Answered: A buffer solution contains 0.361 M…

A buffer solution contains 0.361 M KHCO3 and 0.221 M Na₂CO3. Determine the pH change when 0.098 mol NaOH is added to 1.00 L of the buffer. pH after addition - pH before addition = pH change=

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section: Chapter Questions

Problem 111GQ: One half liter (500. mL) of 2.50 M HCl is mixed with 250. mL of 3.75 M HCl. Assuming the total...

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6. A buffer is prepared by adding 20.0 g of sodium acetate (CH3COONa) to 500 mL of a 0.150 M acetic acid (CH3COOH) solution. (A) write the complete ionic equation for the reaction that occurs when a few drops of hydrochloric acid are added to the buffer. (B) Write the complete ionic equation for the reaction that occurs when few drops of sodium hydroxide solution are added to the buffer. Group of answer choices a.) (A) CH3COO-(aq)+ H+ (aq) --->CH3COOH(aq) (B) CH3COOH(aq) + OH-(aq)--->CH3COO-(aq)+H2O(l) b.) (A) Na+ (aq)+ CH3COO-(aq)+ H+ (aq)+CI-(aq) --->CH3COOH(aq)+Na+(aq)+CI-(aq) (B) CH3COOH(aq)+Na+(aq)+ OH-(aq)--->CH3COO-(aq)+H2O(l)+Na+(aq) c.) (A) Na+ (aq)+ CH3COO-(aq)+ H+ (aq)+CI-(aq) --->CH3COOH(aq)+Na+(aq)+CI-(aq) (B) CH3COOH(aq) + OH-(aq)--->CH3COO-(aq)+H2O(l) d.) (A) CH3COO-(aq)+ H+ (aq) --->CH3COOH(aq) (B) CH3COOH(aq)+Na+(aq)+ OH-(aq)--->CH3COO-(aq)+H2O(l)+Na+(aq)
What is the molar concentration of Cl– in a solution prepared by mixing 25.0 mL of 0.025 M NaCl with 35.0 mL of 0.050 M BaCl2? What is pHCl for the mixture?
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11. TAPS is the acronym of ((tris(hydroxymethyl)methylamino)propanesulfonic acid), which is a chemical compound commonly used to make buffer solutions. A TAPS buffer solution is prepared by mixing 2 solutions. The first solution is 200.0 mL and it contains 52.661 grams of TAPS. The buffer solution is prepared by adding 51.92 mL 0.9832 M KOH solution to the first solution. Assume that the volume is additive. At 25 °C, the pKa of TAPS is 8.441. C7H₁7NO6S + KOH → C₂H₁6NO6SK + H₂O Determine the equilibrium concentration of TAPS in the buffer solution. Please provider your answer below. A. B. Determine the equilibrium concentration of C7H16NO6SK in the buffer solution. Please provider your answer below. f $ + $ Determine the pH of the buffer solution. pH = Please provider your answer below. $ M M