pH, Acids, and Buffers

Question 1

in an aqueous solution a proton combines with a water molecule to form a

Answer 1

hydronium ion

Question 2

Kw at 25C and 1atm is

Answer 2

1.0*10^-14

Question 3

acids are

Answer 3

proton donors

Question 4

bases are

Answer 4

proton acceptors

Question 5

strong acids will

Answer 5

completely dissociate in water

Question 6

lower pKa means

Answer 6

stronger acid

Question 7

acid dissociation constant

Answer 7

Ka

Question 8

commonly composed to a weak acid and its conjugate base, also help maintain a relatively constant hydrogen ion concentration

Answer 8

Buffer

Question 9

equilibrium shifts in the direction that relieves the stress

Answer 9

le chatelier’s principle

Question 10

establishes the relationship between pH and pKa for selecting a buffer

Answer 10

Henderson-hasselbalch equation

Question 11

buffers are most effective when they are composed of

Answer 11

equal parts weak acid and conjugate base

Question 12

best buffering occurs

Answer 12

1 pH unit above and below the pKa

Question 13

buffers adapted to solve specific physiological problems within the body

Answer 13

physiological buffers

Question 14

one of the most important buffers in the blood

Answer 14

bicarbonate buffer