A0.300 M solution of nitrous acid (HNO2) had a pH of 2.07. What is the Ka value for nitrous acid. 1. 07.24X104 2. 074.2X10-4 3. 09.08X106 4. O 2.41X10-4

Q: Phosphoric acid, H3PO4 is a triprotic acid.    pKa1= 2.16      pKa2=7.21            pKa3=12.32…

A: Given data, Molarity of HPO42-=0.450MpKa1=2.16pKa2=7.21pKa3=12.32

Q: For nitrous acid, HNO 2, K a = 4.0 × 10 –4. Calculate the pH of 0.54 M HNO 2.   a. 1.83 b. 0.27 c.…

A:

Q: A 0.50 M solution of an acid HA has pH = 2.24. What is thevalue of Ka for the acid? (a) 1.7 x 10-12…

A: Assuming HA is a weak acid Hence it will dissociate partially as per the reaction  HA -----> H+ +…

Q: A0.14 M aqueous solution of sodium dihydrogen phosphate, Nall, PO4, has a pH of 4.03. Calculate Ka…

A: The hydrolysis of sodium dihydrogen phosphate is as follows,

Q: Consider the following equilibrium H3 AsO3 (aq) + H2O(1) + → H3O + H2 AsO3 (aq) (ад) Where Ka = 6.0…

A:

Q: What is the Ka of cyanuric acid if a 0.030 M cyanuric acid aqueous solution has a pH of 4.15? O…

A:

Q: The pKa for HCN(aq) is 9.21. What is the pH of a 1.245 M solution of NaCN? O a. 11.25 O b. 1.24 O c.…

A: this is the salt of weak acid and strong base. so ,we will use hydrolysis equation of weak acid and…

Q: A 0.303 M solution of hydrogen sulfide has a pH of 3.80. What is the Ka of hydrogen sulfide? a. 1.6…

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Q: At 25°C, calculate the pH of a 0.426 M solution of the salt KNO2. (Ka (HNO2) = 4.50 × 10−4 ).

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Q: Formic acid (HCHO,) has a K, 1.8 x 10. What is fractional composition (a) of formic acid in solution…

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Q: For the diprotic weak acid H2A, Kal = 3.9 x 10-6 and K22 = 7.7 x 109 What is the pH of a 0.0400 M…

A: The hydronium ion concentration can be calculated using ICE table as,

Q: Consider HA (a weak acid) and HB (a weak base). 11) A 0.10 M solution of the weak base D has a pH…

A: Given: pH = 11.45 concentration of weak base = 0.10 M

Q: What is the pH of a solution that is 0.12 M in acetic acid, HC2H3O2, and 0.50 M in sodium acetate,…

A: Given [salt] = [sodium acetate] = 0.5 M [Acid] = [Acetic Acid] = 0.12 M Ka of acetic acid = 1.8*10-5

Q: 28. What is the pH of a 0.62 M NH,NO, solution at 25°C? [Kb for NH; is 1.76 × 10°] А. 2.48 В. 4.73…

A: Welcome to bartleby !  We have to calculate pH

Q: (2) glubi Calculate the pH value of 0.001M ? acetic acid at 25 C if Ka=0.000018 3.1 2.84 2.58 2.12

A: The acid dissociation constant for the acetic acid is = 0.000018 The concentration of HCN solution…

Q: 1. Calculate the [H3O*] and pH of 0.120 M HNO2 (nitrous acid). Ka = 7.10 x 10-4

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

Q: A 0.144 M solution of HA has a pH of 2.26 at 25°C. What is the value of Ka for HA? (the answer…

A: Given that, a 0.144 M solution of HA has a pH of 2.26 at 25°C. I.e. concentration is C = 0.144 M.…

Q: 1) The pH of a solution is 3.4. Calculate [H3O+] for this solution. 2) Calculate the pKa of…

A:

Q: estion What is the pH of a 0.223 M LİNO2 solution at 25 °C (Ka for HNO2 = 4.0 × 104)? (the answer…

A:

Q: 28. What is the pH of a 0.62 M NH;NO3 solution at 25 °C? * [Kb for NH, is 1.76 × 10*] A. 2.48 В.…

A: Ammonium nitrate is a slat of weak base, ammonium hydroxide and strong acid, nitric acid.…

Q: What is the pH of a 0.481 M solution of NH4Br? For NH3, Kb = 1.8 × 10–5

A:

Q: An aqueous solution of a weak acid, HA is prepared by dissolving 0.030 mol of HA in water to yield…

A:

Q: What is the pH of a solution that is 0.125 M in maleic acid, a DIPROTIC acid with Ka1=1.2x10-2 and…

A: Maleic acid dissociates in two steps. The major concentration of hydrogen ion is released in the…

Q: The Ka for niacin is 1.5 * 10-5. What is the pH of a 0.010 M solution of niacin?

A:

Q: Solutions of calcium salts of the acids in the following table are prepared with an initial…

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Q: 10. The pH of 0.25 M aqueous solution of a weak acid HA is observed to be 4.15. Determine the acid…

A:

Q: You have 50.0 mL 0.10 M NazPO4 to which you add 50.0 mL 0.19 M NaH PO4. What is the pH of this…

A: We can calculate the pH of the solution using the formula, Calculate the total volume of the…

Q: The pk, for HCN(aq) is 9.21. What is the pH of a 1.245 M solution of NaCN? O a. 11.95 O b. 1.24 O c.…

A:

Q: The hydrate of sodium carbonate (Na,CO,.10H,0) is known as washing soda. How many grams of washing…

A: Sodium carbonate dissolved in water forms bicarbonate ion as follows: CO32-+H2O↔HCO3-+OH- The base…

Q: what is the ph of 0.010 M solution of acetic acid? for the acetic acid is 1.8x10-5

A: Given information: Concentration of acetic acid is 0.010 M Ka for acetic acid is 1.8 x 10-5

Q: Calculate the pH of a solution prepared by dissolving 0.150 mol of acetic acid and 0.300 mol of…

A: A solution formed by the addition of a weak acid to the salt of its conjugate base anion is known as…

Q: A 0.15-M aqueous solution of a weak acid HA has a pH of 5.35 at 25oC. What is the Ka of the acid?…

A:

Q: Ascorbic acid (vitamin C, C6H8O6) is a diprotic acid (Ka1 = 8.0×10–5 and Ka2 = 1.6×10–12). What is…

A:

Q: 7. a) Calculate the pH of a 2.0 M aqueous solution of H2SO4. b) Calculate the pH of a 5.0 × 10 M…

A: 7. a) calculating the pH of a 2.0 M aqua solution of H2SO4: Given;

Q: pH

A:

Q: The pH of a 0.16 M solution of a weak monoprotic acid, HA, is 2.92. Calculate the Ka for this acid.…

A: The dissociation of an acid can be written as; HA ⇌ H++A- Dissociation constant It is the…

Q: Formic acid is in the venom of some ant species. What is the pH of a 0.35 M solution of formic acid…

A: Given: Concentration of formic acid HA = 0.35 M And Ka of HA = 1.78 × 10-4  The dissociation…

Q: What

A: Hinderson equation is used for calculating the pH of the buffer solution.  pH = pKa + log( [salt] /…

Q: What is the Ka expression that can be derived from the ionization of HPO42- in water?

A: Equilibrium is the state of the reversible reactions. So when the rate of the forward direction…

Q: The pKa of HOCl is 7.5. Calculate the pH of a 0.41 M solution of HOCl. a. 6.50 b. 3.94 c.…

A: Given ,  pKa = 7.5          so, - log(Ka ) = pKa = 7.5                  => Ka  =  10(-7.5)…

Q: Determine the pH of a 0.588 M weak base soultions at 25C. The Kb for the weak base is 1.76 x 10^-5.…

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Q: The pH of a 4.6 x 10 -4 M Ca(OH) 2 solution at 25 °C is Note that Ca(OH) 2 is a strong base. а.…

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Q: The pH of an unknown monoprotic acid HA is 4.58. Its concentration is tested to be 0.575 M.…

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Q: The acid dissociation constants for sulfurous acid, H2SO3, are K, = 1.7x102 and K," = 6.4x108. What…

A:

Q: What is the pH of a 0.2 M solution of sodium propionate C2H5COONA (salt) solution? (For propionic…

A: pH is the potential of the hydrogen atom, pH is a logarithmic function, it is found from the…

Q: What is the pH of a solution that is 0.12 M in acetic acid, HC2H3O2, and 0.50 M in sodium acetate,…

A: Given data [sodium acetate]=0.50 M[acetic acid]=0.12 MKa=1.8×10-5   pH of weak acid and their salt…

Q: A 0.010 M aqueous solution of a weak acid HA has a pH of 4.0. What is the degree of ionization of HA…

A: HA + H2O  ↔ H3O+ +  A-   Ka = [H3O+] [A-][HA] It is given that,the concentration of the weak acid…

Q: 7. A solution with pH of 9.50 has a pOH of А. 9.50 О В. О.50 Ос. 4.50 D 11 3

A: pH  is a scale used to specify the acidity or basicity of an aqueous solution. Acidic solutions  are…

Q: Calculate the pH of a 0.075-M  Al(NO3)3 solution. The Ka value for Al(H2O)63+ is 1.4x10 -5

A:

Q: Hydrofluoric acid has a Ka value of 7.2*10^-4. What is the pH of a 0.04M solution of hydrofluoric…

A: Given information, Ka of hydrofluoric acid = 7.2*10-4 Initial concentration of hydrofluoric acid =…

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.