**Educational Content: Calculating the Final pH of a Buffer Solution****Question:** What is the final pH of the solution when 0.26 mol OH⁻ in 0.25 L is added to 1.75 L of a buffer containing 1.55 mol HCN and 1.78 mol CN⁻? (Kₐ HCN = 4.9 × 10⁻¹⁰)**IMPORTANT:** When entering your answer:- Enter the number only (no units)- Do not leave any spaces- Include the sign if your answer is negative (not necessary for positive values)- Use a leading zero before the decimal when necessary- Report your number to 2 decimal places (regardless of the significant figures)- Correctly round your answer to the 2nd decimal place (margin of allowed error is only ± 0.01, so always use un-rounded numbers in your calculations). If the last digits are zeros they will not display once you click away, but the answer will still be marked correct.**Examples:** 12.34 or -0.56

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What is the final pH of the solution when 0.26 mol OH in 0.25 Lis added to 1.75 L of a buffer containing 1.55 mol HCN and 1.78 mol CN ? (Ka HCN = 4.9 x 10-10)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

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