Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 4 - Reactions in Aqueous Solution - Exercises - Page 160: 4.61b

Answer

0.1575 mol protons

Work Step by Step

You have 35mL of 4.50M Nitric Acid solution. 4.50M means you have 4.50 mol/L. You have 35mL, which is 35mL*(1L/1000mL) = 0.035L. Therefore, we have 4.50 mol/L * 0.035L = 0.1575 mol of Nitric Acid HNO3. There is 1 mol of protons in each mol of Nitric Acid. Therefore, we have 0.1575 mol protons.
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