Campbell Biology: Concepts & Connections (9th Edition)
9th Edition
ISBN: 9780134296012
Author: Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 5TYK
A solution at pH 6 contains _____H+ than the same amount of a solution at pH 8.
a. 20 times more
b. 100 times more
c. 2 times less
d. 100 times less
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The solubility of KI is 50 g / 100 g of water at 20 °C. If 110 g
of Kl are added to 200 g water
A. All of the Kl will dissolve
B. The solution will freeze
C. the container of the solution will feel warm to the
touch
D. a saturated solution will form
E. an unsaturated solution will form
What is the concentration in % (w/w), of a solution prepared
by mixing 50.0 g NaCl and 150.0 g water?
A. 0.250 %
B. 33.3 %
C. 40.0 %
D. 25.0 %
E. 3.00 %
A pH of 3 is a. basic b. neutral c. acidicd. a buffer
Chapter 2 Solutions
Campbell Biology: Concepts & Connections (9th Edition)
Ch. 2 - Fill in the blanks in this concept map to help you...Ch. 2 - Create a concept map to organize your...Ch. 2 - Changing the _____ would change it into an atom of...Ch. 2 - What is chemically nonsensical about this...Ch. 2 - A solution at pH 6 contains _____H+ than the same...Ch. 2 - Most of the unique properties of water result from...Ch. 2 - A can of cola consists mostly of sugar dissolved...Ch. 2 - Prob. 8TYKCh. 2 - In what way does the need for iodine or iron in...Ch. 2 - Use carbon-12, the most common isotope of carbon,...
Ch. 2 - In terms of electron sharing between atoms,...Ch. 2 - The diagram below shows the arrangement of...Ch. 2 - Prob. 13TYKCh. 2 - What do you think the effect on the properties of...Ch. 2 - SCIENTIFIC THINKING A recent experimental study...Ch. 2 - In agricultural areas, farmers pay close attention...Ch. 2 - This chapter explains how the emergent properties...
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- Red blood cells from a healthy individual were placed in each of the following solutions and observations were made after 1 hour. Cells would have most likely have lysed when placed in a. 1.2% NaCl b. 0.9% NaCl c.3.8% NaCl d. 0.3% NaClarrow_forwardWhich of the following materials will have the greatest effect on colligative properties of a solution? a. CH3CI b. NaCl c. (NH4)2SO4 d. CH3CH2OH O A O Darrow_forwardA mixture containing glutamic acid, arginine, phenylalanine and valine was subjected to anion exchange chromatography at pH 7.0. Which of the amino acids interacted with the resin (anion exchanger) and last to be eluted with a buffer of decreasing pH? A. Glu B. Val C. Phe D. Argarrow_forward
- A dialysis bag containing a 3 M solution of the sugarfructose is placed in the following solutions. In each case,give the direction in which water flows.a. 1 M sodium lactateb. 3 M sodium lactatec. 4.5 M sodium lactatearrow_forwardWhen some of the sugar added to iced tea remains undissolved on the bottom of the glass, the solution can be described as A. dilute В. polar C. nonpolar D. saturated E. unsaturatedarrow_forwardwhich of the following is a characteristic of a buffer? a. The pH will go down significantly when H3O+ is added to the buffer b. The pH will go down very slightly when H3O+ is added to the buffer c. The pH will go up significantly when H3O+ is added to the bufferarrow_forward
- What is the pH of a cleaning solution with a [H3O*] = 7.4 x 10-10 M H3O*? A. 7.4 B. 9.00 C. 8.13 D. 9.13 E. 7.13arrow_forwardTable 2. Volume of BSA, protein content, and absorbance readings of reference solutions Solution Volume of BSA standard solution (μL) Protein content(μg/mL) Absorbance value At 595 nm 1 0 0 0 2 10 1 0.022 3 30 3 0.065 4 50 5 0.106 5 70 7 0.178 6 100 10 0.299 7 120 12 0.380 Make a graph by plotting the absorbance values versus the BSA protein content (in μg) for theseven reference solutions. When constructing the graph, be…arrow_forwardYou can elute the bound proteins from the Diethylaminoethyl (DEAE) sepharose column by A. increasing the salt (NaCl) concentration B. decreasing the pH of the buffer on the column C. increasing the pH of the buffer on the column D. either "A" or "B" O E. either "A" or "C"arrow_forward
- Matching Type Sample Type of Solution A. Isotonic 1. Sample A (1 cup syrup) 2. Sample B (1 ½ tablespoon syrup) 3. Sample C (purely distilled water) B. Suspension C. Hypotonic D. Hypertonicarrow_forwardHow many ml of a 40% solution can be prepared from 42.8 mg of sucrose? How many ml of a 40% solution can be prepared from 42.8 mg of sucrose? Question 3 options: b. 0.107 µl e. 1.09 µl a. 1.11 µl c. 10.08 µl d. 2.08 µlarrow_forwardWhat is the pH of 0.6M acetic acid?a. 4.5 x 10 ^-7b. 3.33 x 10^ -3c. 2.1 x 10 ^-3 d. 1.33 x 10 ^-5arrow_forward
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