Basic Acid-Base Chemistry Quiz

If the hydronium ion concentration is 2.5 x 10^-4 M, what is the approximate pH of the solution?

• 2.5

• 3.6

• 4.5

• 5.0

What is the pH of a solution if the pOH is 4.5?

• 7.0

• 10.5

• 4.5

• 9.5

At 25°C, a solution with a pH of 9.5 is considered:

• Neutral

• Acidic

• Amphoteric

• Basic

How do you calculate the hydroxide ion concentration if the pOH is 3.8?

• 10^3.8

• 10^-3.8

• 3.8^10

• 3.8^-10

What is the hydroxide ion concentration if the pOH is 3.8?

• 3.6 x 10^-4 M

• 2.5 x 10^-4 M

• 1.58 x 10^-4 M

• 4.5 x 10^-4 M

If the Ka of an acid is 1.8 x 10^-5, what is the pKa?

• 6.745

• 3.745

• 5.745

• 4.745

Given a pKa of 3.7, what is the pKb of the corresponding base?

• 12.3

• 13.3

• 11.3

• 10.3

What is the relationship between pH and pOH at 25°C?

• pH + pOH = 7

• pH + pOH = 14

• pH + pOH = 10

• pH + pOH = 0

Which formula is used to calculate the hydronium ion concentration from pH?

• pH^10

• pH^-10

• 10^-pH

• 10^pH

What is the product of the hydronium and hydroxide ion concentrations at 25°C?

• 1 x 10^-4

• 1 x 10^-14

• 1 x 10^-7

• 1 x 10^-10