Quiz | The Properties of Acids and Bases
A base is converted to its conjugate acid by …
removing a proton
removing an electron
adding a proton
adding an electron
A conjugate acid-base pair HA/A- differ only by the presence or absence of a proton
An acid donates a proton H+ to a base ⇒ a base is converted to its conjugate acid by adding a proton
How is a solution with a pH = 8?
pH > 7 ⇒ Basic solution
Which of the following statements is incorrect?
Kw = [H3O+][HO-]
Kw = 1.0 x 10-14 M 2 at 25°C
In an acidic solution, [H3O+] > [HO-]
In a neutral solution, [H3O+] = [HO-] = 1.0 x 10-14 M
In a neutral solution: [H3O+] = [HO-] = 1.0 x 10-7 M
What is the equation of the self-ionization of water?
2 H2O 2 H2 + O2
2 H2O H2O2 + H2
2 H2O H3O+ + HO-
2 H2O 4 H+ + 2 O2-
What is [H3O+] of a solution with a pOH = 11?
1.0 x 10-11 M
1.0 x 10-3 M
1.0 x 103 M
1.0 x 1011 M
pH + pOH = 14 ⇒ a solution with a pOH = 11 has a pH = 3
[H3O+] = 10-pH ⇒ [H3O+] = 1.0 x 10-3 M
How is called a substance that can act as either an acid or a base?
Amphoteric compound: compound that can act as both a Bronsted acid and base
Polyprotic acid: acid that donate more than one acidic proton