BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 2, Problem 12SA
When dissolved in water, a(n) _________ donates
| a. | acid; base | c. | buffer; solute |
| b. | base; acid | d. | base; buffer |
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When dissolved in water, a(n) ________ donates H+;a(n) ________ accepts H+.a. acid; base c. buffer; soluteb. base; acid d. base; buffer
Mark the following statements as true or false. If a statement is false, correct it to make a true statement. a. Acids dissociate in water to give hydrogen ions and an anion. b. Bases are defined as hydrogen ion donors. c. As a solution’s pH rises, it becomes more acidic. d. A buffer is a system of chemicals that resists a change in pH. e. A solution with a pH of 10 has more hydrogen ions than a solution with a pH of 2.
A buffer system consists of
A. a weak acid and its conjugate base.
B. a weak acid and a proton donor.
C. a weak acid and a proton.
D. a weak base and a proton acceptor.
Chapter 2 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 2 - What atom has only one proton? a. hydrogen c. a...Ch. 2 - A molecule into which a radioisotope has been...Ch. 2 - Prob. 3SACh. 2 - Prob. 4SACh. 2 - All ions have at least one ________ select all...Ch. 2 - Rank the following chemical bonds in order of...Ch. 2 - The mutual attraction of opposite charges holds...Ch. 2 - Atoms share electrons unequally in an _______...Ch. 2 - An _________ substance repels water. a. acidic c....Ch. 2 - A salt does not release ______ in water. a. ions...
Ch. 2 - Hydrogen ions H+ are _____. a. in blood c....Ch. 2 - When dissolved in water, an _________ donates H+;...Ch. 2 - An ________ can help keep the pH of a solution...Ch. 2 - Prob. 14SACh. 2 - Prob. 15SACh. 2 - Alchemists were the forerunners of modern-day...Ch. 2 - Draw a shell model of a lithium atom Li, which has...Ch. 2 - Polonium is a rare element with 33 radioisotopes....Ch. 2 - Some undiluted acids are not as corrosive as when...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Using a pH meter, you find the pH of an unknown solution to be 8.0. How would you describe this solution? a. weakly acidic b. strongly acidic c. weakly basic d. strongly basicarrow_forwardWhen dissolved in water, a(n) _____ donates H+ and a(n) ______ accepts H+. a. acid; base b. base; acid c. buffer; solute d. base; bufferarrow_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
- which 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_forwardIn the human body,the -log of the hydrogen ion concentration ([H+]) is regulated by a. pH b. Acidity c.Alkalinity d.Bicarbonate ion e. Buffer systemarrow_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
- Which of the following statements is true? a. Acids and bases cannot mix together. b. Acids and bases will neutralize each other. c. Acids, but not bases, can change the pH of a solution. d. Acids donate hydroxide ions (OH–); bases donate hydrogen ions (H+).arrow_forwardIf 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_forwardWhich among the following is an example of a pharmaceutically important buffer system? a. All of the choices b. Sorensen's buffer c. Palitzsch's buffer d. Gifford's bufferarrow_forward
- Which of the following is most likely to be found evenly distributed in water in a homogeneous solution?a. sodium ions and chloride ionsb. NaCl moleculesc. salt crystalsd. red blood cellsarrow_forwardWhich of the following solutions has the greatest concentration of hydroxyl ions [OH-]? Select one: a. lemon juice at pH 2 O b. vinegar at pH 3 O c. tomato juice at pH 4 O d. urine at pH 6 e. seawater at pH 8arrow_forwardSubstances 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_forward
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