Acid-Base Equilibria and Buffer Solution

A Brønsted-Lowry acid is any species capable of:

• Accepting a proton

• Donating a proton

• Exchanging a proton

• All of the above

A Brønsted-Lowry base is any species capable of:

• Accepting a proton

• Donating a proton

• Exchanging a proton

• All of the above

All the given are properties of an acid, except:

• Taste sour

• pH < 7

• pH > 7

• Changes the color of litmus from blue to red

All the given are properties of a base, except:

• pH < 7

• pH > 7

• Tastes bitter

• Feels slippery

Depending on the circumstances, water can act as either an acid or base. The term for this characteristic of water is called:

• Amphiprotic

• Amphotoric

• Amphoteric

• Amphotic

What is a solution of weak acid and conjugate base or weak base and conjugate acid used to resist pH change with added solute?

• Baffer

• Biffer

• Buffer

• Beffer

The species created when a base accepts a proton.

• Acid

• Conjugate acid

• Base

• Conjugate base

The species left over after an acid donates a proton.

• Acid

• Conjugate acid

• Base

• Conjugate base

What happens to the equilibrium when some strong acid (more H+) is added to an equilibrium mixture of the weak acid and its conjugate base?

• The equilibrium is shifted to the left.

• The equilibrium is shifted to the right.

• The equilibrium is shifted upwards.

• The equilibrium is shifted downwards.

The equation that connects the measurable value of the pH of a solution with the theoretical value pKa.

• Arrhenius equation

• Acid equation

• Henderson–Hasselbalch equation

• Brønsted-Lowry equation