Consider the thermochemical equation for the combustion of acetone (C 3 H 6 O), the main ingredient in nail polish remover: C 3 H 6 O ( l ) + 4 O 2 ( g ) → 3 CO 2 ( g ) + 3 H 2 O ( g ) Δ H rxn o = − 1790 kJ If a bottle of nail polish remover contains 177 mL of acetone, how much heat is released by its complete combustion? The density of acetone is 0.788 g/mL.
Consider the thermochemical equation for the combustion of acetone (C 3 H 6 O), the main ingredient in nail polish remover: C 3 H 6 O ( l ) + 4 O 2 ( g ) → 3 CO 2 ( g ) + 3 H 2 O ( g ) Δ H rxn o = − 1790 kJ If a bottle of nail polish remover contains 177 mL of acetone, how much heat is released by its complete combustion? The density of acetone is 0.788 g/mL.
Solution Summary: The author explains the formula used to determine the heat releases by complete combustion of acetone in the reaction.
Consider the thermochemical equation for the combustion of acetone (C3H6O), the main ingredient in nail polish remover:
C
3
H
6
O
(
l
)
+ 4 O
2
(
g
)
→
3 CO
2
(
g
)
+ 3 H
2
O
(
g
)
Δ
H
rxn
o
=
−
1790 kJ
If a bottle of nail polish remover contains 177 mL of acetone, how much heat is released by its complete combustion? The density of acetone is 0.788 g/mL.
Q6: Using acetic acid as the acid, write the balanced chemical equation for the protonation of
the two bases shown (on the -NH2). Include curved arrows to show the mechanism.
O₂N-
O₂N.
-NH2
-NH2
a) Which of the two Bronsted bases above is the stronger base? Why?
b) Identify the conjugate acids and conjugate bases for the reactants.
c) Identify the Lewis acids and bases in the reactions.
Q5: For the two reactions below:
a) Use curved electron-pushing arrows to show the mechanism for the reaction in the
forward direction. Redraw the compounds to explicitly illustrate all bonds that are broken
and all bonds that are formed.
b) Label Bronsted acids and bases in the left side of the reactions.
c) For reaction A, which anionic species is the weakest base? Which neutral compound is
the stronger acid? Is the forward or reverse reaction favored?
d) Label Lewis acids and bases, nucleophiles and electrophiles in the left side of the
reactions.
A.
용
CH3OH
я хон
CH3O
OH
B. HBr
CH3ONa
NaBr
CH3OH
potential energy
Br
b) Translate the Newman projection below to its wedge-and-dash drawing.
F
H.
OH
CH3
CI
c) Isopentane (2-methylbutane) is a compound containing a branched carbon chain. Draw
a Newman projection of six conformations about the C2-C3 bond of isopentane. On the
curve of potential energy versus angle of internal rotation for isopentane, label each
energy maximum and minimum with one of the conformations.
0°
。
F
A
B
D
C
angle of internal rotation
E
F
360° (=0°)
JDownl
Chapter 10 Solutions
Chemistry: Structure and Properties Plus MasteringChemistry with eText -- Access Card Package
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