pH or pOH

Acids have a ______ pH and a _________ pOH

• low, high

• high, low

• An acid will not have a pOH

The pH scale is a range from:

• 1-7
• 0-14
• 1-5
• 1-20

If the pH of a solution is 7 the solution is said to be

• Acidic
• Basic
• Neutral
• Tasty

Which of these solutions is an acid?

• Dish Soap: pH of 12

• Tomato Soup: pH of 4

• Baking Soda: pH of 9

• Drain Cleaner: pH of 14

Ammonia has a pOH of 2. Ammonia is __________.

• an acid

• a base

• an element

• a metal

An acid

• is a substance that releases H+ ions when dissolved in water

• is a substance that does not release any ions when dissolved in water

• is a substance that releases OH- when dissolved in water

• releases an equal amount of OH- and H+ ions when dissolved in water

The picture below shows the relative concentrations of H+ and OH- in a solution. Is the solution an acid or a base?

• acid

• base

When dissolved in water, bases produce:

• acids
• salts
• hydrogen ions
• hydroxide ions

A  pH and a pOH will add up to:

• 0
• 7
• 14
• 1.0 x 10^-14

Water has a neutral because

• it has more H+ ions than OH-

• it has more OH- ions than H+

• it does not produce any ions

• it has an equal amount of H+ and OH- in solution