Download Chapters E-18 review - Bakersfield College

ChemistryBll
Chapters E-18 review
1. A sodium hydroxide solution has a pH of 10.40. What is thé [H+] and [OH'l?
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2. If 54 mL of an aqueous solution of FbPC^ requires 34 mL of 0.83 M NaOH to reach thé
end point, what is thé molarity of thé tbPC^ solution?
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3. The pKa of lactic acid is 3.86. What is thé pH of a buffer in which thé concentration of
lactic acid is 0.2 M and concentration of sodium lactate is 2.0 M?
4. Show thé acid, base, conjugate acid and conjugale base in following reactions:
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-J
a) H2SO4 + Mg(OH)2 -» MgSO4 + 2H2O
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5
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b) HNO3 + NH3 ->
A
+ NO3
Ô _
5. Naming thé following acids:
a) HF
b) HNO2
c) H3PO4
d) H2COs
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6. How we can prépare a buffer? Describe thé buffers in our body. How thèse buffers react?
Dr. Behrang Madani
Chemistry B11
Bakersfield Collège
7. Found thé IUPAC name for thèse compounds?
C,
fH,
a) CH3-CH-CH2-C-CH2-CH3
2. -
CH3
OH
T^NO 2
Cl
Br
I
c) CH2=CH-CH-CH-CH3
<
Cl
OH
OH
I
I
d) CH3-CH2-CH-CH2-CH-CH2-CH3
e) CH3-CH2-O-CH2-CH2-CH3
CH2-CH3
f) CH3-CH2 -CH-CH2SH
NH2
Br
g)
OH
CH3
h) CH3-CH2-CH2-CH2-CH2-N-CH3
NH2 OH O
I
I II
i) CH3-C-CH2-CH-C-CH2-CH3
6j
NH2
O
II
j) CH3-CH-CH-CH
3
NO2
OH
Cl O
k) CH3-CH-CH2-CH-COH
2- - O\ • ^ - \. Behrang Madani
8. Draw thé structural formula for thèse compounds?
e
a) 3-methylpentanal
b) 4-bromo-2-pentanone
c) 4-chlorobenzaldehyde
c-l
OH
d) 3-nitro-2-hexanol
e) 3-hydroxylbutanoic acid
f) Methyl butyl ether
g) 2,4,5-trichloroaniline
cl
1
h) 2,3-Dimethyl-l-butene
i) N-Propylaniline
.
N/^
j) 3,3-dibromo-l-hexanethiol
9. Write five constitutional isomers for C?Hi4 (Heptene)?
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10. How can we convert thé first compound into thé second compound? Détermine thé type of
chemical reaction, catalyst (if it is necessary) and other necessary conditions:
a) Benzène to Chlorobenzene
b) Ethene to Ethane
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Dr. Behrang Madani
Chemistry B 1 1
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r-*»
Bakersfield Collège
c) Pentanal to pentanoic acid
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d) 2-butanone to 2-butanol
e) Propanol to propene
1 1 . Name four physical properties for aldéhydes?
12. Arrange thé following compounds according to increasing of boiling point:
a) CH3-CH2-OH,
CH2=CH2,
b) CH3-O-CH2-CH3,
c) CH3-CO-CH3,
CH3-CH2-NH2
CH3-CH2-CH2-SH,
CH3-CH2-CH3
CH3-CH2-CH2-OH,
13. Which compound is more soluble in water?
a) CH3-CH2-SH
CH3-CH2-COH •/
b) CH3-(CH2)6-CH2-OH
CH3-CH2-OH S
c) CH3-CH2-O-CH3
CH3-CH2-COOH S
d) CH3-CH2-CH2-OH/
CH3-CH2-CH2-NH2
14. Which compound bas cis and trans isomer? If it bas, draw its cis and trans isomer. Which
one bas higher boiling point (cis or trans)?
a)2-methyl-2-butene
b) 2-chloro-2-butene
V— /
e
15. Write thé molecular formula for thèse compounds:
Dr. Behrang Madani
ChemistryBll
Bakersfield Collège
a) An alkane with 15 carbon atoms
b) An alkyne with 10 acrbon atoms
H
c) An alkene with 8 carbon atoms
16. Give an example for hydrogénation and halogenation of alkenes (write chemical
équation). Précise thé type of catalyst if it is necessary.
- CH cl
C-l
17. Why benzène is less reactive than alkenes?
18. Write thé oxidation reaction for thèse alcohols:
u
a) CH3-CH-CH2-CH3
o
K
i -C-
b) CH3-CH2-CH2OH
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c) CH3-CH2-C-CH2-CH3
c £» « »v
CH3
19. Complète thèse chemical reactions:
a) CH3-CH2-CH2-NH2
b)CH3-CH2-SH + NaOH
c)
-OH +NaOH
d)
•COOH +NH 3
Dr. Behrang Madani
^ S A/a
Chemistry Bll
-f
Bakersfield Collège
20. Explain why each of thé following is an incorrect IUPAC name. Write thé correct IUPAC
name for thé compound.
a) 2-ethylbutane
b) 4,5-dimethylhexane
c) 4-nitroaminobenzene
^
^ ^ iv/,'cr» <**^ ^»
d) 3-propyl-l-pentene
2 1 . The unsaturated fatty acids are liquid at room température but thé saturated fatty acids are
solid. Why?
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ftc«^*
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22. How soap clean?
23. Write thé chemical reaction with thé products:
a) Dehydration - ethanol + heat with an acid catalyst produces?
Ll m C0 Jf
«2.0
b) Fischer esterification - ethanoic acid + Ethanol + acid catalyst produces?
C-H3>- £ - o H
-<•
c) Halogenation - 2-butene + bromine produces?
d) Combustion - propane + oxygen —» _
(please balance thé équation)
Dr. Behrang Madani
Chemistry B11
+
Bakersfield Collège