Nitric oxide and bromine at initial partial pressures of 98.4 and 41.3 torr, respectively, were allowed to react at 300. K. At equilibrium the total pressure was 110.5 torr. The reaction is 2 NO ( g ) + Br 2 ( g ) ⇌ 2 NOBr ( g ) a . Calculate the value of K p . b . What would be the partial pressures of all species if NO and Br 2 , both at an initial partial pressure of 0.30 atm, were allowed to come to equilibrium at this temperature?
Nitric oxide and bromine at initial partial pressures of 98.4 and 41.3 torr, respectively, were allowed to react at 300. K. At equilibrium the total pressure was 110.5 torr. The reaction is 2 NO ( g ) + Br 2 ( g ) ⇌ 2 NOBr ( g ) a . Calculate the value of K p . b . What would be the partial pressures of all species if NO and Br 2 , both at an initial partial pressure of 0.30 atm, were allowed to come to equilibrium at this temperature?
Solution Summary: The author explains the value of the equilibrium constant and the law of mass action for the gaseous species.
Nitric oxide and bromine at initial partial pressures of 98.4 and 41.3 torr, respectively, were allowed to react at 300. K. At equilibrium the total pressure was 110.5 torr. The reaction is
2
NO
(
g
)
+
Br
2
(
g
)
⇌
2
NOBr
(
g
)
a. Calculate the value of Kp.
b. What would be the partial pressures of all species if NO and Br2, both at an initial partial pressure of 0.30 atm, were allowed to come to equilibrium at this temperature?
Problem 3-42
Consider 2-methylbutane (isopentane). Sighting along the C2-C3 bond:
(a) Draw a Newman projection of the most stable
conformation.
(b) Draw a Newman projection of the least stable
conformation.
Problem 3-44
Construct a qualitative potential-energy diagram for rotation about the C-C bond of 1,2-dibromoethane.
Which conformation would you expect to be most stable? Label the anti and gauche conformations of 1,2-
dibromoethane.
Problem 3-45
Which conformation of 1,2-dibromoethane (Problem 3-44) would you expect to have the largest dipole
moment? The observed dipole moment of 1,2-dibromoethane is µ = 1.0 D. What does this tell you about the
actual conformation of the molecule?
Gas Law Studies
1. Mass of zinc
Determination of
0.899
2) Moles of zinc
0.01361 mol
3.) Moles of hydrogen
00?
←
I was told to calculate this
number from mole of zinc.
350m
So does that mean it will be 0.01361
mol
too?
4 Volume of water collected (mL)
5) VL of water collected (Liters) 0.350 L
6) Temp of water collected (°C)
7) Temp of water collected (°K)
8) Atmospheric pressure (mm)
9) Vapor pressure of water (mm)
10) Corrected pressure of hydrogen
20%
29°C
764.0mm Hg
(mm)
17.5mm
11) Corrected pressure of hydrogen (atm)
12) Experimentally calculated value of 19
13. Literature value of R
14) % Error
15) Suggest reasons for the % error (#14)
No wedge or dashes. Do proper structure. Provide steps and explanation.
Chapter 12 Solutions
Bundle: Chemistry: An Atoms First Approach, 2nd, Loose-Leaf + OWLv2, 4 terms (24 months) Printed Access Card
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell