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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Textbook Question
Chapter 3, Problem 14TYK
Consider two solutions labeled “A” and “B.” Solution A has a pH of 6 and solution B has a pH of 9. Solution A has a hydrogen ion concentration that is
- a. 3 times higher than that of solution B.
- b. 3 times lower than that of solution B.
- c. 1,000 times higher than that of solution B.
- d. 1,000 times lower than that of solution B.
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A base
a. has a value below 7 on the pH scale.
b. is a chemical that adds hydrogen ions to a solution.
c. has a value of 7 on the pH scale.
d. is a chemical that absorbs hydrogen ions from a solution.
A solution with a pH of 2 than a solution with a pH of 8.a. has less H+b. has more H+c. has more OH−
Answer the following about drawing the attractive force between a water molecule (H2O) and an ammonium ion (NH4*).
The
on the O in the water molecule is attracted to the
of the ammonium ion.
a. partial + charge
b. partial - charge
c. full + charge
d. full - charge
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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- Compare the values below. Which is greater, or are the two values equal? A. Solubility of uric acid in water B. Solubility of ammonia in water O A is greater than B O Bis greater than A O the values are equal Next 1 Previousarrow_forwardWhat is the pH of a solution that has a higher concentration of H+ ions than water? A. > 7 B. 7 C.< 7arrow_forwardAdding HCO3 to a solution will cause the concentration of H* to - and the pH to. Select one: O a. increase; increase O b. increase; decrease O c. decrease; increase O d. decrease; decrease O e. HCO3 has no effect on H* concentrationarrow_forward
- If the addition of an acid or a base to a solution does not change its pH (or changed minimally), then that solution is referred to as a a. acid b. base c. buffer d. neutral solutionarrow_forwardConsider a solution which is 0.10 M in CH3COOH and 0.20 M in NaCH3coo. Which of the following statements is TRUE? A. If a small amount of NaOH is added, the pH decreases very slightly. B. If NaOH is added, the OH- ions react with the CH3CO0 ions. C. If a small amount of HCl is added, the pH decreases very slightly. D. If HCI is added, the H* ions react with CH3COOH ions. E. If more CH3COOH is added, the pH increases.arrow_forwardWhich of the following describes a buffer? A. The measure of the amount of hydrogen ions in a liquid B. A set of chemicals that can keep the pH of a solution stable by alternately donating and accepting the ions that contribute to pH C. A substance that releases hydrogen ions in water D. A substance that accepts hydrogen ions in waterarrow_forward
- Substances those are partially dissolved in water are commonly known as اخترأحد الخيارات a. hydrophilic / hydrophobic b. false statement c. hydrophilic d. hydrophobic e. all given choices are incorrectarrow_forwardIn A, describe the movement of water as solute is added to the right side. H20 Pure water Negative pressure Positive pressure H,0 H,0 H,0 Solute A B.arrow_forwardWhich of the following is FALSE when the concentration of the buffer solution was increased? a. The buffer will be effective in resisting pH changes. b. There will be more weak acid components that can neutralize the added base. c. The solution will have a higher buffer capacity. d. There will be more weak base components that can neutralize the added base.arrow_forward
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