The pH of a 0.55 M aqueous solution of hypobromous acid, HBRO, at 25.0 °C is 4.48. What is the value of Ka for HBRO? 2.0 x 10-9 6.0 x 10-5 3.0 x 104 1.1 x 10-9 3.3 x 105

Q: A 0.010 M solution of a weak acid, HA, has a pH of 3.10. What is the K, of the acid? 6.3 x 106 6.3…

A: pH is the negative logarithm of the hydronium ion concentration of a solution. Given:- pH = 3.10…

Q: Calculate the pH of a 0.23 M sodium formate solution (HCOONA). Kp for HCOO = 5.9 x 10-11

A: Given that,    Concentration of HCOONa solution = 0.23 M   Kb for HCOO-  = 5.9×10-11  Since, pKb =…

Q: What is the pH (to two decimal places) of a 0.25 M HF and 0.25 M potassium fluoride aqueous solution…

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Q: Phosphoric acid dissociates to form phosphate anion and hydronium cation. The K, for this reaction…

A: Ka is the acid dissociation constant which may be expressed as the ratio of the multiplication of…

Q: A 0.0200 M solution of a certain monoprotic weak acid is 18.0% ionized. What is the value of Ka for…

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Q: Calculate the pH at 25 °C of a 0.60M solution of sodium benzoate (NaCH,CO2). Note that benzoic acid…

A: Given: [C6​H5​CO2−​]=0.60M;pKa​(C6​H5​CO2​H)=4.20;pH=???Step 1: Write the dissociation of…

Q: Assume the following substances form solutions at the same concentration, whicch one would provide…

A: According to Arrhenius concept, an acid is a substance i.e. when dissolved in water gives H+ ions.…

Q: The acid ionization constant for Co (H20)62 + (aq) is 3.0|times 10 - 10. Calculate the pH of a…

A: Information about the question

Q: A sample of gas is at 45.0 °C. At what temperature would the volume of this gas be the double of the…

A: Dear student , since you have posted multiple questions we will allow to solve only first question…

Q: pH

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Q: +]=[ = = nt of a very weak ac M M M Calculate the equi

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Q: What is the pH of a 0.15 M HOBr solution (Ka = 2.3 x 10-9)?

A: Given Data : 1. Ka = 2.3 x 10-9  2. Concentration C = 0.15 M

Q: In the laboratory, a general chemistry student measured the pH of a 0.578 M aqueous solution of…

A: For a weak acid, we have       pH = 1/2(pKa - logA) where A is the concentration of the acid. Given,…

Q: Given that Ka for HClO is 4.0 x 10-8 at 25 °C, what is the value of Kb for ClO at 25 °C? Kb = Given…

A: The product of the acid dissociation constant of an acid and the base dissociation constant of a…

Q: A certain weak base has a Kp of 7.40X . What concentration of this base will produce a pH of 10.18?…

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

A: Given-> Concentration of KCN = 0.0795 M Ka(HCN) = 6.20 × 10-10

Q: What is Ka for a weak monoprotic acid if a 0.020 M solution of the acid has a pH of 3.28 at 25°C? O…

A: To find Ka value of a weak acid, first find out hydronium ion concentration and from that find out…

Q: Formic acid, HCOOH, ionizes in water according to the following equation. The equilibrium constant…

A: :- This question is answered by using the simple concept of ionisation of weak acid and then using…

Q: 0.1 M solution of the acid has pH = 4.70. What is K₁ of the acid?

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Q: 8.0 x 10-10

A: Using pH formula for weak acid, pH = 1/2(pKa - logC) 4.70 = 1/2(pKa - log(0.50)) pKa = 9.10

Q: What is the pH of a substance with a hydrogen concentration of 3.0 x 10-12?

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Q: Heroin, a derivative of morphine, is a powerful analgesic and a powerful narcotic agent. Calculate…

A: Heroine is a base.

Q: A solution is prepared at 25 °C that is initially 0.36M in chlorous acid (HCIO₂), a weak acid with…

A: pH of buffer solution is calculated by using Henderson Hessalbalch equation

Q: Trimethylamine, (CH3)3N, is a gas with a fishy, ammonia-like odor. An aqueous solution that is 0.36…

A: Given, pH = 11.68 We know that, pH + pOH = 14 And, pOH = -log[OH-] Thus, pOH  = 14-pH         =>…

Q: What is the pH of a 0.0125 M hyploclorous acid? (Ka= 3.0 x 10-8)

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Q: Heroin, a derivative of morphine, is a powerful analgesic and a powerful narcotic agent. Calculate…

A: Here given pH is greater than 7 thus basic.  Hence, heroine is a base.  Now, using given pH to…

Q: Hydrogen lon Concentration pH Basic/Acidic 1.0.0015 2. 5.0x109 3. 1.0 4. 1.0x10-12 5. 0.0001 6. 1.00…

A: The pH of a solution is calculated by taking negative log of the concentration of hydrogen ions.  If…

Q: Which of the following statements is/are correct at 25 °C? 1. Benzoate (C,H;O2) requires a Ka to…

A: To determine pH we need Ka or Kb value. Which among Ka or Kb is used depends on the nature of…

Q: The value of K₂ for acetylsalicylic acid (aspirin), HC,H704, is 3.00×10-4. Write the equation for…

A: Given -> Ka of HC9H7O4 = 3.00 × 10-4

Q: 11. For the weak base piperidine, C;H;0NH, K = 1.30 x 10°. What is the equilibrium concentration of…

A: An ICE table is constructed to determine the equilibrium concentration of all the species present in…

Q: What is the hydronium ion concentration of a 0.010 M solution of acetic acid? Ka for acetic acid is…

A: Answer is given below

Q: The equilibrium concentrations for a solution of the acid HA are [HA]=2.16 M, [A−]=0.0173 M, and…

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Q: A strong base, such as sodium hydroxide (NAOH), is added in a solution of 0.1 mol/L acetic acid…

A: Given:     Here we have to use the concept of buffer solution and apply the Handersons equation for…

Q: Calculate the pH at 25 °C of a 0.56M solution of sodium benzoate (NaC HCO₂). Note that benzoic acid…

A: Answer:- This question is answered by using the simple concept of calculation of pH of aqueous…

Q: A 0.030 M aqueous solution of a sodium salt (NaA) has a pH of 8.23. What is the value of K, for the…

A: The correct answer is given below

Q: Calculate the pH of 3.5M citric acid solution at 25⁰C when the Ka is 7.1 x 10-4.

A: Give information: Concentration of solution = 3.5 M Ka is 7.1 x 10-4

Q: The weak acid, HA, has a Ka of 3.00 x 10-8. What is the Kp of its conjugate base, A"?

A: Given :- Ka for weak acid HA = 3.00 × 10-8  To calculate :- Kb for conjugate base A-

Q: The pH of a 0.15 M solution of a weak monoprotic acid, HA, is 2.92. Calculate the Ka for this acid.…

A: Given data,Molarity of HA=0.15MpH=2.92

Q: 0.40 M solution of hydrocyanic acid, HCN, has a Ka of 4.93 x 10-10.  What is the pH of this…

A: HCN is weak acid it dissociated feabily in aqueous solution

Q: An 8.00 M solution of a weak acid, HA, is 0.47% ionized. What is the K, of the weak acid? 2.66 x…

A: Concentration of weak acid = 8.00 M  Degree of dissociation (α ) = 0.47 %  Or degree of dissociation…

Q: The Ka of acetic acid (HC2H302) is 1.8 x 10-5. What is the pOH at 25.0 °C of an aqueous solution…

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Q: CH, NH, is a weak base (Kp = 5.0 x 10-4), so the salt CH,NH, NO, acts as a weak acid. What is the pH…

A: CH3NH3NO3 is a salt made from weak base CH3NH2 and strong acid HNO3.  So, solution of CH3NH3NO3 is…

Q: The Ka for HClO is 3.0 x 10-8. Calculate [H+] at equilibrium if the initial [HClO] = 0.075M.

A: Let the reaction at equilibrium is- The Dissociation Constant (Ka) is given by the expression as-…

Q: The pH of a 0.50 M aqueous solution of a weak acid at 25.0 °C is 1.43. What is the value of K, for…

A: Correct : 2.8×10-3 Given that,  Concentration of weak acid solution, [C] = 0.50 M pH of an aqueous…

Q: 6. Which of the following has the highest pH? a. 1.00 M NaNO3 b. 1.00 M NaNO2 c. 1.00 M NaH,PO4 d.…

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Q: The acid ionization constant for Al(H₂O)63+ (aq) is 7.9x10-6. Calculate the pH of a 0.0563 M…

A: Given data :