Chemistry: An Atoms-Focused Approach
14th Edition
ISBN: 9780393912340
Author: Thomas R. Gilbert, Rein V. Kirss, Natalie Foster
Publisher: W. W. Norton & Company
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Explain why a sample of pure water at 40 °C is neutral even though [H3O+] = 1.7 × 10−7 M. Kw is 2.9 × 10−14 at 40 °C.
Consider the following data on some weak acids and weak bases:
acid
base
Ка
K,
name
formula
name
formula
-4
6.8 x 10
ethylamine C,H,NH, 6.4× 10
-4
hydrofluoric acid
HF
HCH,CO2 1.8 ×x 10
CH;N |1.7× 10
-5
acetic acid
pyridine
1.7 x 10
Use this data to rank the following solutions in order of increasing pH. In other words, select a 'l' next to the solution that will
have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on.
solution
pH
0.1 М KI
choose one
0.1 M NaF
choose one
0.1 М C2HsNHзBr
choose one
0.1 M C5H5NHCI
choose one
Complete the balanced molecular reaction for the following weak base with a strong acid:
NaClO2(aq) +H2SO4(aq) ->
Chapter 15 Solutions
Chemistry: An Atoms-Focused Approach
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