Answer
About 3 3/4
Work Step by Step
Look at the graph. Note that pH 4 is reached at about 1x and pH 6 at between 4x and 5x. If you guesstimate that pH 6 is at 4.75x, then 4.75x-1x=3.75x volumes of base were needed.
Biology (11th Edition)
by Raven, Peter; Johnson, George; Mason, Kenneth; Losos, Jonathan; Singer, Susan
Published by
McGraw-Hill Education
ISBN 10:
1259188132
ISBN 13:
978-1-25918-813-8
Chapter 2 - The Nature of Molecules and the Properties of Water - Figure 2.17 - Data Analysis - Page 30: 1
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