weak

Q: A weak acid, HA, has a p?apKa of 4.5424.542. If a solution of this acid has a pH of 4.4944.494, what…

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Q: Calculate the pH of the solution.  Assume 1.0 L of solution. You must identify the type of solution…

A: HClO is a weak acid and RbOH is a strong base. Acid and base react to form salt and water. HClO0.250…

Q: Carbonic acid, H,CO, is a diprotic acid with Ka1 = 4.3 × 107 and Ka2 = 5.6 × 1011. What is the pH of…

A: H2CO3 ⇌HCO3−  +   H+.........     ka1= 4.3x10-7 HCO3− ⇌CO3-2 ​+   H+..........    Ka2=5.6x10-11ka1…

Q: A 0.110 M solution of an unknown weak acid has a pH of 4.35 at 25 degrees celsius. What is the…

A: The concentration of hydronium ion in solution can be calculated by using PH equation Ka for weak…

Q: Write the formula of the conjugate base of CH3CO2H

A: Conjugate base of an acid contains one less proton.

Q: Refer to the following ionization of hypochlorous acid: HOCI (aq) + H₂O (1) H3O+ (aq) + OCI (aq) 1…

A: Given reaction: HOCl(aq) + H2O(l) ⇌ H3O+ (aq) + OCl-(aq) The Ka for HOCl = 3.5×10-8 The initial…

Q: A substance that ionizes completely in aqueous solutions and produces H3O+ is a     weak acid.…

A: A substance that ionizes completely in aqueous solutions and produces H3O+ is a Strong acid. H2SO4 +…

Q: Ka for HOCl is 3.2 × 10-8. How much chlorine (g) must be dissolved in 2.0 liter of water so that…

A: Given data are as follows Chemical reaction Cl2(g) + H2O(l) ⇌ H+(aq) + Cl–(aq) + HOCl(aq) Ka for…

Q: A diprotic acid, H₂A, has Ka1 = 3.4 × 10⁻⁴ and Ka2 = 6.7 × 10⁻⁹. What is the pH of a 0.26 M solution…

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Q: Calculate the pH of a 0.0385 M sodium hypobromite solution. Ka (HBrO) = 2.8 × 10−9. Report your…

A: pH of a salt formed from weak acid and strong base is expressed as pH=7+12pKa+log Chere, C is the…

Q: "Acid rain" forms when rain falls through air polluted by oxides of sulfur and nitrogen, which…

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Q: A chemist dissolves 539. mg of pure potassium hydroxide in enough water to make up 90. mL of…

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Q: Naturally occurring rainwater is acidic due to the presence of carbonic acid, H2CO3, produced when…

A: The problem is asking us to calculate the pH of rainwater given the concentration of carbonic acid…

Q: A chemist dissolves 134. mg of pure sodium hydroxide in enough water to make up 170. mL of solution.…

A: Answer: pH tells us about the power of hydrogen ion concentration and its value is equal to the…

Q: We measured the pH of a 0.010 M formic acid (HCOOH ) solution and calculated the percent ionization…

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Q: Determine the pH of a 0.650 M solution of magnesium nitrite, Mg(NO2)2 at 25 °C. A solution…

A: Answer: Hydrolysis of the salt of weak acid and strong base or strong acid and weak base takes place…

Q: What is the pH of a solution of 0.79 M acid and 0.55 M of its conjugate base if the ionization…

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Q: odium nitrate (NaNO2) was often added to processed meat to enhance color and to protect against the…

A: NaNO2 belongs to a category of a salt of a weak acid and strong base: NaNO2 ⇌Na+ +NO2- NO2-+H2O ⇌…

Q: Write the dissociation equation and calculate the pH for a solution of 2.5 M HNO2 nitrous acid, Ka…

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Q: Phosphoric acid , H 3 PO 4 (aq) , is a triprotic acid , meaning that one molecule of the acid has…

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Q: Consider the following acidic equilibrium: H₂CO₃(aq) + H₂O(l) ⇌ HCO₃⁻(aq) + H₃O⁺(aq). If you add…

A: According to Le-Chatelier's principle, the changes made in the system is counteracted by shifting…

Q: A chemist dissolves 422. mg of pure sodium hydroxide in enough water to make up 90. mL of solution.…

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Q: We place 0.586 mol of a weak acid, HA, and 12.6 g of NaOH in enough water to produce 1.00 L of…

A: Step 1:    Step 2:     Step 3: Step 4:

Q: A 0.60 M solution of a weak acid, HA, has a pH of 3.41. What is the percentage ionization of the…

A: ★ Answer : percentage of ionization of the acid is 0.064%

Q: A chemist dissolves 705. mg of pure perchloric acid in enough water to make up 160. mL of solution.…

A: Given information, Mass of pure perchloric acid = 705. mg = 0.705 g  As ( 1g = 1000 mg ) Volume of…

Q: The pH scale shows the availability of reactive hydrogen ions (H+) in a liquid. The scale is…

A: The pH scale is a measurement of how acidic or basic a solution is as determined by the activity of…

Q: HCl is a strong acid.  What is the pH of a solution of concentration 1 x 10-3M?

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Q: A 0.12 M solution of hypoiodous acid has a pH of 5.71. Calculate the acid-dissociation constant (Ka)…

A: Solution:- Reaction:-  HIO (aq) + H2O (l) → H3O+ (aq) + IO- (aq) Concentration of HIO = 0.12 M pH =…

Q: What is the the PH and POH of the following solutions: 1. 0.05 M Ba(NO3)2 2. 0.01 M Na2SO4

A: The given solutions are 0.05 M Ba(NO3)2 and 0.01 Na2SO4.

Q: A chemist dissolves 369. mg of pure potassium hydroxide in enough water to make up 140. mL of…

A: First, we need to convert the mass of potassium hydroxide (KOH) to moles. The molar mass of KOH is…

Q: What is the Ka of a weak acid (HA) if the initial concentration of weak acid is 4.5 x 10-4 M and the…

A: The objective of this question is to calculate the Ka (acid dissociation constant) of a weak acid…

Q: What would be the pH of a solution that produces H3O+ ions at a concentration of 3.7 x 10-4 M? Write…

A: Concentration of hydronium ion , [H3O+] = 3.7×10-4 M To determine: pH of solution

Q: Household bleach is prepared by dissolving chlorine in water.  Cl2 (g) + H2O  « H+ (aq)  +  Cl-…

A: The hydrogen ion concentration in the solution of a pH of 1.19 is;

Q: A chemist dissolves 387. mg of pure sodium hydroxide in enough water to make up 140. mL of solution.…

A: Given: Mass of NaOH = 387.0 mg = 0.387 g Volume of the solution = 140.0 mL = 0.140 L Known: Molar…