FULL SCREEN PRINTER Review Problem 16.110 A buffer is prepared containing 0 M NH

Question

FULL SCREEN PRINTER Review Problem 16.110 A buffer is prepared containing 0 M NH3 and 0.37 M NH Calculate the pH of the buffer using the K, for NH 5.6 x 10 10 for NH 4 pH the tolerance is +/-2% SHOW HINT LINK TO TEXT By accessing this Question Assistance, you wi learn while you earn points based on Point Potential Policy set by your instructor. the Question Attempts: o of 3 used SAVE FOR LATER Earn Maximum Points available only if you answer this question correctly in your first attempt. copyright c 2000-2017 by John wiley & Sons, inc. or related companies. All rights reserved lacy Policy I e 2000-2017 John wiley sons, unc, All Rights Reserved. A Division of John Sons, Inc. Wiley &

Explanation / Answer

The buffer is basic, since NH3 and NH4+ is present

pOH = pKb + log(NH4+/NH3)

pOH = 4.75 + log(0.37/0.15)

pOH = 5.1421104

ph = 14-pOH =14-5.1421104

pH = 8.857

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