Consider the equilibrium 4 NO 2 ( g ) + 6 H 2 O ( g ) ⇌ 4 NH 3 ( g ) + 7 O 2 ( g ) (a) What is the expression for the equilibrium constant ( K c ) of the reaction? (b) How must the concentration of NH 3 change to reach equilibrium if the reaction quotient is less than the equilibrium constant? (c) If the reaction were at equilibrium, how would a decrease in pressure (from an increase in the volume of the reaction vessel) affect the pressure of NO 2 ? (d) If the change in the pressure of NO 2 is 28 torr as a mixture 0f the four gases reaches equilibrium, how much will the pressure of O 2 change?
Consider the equilibrium 4 NO 2 ( g ) + 6 H 2 O ( g ) ⇌ 4 NH 3 ( g ) + 7 O 2 ( g ) (a) What is the expression for the equilibrium constant ( K c ) of the reaction? (b) How must the concentration of NH 3 change to reach equilibrium if the reaction quotient is less than the equilibrium constant? (c) If the reaction were at equilibrium, how would a decrease in pressure (from an increase in the volume of the reaction vessel) affect the pressure of NO 2 ? (d) If the change in the pressure of NO 2 is 28 torr as a mixture 0f the four gases reaches equilibrium, how much will the pressure of O 2 change?
4
NO
2
(
g
)
+
6
H
2
O
(
g
)
⇌
4
NH
3
(
g
)
+
7
O
2
(
g
)
(a) What is the expression for the equilibrium constant (Kc) of the reaction?
(b) How must the concentration of NH3 change to reach equilibrium if the reaction quotient is less than the equilibrium constant?
(c) If the reaction were at equilibrium, how would a decrease in pressure (from an increase in the volume of the reaction vessel) affect the pressure of NO2?
(d) If the change in the pressure of NO2 is 28 torr as a mixture 0f the four gases reaches equilibrium, how much will the pressure of O2 change?
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
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