Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Question
Chapter 3, Problem 3IQ
a.
Summary Introduction
To determine: The amount of lactic acid (C3H6O3) present in 1 liter of a 0.5M solution of lactic solution.
Introduction: Molarity is the concentration of ‘n’ number of moles (mol) of solute per liter (L) of a solution.
b.
Summary Introduction
To determine: The number of lactic acid molecules in the given solution.
Introduction: Mole is the amount of substance that has a mass in grams numerically equivalent to its molecular mass. Molecular mass is the sum of the mass of all atoms in the molecule.
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Students have asked these similar questions
At what pH does a lysine solution exhibit the highest buffering
capacity? (Lysine pKas: pk1 = 2.2, pK2 = 8.95, pK3 = 10.5)
%3D
O рH 12.1
О рH 9.72
O pH 5.67
pH 8.95
Which of the following is TRUE if pH is higher than the pka of the
buffer?
O [weak acid] approximately 0
O [conjugate base] = [weak acid]
[conjugate base] > [weak acid]
O [conjugate base] < [weak acid]
Consider a buffer solution of acetate. The volume is 500 ml, the concentration is 200 mM,
and the pH is 5.0.
a. How many total moles of acetate plus acetic acid are present in the solution? Express
answer as x.y with one digit before and one after the decimal place.
b. What is the ratio of acetate ions (Ac-) to acetic acid ions (HAc) in the buffer solution (pH
5.0) if the pka is 4.76? Express the answer as x.yz with one digit before and two after the
decimal place.
c. How many moles of acetate are present in the solution? Express your answer to one
decimal place.
d. How many moles of acetic acid are present in the solution? Express your answer to one
decimal place.
Chapter 3 Solutions
Study Guide for Campbell Biology
Ch. 3 - Draw the four water molecules that can...Ch. 3 - The following concept map is one way to show how...Ch. 3 - Prob. 3IQCh. 3 - Complete the following table to review your...Ch. 3 - Prob. 5IQCh. 3 - a. Add to the formula in Interactive Question 3.5...Ch. 3 - Fill in the following table, which summarizes the...Ch. 3 - To become proficient in the use of the concepts...Ch. 3 - Each water molecule is capable of forming a. three...Ch. 3 - The properties of water make it an ideal and...
Ch. 3 - What accounts for the movement of water up the...Ch. 3 - Climates tend to be moderate near large bodies of...Ch. 3 - You have three flasks containing 100 mL of...Ch. 3 - A burn from steam at 100C is more severe than a...Ch. 3 - Evaporative cooling is a result of a. the release...Ch. 3 - Prob. 8TYKCh. 3 - Prob. 9TYKCh. 3 - Prob. 10TYKCh. 3 - Prob. 11TYKCh. 3 - Prob. 12TYKCh. 3 - Prob. 13TYKCh. 3 - Consider two solutions labeled A and B. Solution A...Ch. 3 - What does a buffer do? a. moderates pH changes b....Ch. 3 - Prob. 16TYKCh. 3 - Prob. 17TYKCh. 3 - Prob. 18TYK
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