Sulfuric acid (H 2 SO 4 ) accounts for as much as 80 percent of the acid in acid rain. Its first ionization is complete, producing H + and the hydrogen sulfate ion: H 2 SO 4 ( a q ) ⇄ H + ( a q )+HSO 4 − ( a q ) Its second ionization, which produces additional H + and the sulfate ion, has an ionization constant ( K a2 ) of 1.3 × 10 −2 . HSO 4 − ( a q ) ⇄ H + ( a q )+SO 4 2 − ( a q ) Calculate the concentration of all species m a raindrop in which the sulfuric acid concentration is 4 00 × 10 −5 M . Assume that sulfuric acid is the only acid present.
Sulfuric acid (H 2 SO 4 ) accounts for as much as 80 percent of the acid in acid rain. Its first ionization is complete, producing H + and the hydrogen sulfate ion: H 2 SO 4 ( a q ) ⇄ H + ( a q )+HSO 4 − ( a q ) Its second ionization, which produces additional H + and the sulfate ion, has an ionization constant ( K a2 ) of 1.3 × 10 −2 . HSO 4 − ( a q ) ⇄ H + ( a q )+SO 4 2 − ( a q ) Calculate the concentration of all species m a raindrop in which the sulfuric acid concentration is 4 00 × 10 −5 M . Assume that sulfuric acid is the only acid present.
Solution Summary: The author explains that sulphuric acid is the only acid present in rain drop. The concentration of hydrogen ion is measured using pH scale and the acidity of aqueous
Sulfuric acid (H2SO4) accounts for as much as 80 percent of the acid in acid rain. Its first ionization is complete, producing H+ and the hydrogen sulfate ion:
H
2
SO
4
(
a
q
)
⇄
H
+
(
a
q
)+HSO
4
−
(
a
q
)
Its second ionization, which produces additional H+ and the sulfate ion, has an ionization constant (Ka2) of 1.3 × 10−2.
HSO
4
−
(
a
q
)
⇄
H
+
(
a
q
)+SO
4
2
−
(
a
q
)
Calculate the concentration of all species m a raindrop in which the sulfuric acid concentration is 4 00 × 10−5M. Assume that sulfuric acid is the only acid present.
How many signals do you expect in the H NMR spectrum for this molecule?
Br Br
Write the answer below.
Also, in each of the drawing areas below is a copy of the molecule, with Hs shown. In each copy, one of the H atoms is colored red. Highlight in red all other H
atoms that would contribute to the same signal as the H already highlighted red
Note for advanced students: In this question, any multiplet is counted as one signal.
1
Number of signals in the 'H NMR spectrum.
For the molecule in the top drawing area, highlight in red any other H atoms that will contribute to
the same signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box at right.
Check
For the molecule in the bottom drawing area, highlight in red any other H atoms that will contribute
to the same signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box at right.
O
✓
No additional Hs to color in top
molecule
ง
No additional Hs to color in bottom…
in the kinetics experiment, what were the values calculated? Select all that apply.a) equilibrium constantb) pHc) order of reactiond) rate contstant
Chapter 16 Solutions
GEN COMBO CHEMISTRY: ATOMS FIRST; ALEKS 360 2S ACCESS CARD CHEMISTRY:ATOMS FIRST
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