Which of the following acids is the best to prepare a buffered solution with a pH = 3.50? Justify your answer. a. CsH;O,COOH, K, =4.0 x 106 b. HOC,H,OCOOH, K, = 1.0 x 103 c. HBrO, K, = 2.3 x 109 d. CoHa(COOH)2, K, = 2.9 x 104

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: 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: The following reactions all have K < 1. 1) CIO (aq) + CGH;OH (aq)= HCIO (aq) + C,HsO (aq) 2) НСОО…

A: We need to arrange the given ions and compounds according to their base strength.

Q: What is the pH of a 40.0 mL solution that is 0.19 M in CN and 0.25 M in HCN? The K, for HCN is 4.9 x…

A: HCN ---- &gt; H+ + CN-  Assuming y concentration of HCN is dissociated from the above reaction…

Q: HX (M = 150. g/mol) and HY (M = 50.0 g/mol) are weak acids. A solution of 12.0 g/L of HX has the…

A: Given data: The molar mass of HX = 150. g/mol. The molar mass of HY = 50.0 g/mol. The mass of HX =…

Q: A solution is made by dissolving 0.0890  moles of Ba(OH)2 in enough water to make 615  mL of…

A:

Q: 2)[CLO-1] The aqueous solution of H;NCH;CH;NH, CI is going to be- Note that for ethylene diammonium…

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Q: Write an equation in which HSO3- acts as an acid. (Use the lowest possible coefficients. Be sure to…

A: ​​​​​​Conjugate Acid is the compound formed when the base accepts the Protons (or H+ ions)  while…

Q: A 0.15 M solution of an acid found in milk has a pH of 2.80. What is the percentage ionization of…

A: Given: concentration of acid = 0.15 M pH of solution = 2.80

Q: What is the PH of a solution in which 15 mL of 0.01M NaOH has been to 25 mL of 0.01M benzoic acid…

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Q: The H mil Vuy Me » 8. Consider the reaction: NaOH (aq) +HCI (aq) NaCl (aq) + H2O (1). You are given…

A: Molarity is defined as total number of solute present in 1000 ml of solution . For neutralisation we…

Q: What is the acid-ionization constant, Ka, for this acid?

A: Given data contains, Concentration of HA is 0.200 M. pH is 2.210. The given chemical equation is,…

Q: Consider the following ions: Cl-, HS-, NO2-, F-, and HS04-. (a) Which of these ions in water gives…

A: Given ions  Cl- HS- NO2- F- HSO4-

Q: Barbituric acid, HC4H3N2O3, is a weak acid that is used to prepare various barbiturate drugs (used…

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Q: What will the concentrations be for a, b, and c?  What is the pH of the solution?

A: Concentration = moles/volume.[pyridine] =mol/volume = 0.3mol/1 L = 0.3M.

Q: The pH of a 0.1 M solution of a monobasic acid P is 1.0 while the pH of a 0.2 M solution of another…

A: Here we have to explain the properties the two monobasic acid P and Q . Given - The pH of 0.1 M P is…

Q: 1) Consider HA (a strong acid) and HB (a strong base).  a. Write a balanced chemical reaction for…

A: Strong acid ionizes completely and increase H3O+ in aqueous solution. HA being a string acid it…

Q: 4.00 g KOH was added to the less basic solution in number 3. What will be the resulting pH of the…

A: Answer:- firstly the less basic solution is identified using  the concentration of hydroxide ions…

Q: Monochloroacetic acid, HC2H ClO,, is a skin irritant that is used in "chemical peels" intended to…

A:

Q: how do you counstruct a pH curve for a triprotic acid? For example 75.00 mL of 0.137 M H3PO4 with…

A: The acid dissociation constants for phosphoric acid are quite different from each other with pKa's…

Q: What is the pH of a soluti on prepared by dissolving 3.00 g of the weak acid HA (molar mass = 138.12…

A: The question is based on the concept of chemical equilibrium. we have to calculate pH of the…

Q: HСIO, (aq) + KОн (аq) KСIО, (aq) + H,0Ф) > AHixn = kJ/mol НBr(aq) + KOH(aq) — KBr(aq) + H,O(1) AHxn…

A: Interpretation -  To calculate the standard enthalpy of reaction for given all the acid - base…

Q: Cl2(aq) reacts with H,O(€) as follows: Cl2 (aq) + 2 H20(€) 2H;0* (aq) + Cl¯(aq) + HOCI(aq) For an…

A: In order to find the answer to the above question we try to analyze the given data: The reactants of…

Q: To what volume should 100 mL of any weak 0.30 molar monobasic acid (HA) or mono-acidic base (BOH) be…

A: According to the Le Chatelier principle, adding water to equilibrium would cause equilibrium left to…

Q: The pyridinium ion (C5H4NH) is a weak acid (Ka = 5.60 x 10-6). Calculate the pH of a solution that…

A:

Q: The pyridinium ion (C5H4NH*) is a weak acid (Ka = 5.60 x 10-6). Calculate the pH of a solution that…

A: Given that, the pyridinium ion is a weak acid. The Ka of it is Ka = 5.60×10-6. 3.7 mL of 0.167 M of…

Q: Of the following species, HNO2 , PO43- , HCO3- , one is amphiprotic in their reactions with water:…

A: The solution is given below -

Q: What would be the pH of a solution prepared by adding 0.130 moles of hydroxide ion to 0.26 moles of…

A: The balanced reaction between acid(HA) and base(BOH) to form salt(BA) and water(H2O) is as follows:…

Q: Calculate the pH of a mixture containing 0.23 M HONH2 and 0.44 M HONH3Cl. (Kb = 1.1 × 10–8)  What…

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Q: Calculate the pH if 10.00 mL of 0.200 M HCI is added to 50.00 mL of 0.0500 M diethylamine…

A: Given, Molarity of (CH3CH2)2NH, base = 0.05 M Volume of (CH3CH2)2NH = 50 mL = 0.05 L Molarity of…

Q: A beaker holds a mixture of 0.40 M HIO3 and 1.0 M HCOOH. Ka(HIO3) = 1.6 x 10-1 Ка(нсоон) = 1.77 ×…

A: Given: Ka (HIO3) = 1.6 × 10-1 Ka (HCOOH) = 1.77 × 10-4 We have to calculate the pH of a mixture of…

Q: .45 M solution of a newly discovered weak acid HZ has a pH of 2.60. What is the value of Ka for HZ?

A:

Q: HCN is a weak acid (Ka=6.20×10−10) , so the salt, KCN , acts as a weak base. What is the pH of a…

A: Weak acid are those acid which does not dissociate completely in aqueous solution and weak base are…

Q: If 15.0 mL of glacial acetic acid (pure HC2H3O2) is diluted to 1.50 L with water, what is the pH of…

A: Given Volume of solution = 1.50 L Volume of glacial acetic acid = 15.0 mL density of glacial acetic…

Q: 4. Which hydroxides are weak bases? А) КОН, Ва(ОН)2 E) None of these is a weak base. B) Sr(OH)2,…

A: Strong  bases are those which can dissociate completely and gives hydroxide ion.

Q: 16.46. (D)

A: Given information: Volume of Ba(OH)2 solution = 20.0 mL Concentration of Ba(OH)2 solution = 0.015 M…

Q: What feature must a molecule or ion have for it to act as a Lewis base? A Lewis acid? Explain the…

A:

Q: Which of the following statements about acids is true? O For a polyprotic acid, the first H*…

A: Among the given statements ,first statement is false as the first dissociation constant of a…

Q: Which of the following is true for the reaction of BF3 + HF HBF4? BF3 is the Lewis Base BF3 is the…

A: HF behave as a Lewis Base as it can donate lone pairs to the electron deficient species BF3 [H+] and…

Q: The diagrams here show three weak acids HA (A = X, Y, or Z) in solution.  (The hydrated proton is…

A: Given, Three acids HX, HY &amp; HZ. Hydronium ion is shown in figure (red).

Q: What will be the pH of the solution when 12.0 mL of 0.400 M KOH is added to a 25 mL of 0.200 M HOCI…

A: Given-&gt; Volume of KOH = 12.0 ml Molarity of KOH = 0.400 M Volume of HOCl = 25 ml Molarity of HOCl…

Q: 16.44 (c)

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

Q: The binding of oxygen by hemoglobin in the blood involves the equilibrium reaction:HbH+(aq) +…

A: Hemoglobin is the only protein in the human body that helps in the oxygen transportation throughout…

Q: The following reactions all have K > 1. 1) HNO2 (aq) + ClO (aq)=NO2 (aq) + HCIO (aq) 2) CH,COОH (аq)…

A: The given reactions are : All the reactions have K&gt;1.

Q: Esters, RCOOR′, are formed by the reaction of carboxylicacids, RCOOH, and alcohols, R′OH, where R…

A: A Lewis acid is therefore any substance, such as the H+ ion, that can accept a pair of nonbonding…

Q: Complete the K expression for the weak acid behavior represented by HCOOH(aq)H+(aq)+HCOO-(aq) and…

A: Complete the K expression for the weak acid behavior represented as given below.

Q: The weak acid HZ has a Kₐ of 2.55X10⁻⁴.(a) Calculate the pH of 0.075 M HZ.(b) Calculate the pOH of…

A: For weak acid HZ , pKa = -logKa = -log (2.55 x 10⁻⁴) = 4 -log2.55 = 4 - 0.40 = 3.60 (a)  pH of…

Q: 16.44 (b)

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

Q: What is the pH of a solution obtained by mixing 0.59 L of 0.100 M  Ba(OH)2 and 0.10 L of 0.118 M…

A: Acid and base are the chemical compounds which upon adding in water change the pH value accordingly.…