Lehninger Principles of Biochemistry 6th Edition

Published by W.H. Freeman
ISBN 10: 1-42923-414-8
ISBN 13: 978-1-42923-414-6

Chapter 2 - Water - Problems: 6



Work Step by Step

pH = [H] [H] =[HCl], because HCl dissociates completely [HCl] is 2.5 moles per liter or 0.0025 in one mL: For 3 mL it is 0.0075 moles 3 mL is diluted to 100 mL So, 0.0075 moles in 100 mL or 0.075 moles per liter Final [HCl] = 0.075 M = [H] pH= -log [$7.5\times10^{-2}$] = 1.1
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