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Acids and Bases Solutions Library

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16 solutions

Acids and Bases

Q. In a neutral solution the concentration of __________.a) hydrogen ions is less than the concentration of hydroxide ionsb) water molecules is less t...

Solved • Apr 22, 2020

Acids and Bases

Q. What is the arrow pointing to? a) hydrogen ion b) hydroxide ion c) water d) hydronium ion e) proton

Solved • Apr 22, 2020

Acids and Bases

Q. What is the arrow pointing to? a) electron b) hydroxide ion c) water molecule d) hydronium ion e) hydrogen ion

Solved • Apr 22, 2020

Acids and Bases

Q. Formic acid has a pKa of 3.75; acetic acid has a pKa of 4.76. Which is the stronger acid? Does the stronger acid have a greater or lesser tendency ...

Solved • Jul 10, 2018

Acids and Bases

Q. The molar ratio of HPO42- to H2PO4- in a solution is 1.4. What is the pH of the solution? Phosphoric acid (H3PO4) is a triprotic acid, with 3 pKa v...

Solved • Jul 10, 2018

Acids and Bases

Q. What is the pH of 40.0mL of a solution that is 0.13 M CN- and 0.21 M in HCN? For HCN, use Ka = 4.9 x 10-9.

Solved • Jun 29, 2018

Acids and Bases

Q. What are the concentrations of acetic acid (pKa = 4.76) and acetate in a buffer solution of 0.20M at pH 4.5? Enter your answer to two significant f...

Solved • Jun 29, 2018

Acids and Bases

Q. In our discussion of the acid-base properties of individual amino acids, we indicated that most amino acids will be electrically neutral over a ver...

Solved • Jun 8, 2018

Acids and Bases

Q. A substance having a pH of 13 would best be described as:  a. A weak acid b. A weak base c. Neutral d. A strong acid e. A strong base

Solved • Aug 1, 2017

Acids and Bases

Q. A substance having a pH of 8 would best be described as:  a. Neutral b. A weak base c. A weak acid d. A strong acid e. A strong base

Solved • Aug 1, 2017

Acids and Bases

Q. A substance having a pH of 7 would best be described as:  a. A weak acid b. A weak base c. Neutral d. A strong acid e. A strong base

Solved • Aug 1, 2017

Acids and Bases

Q. A substance having a pH of 6 would best be described as:  a. A weak acid b. Neutral c. A weak base d. A strong acid e. A strong base

Solved • Aug 1, 2017

Acids and Bases

Q. A substance having a pH of 2 would best be described as:  a. Neutral b. A weak acid c. A weak base d. A strong base e. A strong acid

Solved • Aug 1, 2017

Acids and Bases

Q. A base:  a. Has a value of 7 on the pH scale b. Is a chemical that adds hydrogen ions to a solution c. Is a chemical that absorbs hydrogen ions ...

Solved • Aug 1, 2017

Acids and Bases

Q. An acid:  a. Has a value above seven on the pH scale b. Is a chemical that takes hydrogen ions from a solution c. Has a value of seven on the pH...

Solved • Aug 1, 2017

Acids and Bases

Q. Homeostasis means:  a.  That a population changes over time b.  That conditions are held constant and do not change c.  That cells have enough w...

Solved • Aug 1, 2017