Understanding pH and Bases

The video tutorial explains how to calculate the pH of a 1 molar NaOH solution. It begins by identifying NaOH as a base due to its metal and hydroxide composition. The tutorial then describes the process of calculating pOH by taking the negative log of the hydroxide concentration, which is 1 in this case, resulting in a pOH of 0. Using the relationship pH + pOH = 14, the pH is determined to be 14, confirming that NaOH is a strong base.

What is the ionic charge of sodium in NaOH?

• 1+

• 1-

• 2+

• 2-

Why is NaOH considered a base?

• It is a non-metal compound.

• It is a metal oxide.

• It contains hydroxide ions.

• It contains hydrogen ions.

Which equation is used to calculate the pOH of a solution?

• pOH = -log[H+]

• pH = -log[H+]

• pOH = -log[OH-]

• pH = -log[OH-]

What is the pOH of a 1 M NaOH solution?

• 1

• 14

• 7

• 0

How do you calculate pH from pOH?

• pH = 14 + pOH

• pH = 7 - pOH

• pH = pOH + 7

• pH = 14 - pOH

What is the pH of a 1 M NaOH solution?

• 14

• 7

• 0

• 1

What is the relationship between pH and pOH in a solution?

• pH + pOH = 7

• pH + pOH = 14

• pH - pOH = 14

• pH - pOH = 7

Why is a pH of 14 expected for a strong base like NaOH?

• Because it is neutral.

• Because it is a strong base.

• Because it is a weak base.

• Because it is acidic.