Given the pKa of hypochlorous acid, HOCl, is 7.54.   What is the pH of a solution which consists of 0.20 M HOCl and 0.70 M OCl-?

Q: A large volume of 0.1760 M H2SO3(aq) is treated with enough NaOH(s) to adjust the pH of the solution…

A: Introduction: pH: pH is used to express the acidity of the solution. It is defined as negative…

Q: The pH of an aqueous solution of weak monoprotic acid is 3.15. What is the initial…

A: Value of pH is sued to measure acidity or basicity of a solution. Value of pH lies in the range from…

Q: Consider the following expression for the equilibrium constant that represents the dissociation of…

A: Given-> Weight of iodic acid = 176 gm Volume= 1.00 L Molar mass of iodic acid = 175.91 g/mole

Q: At 22 °C, an excess amount of a generic metal hydroxide, M(OH),, is mixed with pure water. The…

A: In order to find Ksp of the salt we first write down the given data: pH= 10.34. The given salt is…

Q: 11.An acid-base equilibrium system is created by dissolving 0.15 mol HNO2 in water and diluting the…

A: pH change before addition:

Q: What is the pH of a 1.00 x 10^-9 molar solution of MgCl2?

A: The pH of a 1.00 x 10^-9 molar solution of MgCl2 is given below

Q: The odor of fish is due primarily to amines, especially methylamine 1CH3NH22. Fish is often served…

A: Step 1: The Neutralization reaction between methyl amine and citric acid is as follows: CH3NH2 (aq)…

Q: what is the pH of a 2.32 molar solution of NH4Cl(aq)? The Kb for NH3 is 1.2 x10^-5.

A:

Q: What is the pH of a 0.40 M solution of sodium nitrate, NaNO2 ? The pKa for nitrous acid (HNO2) is…

A: Base dissociation constant Kb is utilized to determine the basic nature of a solution. It refers to…

Q: A monoprotic weak acid, HA, dissociates in water according to the reaction HA(aq) + H,O(1) =H,0*(aq)…

A: Given equilibrium Concentration of [HA] = 0.290 M [H3O+]    = 4 × 10-4 M [A-]         = 4.00 × 10-4…

Q: Given the following equilibrium reaction of NH3: NH3ag) + H2O) Determine the pH in a 1.25 M NH3…

A: When we dissolve NH3 in water, we get:- NH3 + H2O ⇔ NH4+ + -OH Given concentration = 1.25M Ka = 5.6…

Q: Benzoic acid, HC7H5O2, and its salts are used as food preservatives. Ka for benzoic acid is 6,3 x…

A: When an acid undergoes partial dissociation to form protons and conjugate base while a part of the…

Q: The leaves of the rhubarb plant contain high concentrations of diprotic oxalic acid (HOOCCOOH) and…

A:

Q: 5. Consider the following reaction of isocyanic acid (HOCN) with water. Isocyanic acid is a weak…

A: Given , initial concentration of HOCN = 0.0300 M             pH = 2.591 Now, pH can be expressed as,…

Q: 4) The concentration of the hydroxide ion, OH-(aq), in an aqueous solution is 2.5 x 10–3 mol/L. What…

A: 4). Given,  Concentration of hydroxide ion= 2.5×10^-3 mol/L

Q: 8. (a) HA(aq) is a weak acid with a dissociation constant, Ka, of 8.8 x 10−12. What is the pH of a…

A:

Q: You create a solution that is 0.20 M formic acid and 0.25 M sodium formate and the equilibrium shown…

A: For the given reaction, HCOOH + H2O ⇌ HCOO– + H3O+  [Formic acid] = 0.20 M [Sodium formate] = 0.25 M…

Q: The pH is measured to be 2.58 for a solution of 0.035 M cyanic acid, HOCN (aq). Write the hydrolysis…

A: HOCN is a weak acid. Weak acid are those acid which does not dissociates completely in equilibrium.…

Q: 11.An acid-base equilibrium system is created by dissolving 0.20mol CH3COOH in water and diluting…

A:

Q: Hydrogen cyanide, HCN(aq), is a weak acid with pKa = 9.2. What is the pH of 2.5M HCN(aq)?

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Q: The nitrite ion is the conjugate base of the weak acid nitrous acid. The value of K, for NO, , is…

A:

Q: What are the concentrations of H3O+, HC2O4− and the oxalate ion, C2O42−? What is the pH of a 0.10 M…

A: Given data, Concentration of oxalic acid = 0.10M Data taken from google; Ka1 = 6.5 x 10-2 Ka2 = 6.1…

Q: Calculate the pH of a 2.61 mol/L solution of ammonium hydrogen carbonate, NH4HCO3

A:

Q: Saccharin, a sugar substitute, is a weak acid with the formula, HC7H4NSO3.  The pKa of saccharin is…

A:

Q: At what pH is the concentration of a compound, with a pKa = 8.4, 100 times greater in its basic form…

A:

Q: Calculate the pH of the weak acid, lactic acid (HC3H5O3), if the concentration is 0.10 mol/L and the…

A: Given data,Molarity of lactic acid=0.10mol/LKa of lactic acid=1.4×10-4

Q: 300 ml of 0.05 M ammonia solution, where the density of the solution is 0.88 g/ml. The pka of…

A: The negative logarithm to the base 10, of the ionization constant of an acid Ka is denoted as p Ka .…

Q: The leaves of the rhubarb plant contain high concentrations of diprotic oxalic acid (HOOCCOOH) and…

A: Given the values of pka1 and pka2, so from that ka values of both can be found out.

Q: The pH of an aqueous solution of 0.175 M ammonium iodide, NH¼I (aq), is This solution is

A: Given : Concentration of NH4I = 0.175 M Since NH4I is made up of weak base NH3 and strong acid HI.…

Q: The pKa of a particular weak acid is 4.85. What is the pH of the weak acid solution when exactly…

A:

Q: The molar concentration of H3O+ ions in the following solutions was measured at 25 °C. Calculate the…

A: pH is used to measure acidity or basicity of an aqueous solution. pH of any solution can be…

Q: (CH;), (CH,),NH) Fill in the left side of this equilibrium constant equation for the reaction of…

A: The base given is (CH3)2NH Since weak base reacts with water and produce conjugate acid and…

Q: What is the pH of a solution that contains 0.135 M HCOOH and 0.215 M HCOONa? The pKa of formic acid…

A: pH of the solution is equal to the negative logarithm of hydronium ion while pOH is equal to the…

Q: What is the pH of a saturated solution of magnesium hydroxide (the active ingredient in the antacid…

A: Milk of magnesia which is a saturated solution of magnesium hydroxide has a pH of  about 10.0 (basic…

Q: What is the pH of the following solution? Hydrogen sulphide is a weak acid and has a pka of 8.9 x…

A: Please be noted that the value given for H2S is Ka not pKa. Therefore, pKa(H2S)=8.9×10-8.

Q: Alizarin yellow R, Ka = 7.9 x 1012, is yellow in its protonated form (HX) and red in its ionized…

A: Alizarin yellow (R)  be a distinct orange color when,…

Q: 6. Acid-Base Equilibria. If HNO, is added to water, how does [OH ] change? How does pH change? a Use…

A: For pure water,  [H+] = [H3O+]  Hydrogen ion is not stable so with water it form hydronium ion. [H+]…

Q: Calculate the pH of a 0.300 M solution of the dibasic compound piperazine, which we will designate…

A: pH is used to determine the concentration of hydronium ion.

Q: Determine the pH of a solution by adding 0.23 mole formic acid and 0.17 mole of sodium formate in…

A: Here formic acid is a weak acid and sodium formate is an salt of weak acid so they both combine to…

Q: Water is frequently disinfected with chlorine gas, forming hypochlorous acid (HOCI), which partially…

A: Hypochlorous acid partially ionizes to hypochlorite ion, OCl- and H+ ions as follows: HOCl  ↔ H+ +…

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

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Q: The Kb of hydrazine is 9.1 x 10-7. If 3.12 x 10-3 mol of hydrazine is added to water to make up…

A: Hydrazine (N2H4) is a weak base Concentration of hydrazine is calculated as follows,

Q: A patient’s sputum was collected for a laboratory analysis. The results revealed that the [H3O+]…

A: Given data contains, The concentration of hydronium ion is 5.2 x 10-7 M.

Q: 6. What will happen if the pH of the following equilibrium system is increased? H*e *(aq) +…

A: When a reaction system in which the rate of conversion of reactants to products becomes equal to the…

Q: The pka of a particular weak acid is 4.85. What is the pH of the weak acid solution when exactly…

A:

Q: The acid dissociation K, of acetic acid (HCH,Co, is 1.8 x 10 a Calculate the pH of a 2.6 x 10 M…

A: Acetic acid is a weak acid. hence it will dissociate partially as per the reaction  CH3COOH ---->…

Q: Calcium hydroxide can be used to neutralize the water in lakes that have been "killed" by acid rain.…

A: Calculate the mole of calcium hydroxide.  1000 kg  = 1000000 g molar mass of Ca(OH)2 = 74.093 g/mol…