1. Circde the letters of each of the pairs that can make a buffer. a. NaH,PO, and KPO. b. KaH;P:O, and LiH,P,O, C HCH,O, and NaOH d. NH, and NH,CH,O;

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Chapter16: Acid-base Equilibria
Section: Chapter Questions
Problem 16.144QP
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1. CGrcle the letters of each of the pairs that can make a buffer.
a. NaH;PO, and KPO.
b. KaH;P;O, and LiH,P;O,
C. HCH,O2 and NaOH
d. NH, and NH.C;H,O;
2. From the following list of compounds, select those that could along with its conjugate pair, which could
make a buffer with a pH of 6.87.
K, - 1.8 x 10
K, - 1.8 x 10
K, = 3.0 x 10
K. = 5.4 x 10
K. = 7.4 x 104
K, = 4.5 x 107
HCO,H
CH,CO,H
HOCI
H;CO,
HCH,O
K,= 7.9 x 10
Ks = 1.8 x 10
NH,
K = 4.3 x 1010
K = 2.6 x 10
CHSNH2
CoH,N
Transcribed Image Text:1. CGrcle the letters of each of the pairs that can make a buffer. a. NaH;PO, and KPO. b. KaH;P;O, and LiH,P;O, C. HCH,O2 and NaOH d. NH, and NH.C;H,O; 2. From the following list of compounds, select those that could along with its conjugate pair, which could make a buffer with a pH of 6.87. K, - 1.8 x 10 K, - 1.8 x 10 K, = 3.0 x 10 K. = 5.4 x 10 K. = 7.4 x 104 K, = 4.5 x 107 HCO,H CH,CO,H HOCI H;CO, HCH,O K,= 7.9 x 10 Ks = 1.8 x 10 NH, K = 4.3 x 1010 K = 2.6 x 10 CHSNH2 CoH,N
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