pH (Acids/Bases)

A base is a substance

• That releases OH- ions when dissolved in water

• That releases H+ ions when dissolved in water

• Does not release any ions when dissolved in water

• None of the above

Which of these is a property of acidic solutions?

• they taste sour

• they feel slippery

• they are in many cleaning products

• they taste bitter

The pH scale measures:

• The concentration of hydroxide ions in a solution.

• The concentration of hydrogen ions in a solution.

• The temperature of a solution.

• The viscosity of a solution.

Many cleaning solutions are bases. Which of the following is a property of most bases?

• feels slippery
• white color
• can only be liquid
• tastes sour

A(n) ______ is a substance with a pH less than 7

• Acid
• Alkaline
• Base
• Buffer

Which has a pH above 7?

• Acid
• Base

The pH scale is a range from:

• 1-7
• 0-14
• 1-14
• 1-20

A solution has a pH of 7.0.  What would happen to the pH if H ions were added?

• pH would go up
• pH would go down
• pH would stay the same
• None of these

From which point to which point in the pH scale is Base

• 7.1- 14

• 0- 6.9

• 6.2- 9.1

• 12- 14

A(n) _______ is a substance with a pH greater than 7.

• Base
• Acid
• Buffer
• Water