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Exam 10: Acids, Bases, and Salts

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Question 31

Multiple Choice

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Characterize the following solution using the response list: aqueous NaCN solution.

A) an acidic solution
B) a basic solution
C) a neutral solution
D) a buffer solution

E) A) and D)
F) All of the above

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Question 32

Multiple Choice

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Which of the following is produced in the first step of the dissociation of the acid H₃PO₄?

A) H₃PO₃
B) H₂PO₄^-
C) HPO₄^2-
D) PO₄^3-

E) A) and B)
F) B) and C)

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Question 33

Multiple Choice

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For the solution description, select a correct characterization from the response list: pH = 2.30.

Which of the following statements is correct for the Bronsted-Lowry acid-base reaction

In which of the following salts would both the positive ion and the negative ion hydrolyze when the salt is dissolved in water?

Select from the response list for the acid that best fits the description: an acid that has two nonacidic hydrogens.

A buffer is a substance or combination of substances whose presence in an aqueous solution will

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) Formation of a coordinate covalent bond is always part of a Bronsted-Lowry acid-base reaction. (2) The compound H₂CO₃ is both a strong acid and a diprotic acid. (3) The pH of a solution with [OH^-] = 1 10^-8 is 6.0.

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) All rainfall, even in unpolluted areas, is acidic. (2) Blood plasma, interstitial fluid, and intracellular fluid, the three general types of body fluids, all contain electrolytes. (3) Blood plasma is slightly acidic because ions it contains undergo hydrolysis.

Which of the following is not a conjugate acid/base pair?

Which of the following species is formed in the second step of the ionization of the triprotic acid H₃PO₄?

In which of the following pairs of acids are both members of the pair strong acids?

Select from the response list the compound that best fits the description: a salt whose dissociation produces equal amounts of two ions.

Select from the response list the compound or ion that best fits the description: reacts with OH^- to form HPO₄^2-.

Which of the following is a correct statement for a solution with a pH of 8.00?

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) A Bronsted-Lowry base must contain an atom that can accept a proton. (2) Both acidic and nonacidic hydrogen atoms may be present in an acid molecule. (3) The molar hydronium ion concentration in a solution of pH 6.0 is 1 ? 10^-6.

In which of the following pairs of acids are both members of the pair strong acids?

Characterize the following solution using the response list: aqueous HCl solution.

A buffer solution could be prepared from

Characterize the following solution using the response list: aqueous NH₄Cl solution.