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

Q: 5. The pK,'s for phosphoric acid represent the following ionizations: H;PO4 2 H2PO4 + H* pK = 2.14…

A: Chemical reaction between H3PO4 and NaOH is:   H3PO4+3NaOH→Na3PO4+H2O

Q: Calculate the molar concentrations of oxalic acid (COOH)2, HOOCCO2-, (CO2)22-, H3O+, and OH- in 0.15…

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Q: Use the drop down menu to answer if these statements about the polyprotic acid are true or false.…

A: We have to tell whether given statement are true or false

Q: What is the equilibrium constant expression, Ki, for the following weak acid? H3PO4(aq) + H*(aq) +…

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Q: For a weak acid (Ka = 1.0 x 10-5), calculate [H+], pH, and %dissociation when the concentration of…

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Q: Question 1

A: From the given dissociation of sodium formate-

Q: 5,A weak acid, HA, with a molarity = 0.180 M was found to have a pH = 4.54.  Calculate the…

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Q: The 3-step ionization of phosphoric acid: H3PO4 = H + H2PO4 H2PO4 = H + HPO4² HPO4? = H* + PO4 Kal =…

A: We need to an acid whose pKa is close to 7.0. then we make a solution of the acid and its conjugate…

Q: Q1//A solution of o.1 M of BX salt with pH=9.5, the HX is weak acid and BOH a strong base. Calculate…

A: Since the exact question is not mentioned we only answer the first question. Please resubmit the…

Q: A 40.25 litre aqueous solution of a weak base, B-, has a concentration of 0.097 M.  The Kb -value…

A: Kb = 5.00 x 10-12 [BOH] = 0.097 M

Q: a. Determine the [OH−][OH−] , pH, and pOH of a solution with a [H+][H+] of 8.8×10−9 M8.8×10−9 M at…

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Q: Complete the reaction H₂SO4 + 2 H₂O mplete ionization of HSO4-¹ What is the pH of a 0.001000 M H₂SO4…

A: ->H2SO4 is strong acid which can dissociate completely into ions H+ and SO42-. Molarity of H2SO4…

Q: 10. A solution containing 1.75 M citric acid (H3C6H5O7) is prepared. Enough hydroiodic acid (HI;…

A: Given that : Molarity of citric acid = 1.75 M The final concentration of HI = 0.25 M The acid…

Q: A solution is made by dissolving 43.5 g of Ba(NO₂)2 in 500.0 mL of water. (a).As NO₂ is a base,…

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Q: Calculate the pKa of hydrofluoric acid (HF(aq)) and hydrogen cyanide (HCN). What would be the pH of…

A: Given: concentration of HF = 5 mM = 0.005 M         concentration of HCN = 5 mM = 0.005 M Gibbs free…

Q: Consider a buffer solution made up of H2PO4- and HPO42- . For H2PO4-, Ka = 6.2 x 10-8. What mole…

A: Answer: 1.38

Q: Q1/ Calculate the concentrations of the an ions species in (0.1 M H₂ASO4): [H], [OH'], [H₂ASO4],…

A: Since ka1 >>>Ka2 >>>> Ka3  so only first step is contributing in [ H+]

Q: Will 260.0 milligrams of calcium carbonate raise the pH of 75.0 milliliters of stomach fluid from a…

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Q: I'm not sure how to solve 115. I saw one solution that used the ka to solve it, but I don't…

A: For polyprotic acids, the dissociation of acid occurs into multiple steps but the major dissociation…

Q: Calculate the concentrations of all species present (other then water) in an aqueous solution of…

A: Sulfurous acid is a diprotic acid. It dissociates two times in an aqueous medium.

Q: his question relates to aqueous formic acid solutions (HCOOH pK,-3.75) ou will be asked to calculate…

A: pKa of HCOOH = 3.75

Q: In an analysis carried out with water (H2O) at 90 °C, a chemist found an amount of hydroniums (H3O+)…

A: Given :-  Concentration of hydronium ion at 90°C = 5×10-7 mol/L  Concentration of hydroxide ion at…

Q: A diprotic acid, H,A, has acid dissociation constants of Ka = 4.88 x 10-4 and K2 = 5.41 x 10-12.…

A: The dissociation of diprotic acid H2A can be written as;                H2A (aq)⇔H+(aq) + HA-(aq)…

Q: I'm not sure how to answer this question. I know that the first two answers are correct, but I don't…

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

Q: Calculate the pH at 25 °C of a 0.52 M solution of lidocaine HCl (C14H21 NONH,CI). Note that…

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Q: The following equilibrium system maintains a constant pH in the intracellular fuild in the body. +…

A: Reaction of conjugate acid base pair.

Q: Calculate the pH and the equilibrium concentrations of HCO, and Co,?- in a 0.0503 M carbonic acid…

A: Carbonic acid is a dibasic acid and has two values of acid dissociation constants.   Given value of…

Q: pH is one of the most important controlling factors for treatment and chemical analysis of water and…

A: pH :-      pH is a measurement of the alkalinity or acidity of a substance. pH measure is the…

Q: Calculate the pH of the buffered solution if at equilibrium [H2SO3] = 3.50 X 104 M, [HSO31] = 5.5 X…

A: Ka is acid dissociation constant, so we can write expression for Ka using the given reaction. H2O is…

Q: 7. Carbonic acid (H2CO3) is a diprotic acid with Ka1 = 4.30 × 10–7 and   Ka2 = 5.60 × 10–11 What…

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Q: How many grams of NaNO: (68.995 g mol-") is needed to prepare an aqueous solubon o 20 ml vih a pH of…

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Q: Qi//A solution of o.1 M of BX salt with pH=9.5, the HX is weak acid and BOH a strong base. Calculate…

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Q: From the equilibrium concentrations given, calculate Ka for each of the weak acids and Kb for each…

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Q: a , b and c, much thanks! filling in the blanks a. The pOH of an aqueous solution of 0.590 M phenol…

A: Formula used, percentage ionization=concentration of ionsconcentration of initial solution×100

Q: The Kb for four bases are CN'- = 1.6 x 10$, CO3²- = 2.1 × 104, NH3 = 1.8 × 10$, F'- = 1.5 × 10-1".…

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Q: NaHSO3 is a salt, which ionized completely to give HSO3-  ion. the following equations show that…

A: NaHSO3 dissociates as:   NaHSO3→Na++HSO3-                       (A)

Q: a. Write a chemical equation that illustrates the autoionization of water. b. Write the expression…

A: pH of solution is defined as the negative logarithm of H3O+ ion concentration. At 25°C for an acidic…

Q: 1. How much base 0.1 M NaOH was required to neutralize lemon juice from our experiment part 1, and…

A: Solution :      pH       pH is a quantitative measure for the acidity or basicity of the solution.…

Q: Which of the following solutions would be expected to have a pH of 7.00? Weak Ka Kb Base < 10-10…

A: When a salt is formed by reaction of strong acid and strong base , then the salt is neutral salt and…

Q: 16.62

A: The pH of a given solution can be termed as a measure of its basicity or acidity. It is a measure of…

Q: For a 0.143 M solution of H2C6H6O6, calculate both the pH and the C6H6O62- ion concentration.…

A: Given, H2C6H6O6 ----&gt; H+ + HC6H6O6- Ka1 = 7.9x10-5 Therefore, 7.9x10-5 = (x2)/0.143 - x  Now,…

Q: A certain weak acid, HA, has a K, value of 4.6x10-7. Percent ionization for a weak acid (HA) is…

A: Answer: When a weak acid is added in water, its partial ionization takes place whose degree depends…

Q: 1.Volume of NaOH at end point VI= ml Calculation of pH ISHOW CALCULATION FROM THE GRAPH TATTACH…

A: Since you have asked a question with multiple subparts, we will answer only first 3 subparts for…

Q: Calculate the concentration of each species present in a 0.025 M solution of phthalic acid,…

A: Pthalic acid is a weak acid and Ka is an equilibrium expression. The Ka is calculated by the…

Q: If NH4OH at 30.0 °C is 1.20 % ionized is 0.250 M solution, what is its ionization constant and the %…

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Q: In the stomach, the "juice" has a pH as low as 1.  Under these conditions, the predominant form of a…

A: The question is based on the concept of chemical bonding. we have to predict  how many hydrogen…

Q: Caffeine is a weak base with a ?bKb of 4.1×10−44.1×10−4. Calculate the initial molar concentration…

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

Q: Suppose a particular water sample is known to have pH = 8.34 and [HCO3-] = 183 mg/L. (a) Estimate or…

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Q: In the following equation HNO2 (aq) + H2O (l) ↔ H3O+ (aq) + NO2-(aq), 0.37 M of nitrous acid was…

A: Given : Initial concentration of acid = 0.37 M ka for HNO2 = 4.5 × 10-4