 = 4.5…

A: Given : Concentration of H2X = 0.150 M Ka1 of H2X = 4.5 X 10-6  And Ka2 of H2X = 1.2 X 10-11  The 2…

Q: A solution of 7.97 M formic acid (HCOOH) is 0.47% ionized. What is the Ka value of formic acid?…

A:

Q: A 0.060 M solution of an acid has a pH of 5.12. Calculate the Ka of the acid. O A. 7.59 x 10-6 B.…

A:

Q: The weak acid HA is 10 % ionized (dissociated) in a 0.20 M solution. The Ka for this acid is:

A: Dissociation constant is a quantity that tells the extent to which a particular substance gets…

Q: Estimate the pH at 50% volume of the first equivalence point. This represents pKa1- What is the Ka1?…

A: Half-equivalence point is the point in titration curve, when half of the acid is neutralized by the…

Q: Which of the following is true about acids and bases? A. When bases ionize, they donate protons.…

A:

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

A:

Q: Calculate the Ka of an acid, HX, whose ionization is 31% when CHX= 0.60 M (Note that the %…

A:

Q: What is the pH of a solution made of 0.IM acetic acid (pka = 4.8)? %3D О а. 2.9

A: We have given that  what is pH of a solution made of 0.1M acetic acid (pKa = 4.8 )    pH of solution…

Q: What is the percent dissociation of 0.010 M acetic acid? Data: K₂ = 1.8 × 10-5

A:

Q: Y ▼ Part C Calculate the [H3O+] of soy milk. Express the molarity to two significant figures. [H3O+]…

A: Since, Neutral solution having pH=7 so,

Q: Consider two acids: Pyridinium ion (C,H,NH, pK = 5.2) and hydrazoic acid (HN3, pK = 4.72). Part: 0/3…

A:

Q: Decide whether aqueous solutions are acidic, basic or neutral. Ka Zn(H2O)62+ = 1x10-9 Kb HCOO- =…

A: The question is based on the concept of salt hydrolysis. We have to identify the nature of the given…

Q: на 14, 12 10 8 41 2 10 20 30 40 50 Volume (ml) Identify the weak acid according to the pH curve…

A: Answer:- This question is answered by using the simple concept of identification of weak acid using…

Q: A0.300 M solution of nitrous acid (HNO2) had a pH of 2.07. What is the Ka value for nitrous acid. 1.…

A: The molarity of a nitrous acid solution is = 0.300 M The pH of the solution is =2.07 The Ka value of…

Q: Calculate the pH of 0.65 M of a weak acid HA with Ka=2.56 x 10^-5 a. 5.59 b. 2.89 c. 2.78 d.…

A:

Q: The pH of a 0.300 M solution of NaOAc is:   (For HOAC, Ka = 1.8 x 10-5) a. pH = 4.90 b. pH = 11.37…

A:

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.