Pure iron metal can be produced by the reduction of iron(III) oxide with hydrogen gas. (a) Write the expression for the equilibrium constant (K c ) for the reversible reaction Fe 2 O 3 (s)+ 3H 2 ( g ) ⇌ 2Fe ( s ) + 3H 2 O ( g ) nH= 98 .7 kJ (b) What will happen to the concentration of each reactant and product at equilibrium if more Fe is added? (c) What will happen to the concentration of each reactant and product at equilibrium if H 2 O is removed? (d) What will happen to the concentration of each reactant and product at equilibrium if H 2 is added? (e) What will happen to the concentration of each reactant and product at equilibrium if the volume of the reaction vessel is decreased? (f) What will happen to the concentration of each reactant and product at equilibrium if the temperature of the system is increased?
Pure iron metal can be produced by the reduction of iron(III) oxide with hydrogen gas. (a) Write the expression for the equilibrium constant (K c ) for the reversible reaction Fe 2 O 3 (s)+ 3H 2 ( g ) ⇌ 2Fe ( s ) + 3H 2 O ( g ) nH= 98 .7 kJ (b) What will happen to the concentration of each reactant and product at equilibrium if more Fe is added? (c) What will happen to the concentration of each reactant and product at equilibrium if H 2 O is removed? (d) What will happen to the concentration of each reactant and product at equilibrium if H 2 is added? (e) What will happen to the concentration of each reactant and product at equilibrium if the volume of the reaction vessel is decreased? (f) What will happen to the concentration of each reactant and product at equilibrium if the temperature of the system is increased?
What is the order of increasing acidity for the following compounds? (least to most) [2 ONLY]
A.
COOH
COOH
COOH
COOH
6666
a.
IV, I, III, II
b.
III, II, I, IV
с.
II, III, I, IV
d. III, II, IV, I
slingoros
CH3
IV
woled noise biz
With this, please answer the following questions:
1.) draw the structure of the electrophilic intermediate in this reaction.
2.) what is the role of the AlCl3 in the reaction
3.) write the complete stepwise mechanism for this reaction. Show all electron flow with arrows and include all intermediate structures
Consider the data below to answer the following questions.
Cyanohydrins are important intermediates in the synthesis of a-hydroxycarboxylic acids from ketones
and aldehydes. The nitrile functional group can be hydrolyzed by aqueous acid to yield a carboxylic
acid. Nitriles can also be hydrolyzed to carboxylic acids using aqueous base. Unfortunately, when a
cyanohydrin is treated with aqueous base the original carbonyl compound is isolated.
HO
H
HCEN
H-3-
HO'
NaOH
HO
cyanohychin
a.
a nucleophilic substitution
b.
an electrophilic addition
C10
OH
CH-COOH
A. The reaction of an aldehyde with hydrogen cyanide is an example of
+ NaCN + H₂O
reaction.
H-
C.
an electrophilic substitution
d. a nucleophilic addition
B. Identify the electrophile in the reaction of benzaldehyde with hydrogen cyanide.
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