Consider the following reactions at some temperature: 2 NOCl ( g ) ⇌ 2 NO ( g ) + Cl 2 ( g ) K = 1.6 × 10 − 5 2 NO ( g ) ⇌ N 2 ( g ) + O 2 ( g ) K = 1 × 10 31 For each reaction, assume some quantities of the reactants were placed in separate containers and allowed to come to equilibrium. Describe the relative amounts of reactants and products that would be present at equilibrium. At equilibrium, which is faster, the forward or reverse reaction in each case?
Consider the following reactions at some temperature: 2 NOCl ( g ) ⇌ 2 NO ( g ) + Cl 2 ( g ) K = 1.6 × 10 − 5 2 NO ( g ) ⇌ N 2 ( g ) + O 2 ( g ) K = 1 × 10 31 For each reaction, assume some quantities of the reactants were placed in separate containers and allowed to come to equilibrium. Describe the relative amounts of reactants and products that would be present at equilibrium. At equilibrium, which is faster, the forward or reverse reaction in each case?
Solution Summary: The author explains that the relative amount of the products and the reactants present at equilibrium in the stated reaction is to be determined.
Consider the following reactions at some temperature:
2
NOCl
(
g
)
⇌
2
NO
(
g
)
+
Cl
2
(
g
)
K
=
1.6
×
10
−
5
2
NO
(
g
)
⇌
N
2
(
g
)
+
O
2
(
g
)
K
=
1
×
10
31
For each reaction, assume some quantities of the reactants were placed in separate containers and allowed to come to equilibrium. Describe the relative amounts of reactants and products that would be present at equilibrium. At equilibrium, which is faster, the forward or reverse reaction in each case?
4.
a) Give a suitable rationale for the following cyclization, stating the type of process involved
(e.g. 9-endo-dig), clearly showing the mechanistic details at each step.
H
CO₂Me
1) NaOMe
2) H3O®
CO₂Me
2. Platinum and other group 10 metals often act as solid phase hydrogenation catalysts for
unsaturated hydrocarbons such as propylene, CH3CHCH2. In order for the reaction to be
catalyzed the propylene molecules must first adsorb onto the surface. In order to completely
cover the surface of a piece of platinum that has an area of 1.50 cm² with propylene, a total
of 3.45 x 10¹7 molecules are needed. Determine the mass of the propylene molecules that
have been absorbed onto the platinum surface.
Chem 141, Dr. Haefner
2. (a) Many main group oxides form acidic solutions when added to water. For example solid
tetraphosphorous decaoxide reacts with water to produce phosphoric acid. Write a balanced
chemical equation for this reaction.
(b) Calcium phosphate reacts with silicon dioxide and carbon graphite at elevated temperatures
to produce white phosphorous (P4) as a gas along with calcium silicate (Silcate ion is SiO3²-)
and carbon monoxide. Write a balanced chemical equation for this reaction.
Chapter 13 Solutions
OWLv2 with MindTap Reader, 4 terms (24 months) Printed Access Card for Zumdahl/Zumdahl's Chemistry, 9th
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