Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Please help answer as much as you can I need it for studying
Transcribed Image Text:of besn ton ob
а. 5.32
d. RBNO2
(p6) T 6)HOC. KNO3
(1)OcH (ps) OCH
a. LİHCO3
b. NH4NO3
c. NazSO4
12. Given the following, what will be the approximate equilibrium pH of an aqueous solution of ammonium
acetate, NH4C2H3O2? The Kh of NHa is 1. 8 x 10-5, and the Ka of HC2H3O2 is 1.7 x 10³.
b. very acidic
HO bns OcH.d
HO bns HOODH OcH 5
HOODH bns 0CH.b
HOODH bns OcH.9
a. very basic
c. nearly neutral
13. Which of the following combinations is NOT suitable for making a buffer?
a. HCIO4 and NacIO4
b. NaH2PO4 and NazHPO4
Snoitsinn
Mof x SS.8.6
c. NH4CI and NH3
d. H3PO4 and NaH2PO4
5.8.b
M X 00.1.5
MOL x 00.1 .d
e. Na2CO3 and NaHCO3
14. What is the hydronium-ion concentration of a solution formed by titrating 400.0 mL of 0.21 M HNO3 with
600.0 mL of 0.10 M NaOH?
2()0.H +(ps) 0
a. 0.086 M
b. 6.7 x 10-13 M
c. 0.21 M6d
d. 0.024 M H bns bi e. 0.10 M H.6
ti 2i HO bns biɔ6 ns i .d
15. In the titration of a weak monoprotic acid with a strong base, the pH of the titration solution halfway to
the equivalence point will be
eed sieguinoo 2i zi 09sH bns biɔs ns i S0.b
2ed aisguino 2i zi OgH bns biɔs n6 i 09H.9
a. equal to the pKa of the weak acid
b. greater than 7.00
C. equal to 7.00
d. greater than the pKa of the weak acid
e. less than the pka of the weak acid
Snoituloz IH MII0.0 6 to HOq rt i tedW .A
A0.SI.d
12.A.6
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