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Acids

100

• Proton Donors create conjugate bases

• Proton Receivers create conjugate acids

• These are __________ theory

Bronsted–Lowry acid–base theory

200

Why is the pH of your body regulated so precisely?

To allow that body part to function properly.

300

Calculate the pH of a solution that is composed of 90.0 mL of 0.345 M sodium hydroxide, NaOH, and

50.0 mL of 0.123 M lactic acid, HC3H5O3. (Ka of lactic acid = 1.38x10-4)

13.25

Bases

100

What is the base disassociation expression? What is an example of it (write the base disassociation expression in terms of a strong base)

• B → HB+ + OH- 

200

Calculate the pH of 0.00200 M solution of perchloric acid, HClO4.

2.7

300

Why does drinking water prevent Alkalosis?

- water dilutes blood, lowering the OH concentration in blood

Buffer

100

What makes up a buffer solution? Provide an example of species involved.

Half of an acid and half of a conjugate base.

200

Example of a natural buffer and its use?

Carbonic acid prevents acidification of blood

300

What is a real world example of buffer solutions that were not described in this presentation? (NOT blood, organs in the body, or limestone)

Answers may vary