Chapter 2 - pH

On the pH scale, an acid is a compound that produces a solution with a pH (a)   7.

On the pH scale, a base is a compound that produces a solution with a pH (a)   7.

What pH does a neutral substance have?

• 5

• 7

• 6

• 8

Which of the following is the weakest acid?

• bananas (pH 5)

• tomatoes (pH 4)

• cheese (pH 6)

• orange juice (pH 3)

What is pH a measure of?

• Density

• Mass

• Hydrogen Ion Concentraion

• Polarity

Which of the following pH values represents the greatest concentration of -OH ions?

• 9

• 3

• 6

• 1

Which of the following pH values represents the greatest concentration of H+ ions?

• 9

• 3

• 6

• 1

The pH scale is a range from:

• 1-7

• 0-14

• 1-14

• 1-20

The purpose of a buffer is to ___________. (more than 1 answer)

• Neutralize an acid or base and maintain pH.

• speed up a reaction

• maintain homeostasis

• lead to bond formation

Tags

NGSS.HS-LS1-3

the bicarbonate/carbonic acid buffer system

H2CO3 <--> H+ + HCO3-

regulates.....

• glucose levels

• blood pH levels

• respiration rate

• lipid levels

Tags

NGSS.HS-LS1-3