The pH of a 0.224 M solution of a weak acid, НВ, is 2.63. What is Ka for the weak acid?

Q: HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts as a weak base. What is the pH of a…

A: Ka of HClO is given as 4 x 10-8. It is required to calculate the pH of solution that is 0.054M in…

Q: Calculate the pH of water at 25°C and 75°C. The values for pKw at these temperatures are 13.99 and…

A: Pure water has an equal concentration of hydrogen ions and hydroxyl ions. The dissociation of water…

Q: The pH of a 0.173 M solution of a weak acid, HB, is 2.53. What is Ka for the weak acid?

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Q: For sulfuric acid, K >> 1 and K is 0.012. Calculate the pH of a 1.2 M solution of HSO.

A: Assuming the solution is H2SO4

Q: Consider a 0.26 M solution of the hypothetical weak acid, HA at 25°C. The K 3.7 X 10 for this weak…

A:

Q: 2. Phenol, CH;OH can act as an acid in an aqueous solution. The Ka of phenolis around 2.1 x 10°, and…

A: pH = -log[H+] pOH = -log[OH]  Also, pH + pOH = 14 Also Ka and Kb has a relationship  Ka × Kb = Kw

Q: Determine the pH of a 0.13 M solution of pyridinium nitrate (C5H5NHNO3) at 25°C. [Pyridinium nitrate…

A: Determine the pH of a 0.13 M solution of pyridinium nitrate

Q: What are the conjugate base and conjugate acid for HSO4−? What is the term used to describe species…

A: The term conjugate acid can be defined as the compound which gets formed when and acid reacts with…

Q: The pH of a 0.45 M solution of a weak acid, HA, is 2.13. What is the value of Ka for the weak acid?

A: Given data,pH=2.13Molarity of HA=0.45

Q: A newspaper reported that the level of acidity in a sample taken from an extensively studied…

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Q: What is the pH of a 0.540 M solution of Ca(NO,), (Ka of HNO, is 4.5 x 10*)?

A:

Q: a general chemistry student measured the pH of a 0.510 M aqueous solution of nitrous acid to be…

A: Here we are required to find the dissociation constant for weak acid nitrous acid

Q: Define concept of Acid Strength and pKa ?

A: Acid strength means the tendency of acid to dissociate into H+ and anion. The dissociation of strong…

Q: A 0.185 M solution of a weak acid (HA) has a pH of 2.95. Calculate the acid ionization constant (Ka)…

A: Given:

Q: The pH of a 2.642M solution of a weak acid, HB is 2.34, What is the Ka for the acid?

A: Given: The conc. of the weak acid solution = 2.642 M HB is a weak acid with a pH = 2.34 A weak acid…

Q: The pH of a 0.224 M solution of a weak acid, HB, is 2.66. What is Ka for the weak acid?

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Q: The pH of an aqueous solution of 9.43x102 M tellurous acid, H,TeO3 (aq), is For H,TeO3 K =5.40*10…

A: Dissociation of tellurous acid is, Ka1 and Ka2 values of a tellurous acid are given as 5.40×10-7…

Q: the pH of an acid solution is 3.59. If the concentration of the acid in the solution is 0.200 mol/L,…

A: Given Concentration of the acid=0.2 mol/LpH of the acid solution=3.59Ka of thel acid=??

Q: A weak acid, HA, is a monoprotic acid. A solution that is 0.140 M in HA has a pH of 1.800 at 25°C.…

A: In this question, we will determine the Ka value and degree of ionization.  How we can calculate,…

Q: A weak base B forms the salt BHCl, composed of the ions BH+ and Cl‒. A 0.30 M solution of the salt…

A: The given salt has a formula BHCl. Since, B is a weak base, ⇒ BHCl is a salt of weak base (B) and…

Q: Calculate the pH and pOH of the following solutions (see Appendix 11 of your textbook for pKa…

A: "Since you have asked multiple questions and not mentioned the question number to be solved, we will…

Q: what is the pH of a 0.05 M solution of aluminum hydroxide at 25 celcius?

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Q: What the pH of 0.10 M solution of methylamine (Kb for CH3NH2 is 4.4 x 10*)?

A: A numerical problem based on pH of the weak base, which is to be accomplished.

Q: The pH of a 0.0492 M solution of a weak acid is 2.641. What is the Ka of the acid?

A: pH= 2.641

Q: What is the conjugate base of boric acid, B(OH)3?             (A) OH–            (B) B(OH)4–…

A: According to Bronsted concept , acid is a substance which donates proton and base is the substance…

Q: The pH of an aqueous solution of formic acid (HCOOH) is 3.318. What is the initial molar…

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Q: Find the pH of a 0.337 M aqueous solution of hydrofluoric acid (HF), for which Ka = 6.8 × 10–4.

A: Weak acids :-  Acids which do not undergo complete dissociation and produce very less number of H+…

Q: The pH of an aqueous solution of acetic acid (CH3COOH) is 2.0. What is the initial molar…

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Q: A hypothetical weak base has Kb = 5.0 × 10−8. Calculate the equilibrium concentrations of the base,…

A: Given: Kb for the weak base = 5.0 × 10-8  Concentration of the weak base = 0.15 M We have to…

Q: What is the pH of a 0.0270 M solution of hydrocyanic acid, HCN (Ka = 4.9 × 10¬1º)?

A: Here, hydrocyanic acid is weak acid as compared to mineral acids , thus when it ionized it will form…

Q: Calculate the pH of a 0.10 molar solution of sodium formate

A: Acid dissociation constant of formic acid is:  The chemical equation for the reaction involved with…

Q: Consider, barium hydroxide, Ba(OH) 2 , a white powdery substance used in the treatment of wastewater…

A: pH is defined as negative logarithm to the base 10 of hydrogen ion concentration expressed in mol/L.…

Q: The Ka for cyanic acid HOCN is 3.5 x 10-4. What is the pH of a 0.37 M solution of the acid? What is…

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Q: NH3 is a weak base (?b=1.8×10−5Kb=1.8×10−5) and so the salt NH4Cl acts as a weak acid. What is the…

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Q: Determine the pH of a 0.13 M acetic acid solution. The K, of acetic acid is 1.8 X 10 5.

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Q: If the Ka of a reaction is equal to 1.8x10-5, which is favored- the products or the reactants? How…

A: If Ka of reaction is 1.8 x 10-5 then reaction is reactant favoured because value of equilibrium…

Q: The pH of a 0.220M solution of a weak acid, HB, is 2.51. What is Ka for the weak acid?

A: Given  PH of weak acid = 2.51  Concentration of weak acid ( c ) = 0.220 M  Ionization constant ( Ka…

Q: The pH of a 1.00 M solution of urea, a weak organic base, is 7.050. Calculate the Ka of protonated…

A: [CH4N2O] = 1.00 M pH = 7.050 Calculating the [H3O+] from the given pH value, pH = -log[H3O+] [H3O+]…

Q: Nitrous Acid (HNO2) has a Ka value of 5.6x10–4. Calculate the pH of a solution that is 0.00789 M…

A:

Q: The pH of a 0.16 M solution of a weak acid, HA, is 2.85. What is the value of Ka for the weak acid?

A: The question is based on the dissociation of weak electrolyte. We  have been given a weak Acid which…

Q: Give the conjugate acid of each of these bases: (a) HS, (b) HCO3, (c) CO, (d) H2PO,, (e) HPO" , (f)…

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Q: Calculate the pH of a 1.60 M KBRO solution. Ka for hypobromous acid, HBrO, is 2.0 × 10º. 4.25 2.55…

A: ph is the gives the hydrogen ion concentration in the aqueous solution.

Q: A 0.051 M weak acid solution, HA, has a pH of 1.95. What is the Ka of the acid

A: [H+]  = (Ka  × C )1/2

Q: The pH of a 0.800 M aqueous solution of a weak acid is 1.99. What is the value of Ka for this acid?

A: Given  pH = 1.99 Concentration (c) = 0.800 M Ka =?

Q: 2) A weak acid has a K,= 6.62 x 10. What is the pH of a solution of this acid that is 2.65 M?

A:

Q: Calculate the pH of a 27 mg/L solution of hydrocyanic acid (HCN). The pKa of hydrocyanic acid is…

A: Given: The concentration of hydrocyanic acid is 27 mg/L. The pKa of hydrocyanic acid is 9.3.

Q: Determine the pH of a 0.15 M solution of Ca(BrO2)2 at 25 °C. At the same temperature, Ka for HBRO, =…

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Q: Determine the pH of a 0.085 M solution of boric acid. Ka of boric acid = 5.4 x 10 10

A: Ka= acid strength measured relative to water For Acid dissociation constant, the strength of acid is…

Q: In the given equation: HCOOH (aq) + H2O (l) ↔ H3O+ (aq) + HCOO– (aq), the initial concentration of…

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Q: The pH of a 0.224 M solution of a weak acid, HB, is 2.63. What is Ka for the weak acid?

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.