10 The Ka of acetic acid is 1.7 *10-5 The pH of a buffer prepared by combining 50.0 mL of 1.00 M potassium acetate and 50.0 mL of 1.00 M acetic acid is __________.
Oops!
Show
Check
Okay!
Check
monster
Reset all scores!
Oops!
fairy
Take points!
5
10
15
20
25
rocket
Go to first place!
Okay!
baam
Lose 10 points!
Oops!
15
Which equation shows the correct relationship between the Ka and Kb values for a diprotic species?
Oops!
Show
Check
Okay!
Check
15
What is the principal form of benzoic acid at pH = 6.00?
Oops!
Show
Check
Okay!
Check
15
Which of the following is FALSE for an aqueous solution of the weak acid H3A?
Oops!
Show
Check
Okay!
Check
thief
Give points!
5
10
15
20
25
rocket
Go to first place!
Okay!
rocket
Go to first place!
Okay!
lifesaver
Give 15 points!
Oops!
15
What is the principal form of benzoic acid at pH = 3.00?
Oops!
Show
Check
Okay!
Check
15
(T or F) For most diprotic species, the acidic (H2A) and basic (A2−) forms can be treated as monoprotic species when calculating the pH of a solution.
Oops!
Show
Check
Okay!
Check
eraser
Reset score!
Oops!
magnet
Take 20 points!
Okay!
rocket
Go to first place!
Okay!
banana
Go to last place!
Oops!
15
Which one of the following pairs cannot be mixed together to form a buffer solution?
Oops!
Show
Check
Okay!
Check
15
(T or F)A buffer made from a diprotic acid is treated in the same way as a buffer made from a monoprotic acid.
Oops!
Show
Check
Okay!
Check
15
(T or F) The following reaction is an example a hydrolysis reaction: L− + H2O<====>HL + OH−
Oops!
Show
Check
Okay!
Check
banana
Go to last place!
Oops!
gift
Win 25 points!
Okay!
shark
Other team loses 20 points!
Okay!
thief
Give points!
5
10
15
20
25
15
What is the pH of a 0.100 M maleic acid (pK1 = 1.89, pK2 = 6.23) solution?