Solving a polyprotic acid equilibrium composition problem 2 - Suppose a 0.23 M aqueous solution of phosphoric acid (H, PO4) is prepared. Calculate the equilibrium molarity of HPO, the properties of phosphoric acid in the ALEKS Data resource. You'll find information on Round your answer to 2 significant digits. ol [-] pK, of weak acids at 25°C Name Formula pKą1 pKą2 pКаз acetic acid CH3CO2H 4.756 benzoic acid CH5CO2H 4.204 butanoic acid Сзн,со2н 4.83 4-chlorobutanoic acid C3H,CICO,H 4.52 crotonic acid C3H5CO2H 4.69 охalic acid H2C2O4 1.25 3.81 phosphoric acid НзРО4 2.16 7.21 12.32 propionic acid C2H5CO2H 4.87 sulfuric acid H2SO4 strong acid 1.99 trimethylacetic acid C4H9CO2H 5.03

Q: n the following reaction of tetrafluoroboric acid, HBF4, with acetate ion, C2H3O2-, the formation of…

A: According to Bronsted Lowry concept of acid and bases,acids are proton donors and bases are proton…

Q: Use the following table to predict the best acid / base pair for the desired pH/pOH value: pH =…

A: Given : To predict the best acid/ base pair for the desired pH value of 10.31.

Q: identify whether each species functions as a Bronsted - lowary acid of Brensted Lowary base in net…

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Q: Which are conjugate acid-base pairs in the following reaction? Select all that apply. No partial…

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Q: For acetic acid, at equilibrium: Ka- [H3O*][CH;CO2 V [CH, CO2 H] =1.8×10"s In this case, you know Ka…

A: The pH is a negative logarithm of the concentration of hydrogen ions. pH = -log H+

Q: OUL UI 3 points. The boxes below contain a series of 0.1 M aqueous solutions of increasing pH where…

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Q: If we used H2C4H4O5 as the weak diprotic acid, which of the four species, H2C4H4O5, HC4H4O51-,…

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Q: If the acid ionization constant for HX is 5.44 x10-6 at 25 °C what is the ionization constant for…

A: Acid Ionisation constant Ka = 5.44*10-6  Let us suppose Ionisation  constant for conjugate base is…

Q: A diprotic base (B) has pK, values of 3.33 (pK5i) and 6.66 (pK2). Which of the equalities is true…

A: Here we have to determine the predominant species of a diprotic base B at different pH. Given pKb1=…

Q: Carbonic acid (H2CO3) is a weak diprotic acid. Write expressions for Ka1 and Ka2 of H2CO3. Note that…

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Q: Constants | Periodic Ta 2,2-Dimethylpropanoic (or pivalic) is a weak organic acid that has a pungent…

A: A carboxylic acid and alcohol react with each other form ester. Conjugate base of weak acid is…

Q: Safari File Edit View History Bookmarks Window Help )) 48% Sun 10:59 AM…

A: The following compounds are to be classified as acid, base, salt or other: HCOOH, CH3CH3, NaOH,…

Q: True or false: the following species is amphiprotic. (Say for all of below.) I. HPO, 2- II.…

A: Amphiprotic - An amphiprotic molecule (or ion) can either donate or accept a proton, thus acting…

Q: The pKa of benzoic acid is 4.2 Using henderson hasselbalch equaequation calculate the ratio of…

A: Given:: pKa = 4.2 pH = 7.9 ratio [R-COOH] : [R-COO-] = 1: ?

Q: A diprotic base (B) has pK, values of 3.33 (pKpi) and 6.66 (pK82). Which of the equalities is true…

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Q: 1) Calculate the concentration of C6H6O62- in an aqueous solution of 4.04×10-2 M ascorbic acid,…

A: H2C6H6O6  + 2H2O --> C6H6O62-  + 2H3O+  No. of molecules 1  M                     2…

Q: Båse your answer on the data from the chart below. Acid H* Base K H30 H20 10 x 100 HOOCCOOH HOOCCOO…

A: Introduction: According to Bronsted Lowry concept, an acid is a substance which can donate protons…

Q: 云2 00 1Gmail C YouTube sdew Laverme conjugate aciu-pase palrs IIT Te givenTTeatuon. (ruoi, 5 or oj)…

A: According to Bronsted-Lowry acid-base concept, an acid is a species which can donate proton and a…

Q: Bicarbonate reacts with water to produce carbonate ions and hydronium ions: HCO3 +H2O = CO2²- + H3O+…

A: According to Bronsted-Lowry theory, an acid is a proton donor and base is a proton acceptor. The…

Q: Which of the following will not act as a Bronsted base in water at 298 K, and not participate in…

A: Answer Which  of the following  will not act as a Bronsted base in…

Q: Arrange the following aqueous solutions, all at 25°C, in order of decreasing acidity. Rank from most…

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Q: The pH of a 1.5 M solution of butanoic acid (HC,H,O2) is measured to be 2.32. Calculate the acid…

A: The dissociation of HC4H7O2 in aqueous solution can be expressed as,…

Q: What is [OH-] of a solution consisting of 1.05 M NH3 and 0.98 M NH4NO3?

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Q: A diprotic base (B) has pK, values of 3.33 (pKpi) and 6.66 (pK62). Which of the equalities is true…

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Q: The pH of a 0.98M solution of propanoic acid (HC,H,O,) is measured to be 2.43. Calculate the acid…

A: c = 0.98 M pH = 2.43

Q: the Ka for the weak acid HA is 5.82 *10^-7. calculate the Kb for conjugate base A- at 25 °C. report…

A: Formula used :-  Ka×Kb = Kw Where Kw = 1×10-14

Q: The base protonation constant K, of lidocaine (C14H„NONH) is 1.15 × 10°. Calculate the pH of a 0.86…

A: Given, Kb of lidocaine, C14H21NONH = 1.15 × 10-8 Concentration of lidocaine = 0.86 M

Q: Based on the given K, values, rank the following acids from strongest (1) to weakest (5). Carbonic…

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Q: The pH of a 1.3 M solution of hexanoic acid (HC,H102) is measured to be 2.37. Calculate the acid…

A: Given, Concentration of hexanoic acid = 1.3M pH = 2.37 Acid dissociation constant (Ka) = ? To get…

Q: Which side does this equilibrium reaction favor?

A: An acid is a substance that gives ions in its solution whereas a basic substance gives  ions in its…

Q: The acid dissociation constant K, of hydrocyanic acid (HCN) is 6.2 × 10 0. Calculate the pH of a…

A: The acid dissociation constant for the HCN is = 6.2×10-10 The concentration of HCN solution is = 4.9…

Q: 16.80 a

A: Given that the initial concentration of NaF IS 0.105 M. Na+ will not have any impact on pH since it…

Q: 2. Which of the following is polyprotic acid? following statement is/are corc a. Benzoic acid…

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Q: Values of K, for Some Common Weak Bases Conjugate Acid Name Formula Kp NH, CH;NH3* CH§NH3* CH;NH3+…

A: Buffer solution is formed by solution of weak acid and salt of weak acid or conjugate base.  It is…

Q: ionises in water to produce benzoate, Benzoic acid, and hydronium, H3O+ ions. The acid ionisation…

A: ->Conjugate base can be formed by donating hydrogen ion by conjugate acid.

Q: At a temperature of 298K the value of Ka for ethanoic acid is 1.70 * 10$moldm3. c. Calculate the pH…

A: We will calculate both parts with the help of given information

Q: The base protonation constant K, of lidocaine (C,4H2 NONH) is 1.15 × 10¯°. (14 Calculate the pH of a…

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Q: Select the weakest acid from amongst the set below. Assume the same concentration in aqueous…

A: The acidic strength of a compound depends upon its ability to lose H+ ions. The acid…

Q: Consider the Ka values for the following acids: Cyanic acid, HOCN, 3.5 × 10–4

A: Weak acids do not ionized completely , 100 % dissociation does not takesplace , an equilibrium is…

Q: The pH of a 1.3 M solution of hydrocyanic acid (HCN) is measured to be 4.55. Calculate the acid…

A: The acid dissociation constant (Ka) is a quantitative measurement of the acid strength of the…

Q: The pH of 0.005 M H2SO4. Answer in 3 significant figures

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Q: chemcollective.org/activities/autograded/124 (Upd NMAT Reviewers 4 NMAT Reviewers -.. Blackboard…

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Q: 3. Write a chemical equation using full structures which represents the reaction between acetic acid…

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Q: Calculate the pH of a 0.50 M tartaric acid solution (pK₁1 = 2.89; pK₂2 = 4.40). Express your answer…

A: Given data :  1. Concentration (c) = 0.50 M  2. pKa1 = 2.89  3. pKa2 = 4.40  To calculate : pH

Q: The pH of a 0.89M solution of carbonic acid (H, CO,) is measured to be 3.20, Calculate the acid…

A: The equilibrium constant for a reaction is expressed in terms of the ratio of the concentration of…

Q: Calculate the pH at 25 °C of a 0.72M solution of lidocaine HCI (C4H2,NONH,CI). Note that lidocaine…

A: The value of pKb for the given weak base is = 7.94 The concentration of the base solution is = 0.72…

Q: c) At pH 1.58, calculate the free [CO32-] when [CO32-]t = 48 mM. You can either solve 3 simultaneous…

A: Given TOTCO3 = 48 mM or 4.8*10-2 M  => [H2CO3] + [HCO3-] + [CO32-] = 4.8*10-2 M   K values of…

Q: The pH of a l1.1 M solution of hydrocyanic acid (HCN) is measured to be 4.58. Calculate the acid…

A: Since HCN is a weak monoprotic acid. hence it will dissociate partially as per the reaction  HCN…

Q: How do I solve?

A: The balanced chemical equation for the combustion of octane is,C8H18 + 25/2 O2 → 8CO2 + 9H2O