Hydrazine, a component of rocket fuel, undergoes combustion to yield N 2 and H 2 O: N 2 H 4 ( l ) + O 2 ( g ) → N 2 ( g ) + H 2 O ( l ) (a) Draw an electron-dot structure for hydrazine, predict the geometry about each nitrogen atom, and tell the hybridization of each nitrogen. (b) Use the following information to set up a Hess's law cycle, and then calculate Δ H ° for the combustion reaction. You will need to use fractional coefficients for some equations. 2 N H 3 ( g ) + 3 N 2 ( g ) → 4 N 2 ( g ) + 3 H 2 O ( l ) Δ H ° = − 1011. 2 kJ N 2 O ( g ) + 3 H 2 ( g ) → N 2 H 4 ( l ) + H 2 O ( l ) Δ H ° = − 317. 2 kJ 4 N H 3 ( g ) + O 2 ( g ) → 2 N 2 H 4 ( l ) + 2 H 2 O ( l ) Δ H ° = − 286.0 kJ H 2 O ( l ) Δ H ° f = − 285.8 kJ/mol (c) How much heat is released on combustion of 100.0 g ofhydrazine?
Hydrazine, a component of rocket fuel, undergoes combustion to yield N 2 and H 2 O: N 2 H 4 ( l ) + O 2 ( g ) → N 2 ( g ) + H 2 O ( l ) (a) Draw an electron-dot structure for hydrazine, predict the geometry about each nitrogen atom, and tell the hybridization of each nitrogen. (b) Use the following information to set up a Hess's law cycle, and then calculate Δ H ° for the combustion reaction. You will need to use fractional coefficients for some equations. 2 N H 3 ( g ) + 3 N 2 ( g ) → 4 N 2 ( g ) + 3 H 2 O ( l ) Δ H ° = − 1011. 2 kJ N 2 O ( g ) + 3 H 2 ( g ) → N 2 H 4 ( l ) + H 2 O ( l ) Δ H ° = − 317. 2 kJ 4 N H 3 ( g ) + O 2 ( g ) → 2 N 2 H 4 ( l ) + 2 H 2 O ( l ) Δ H ° = − 286.0 kJ H 2 O ( l ) Δ H ° f = − 285.8 kJ/mol (c) How much heat is released on combustion of 100.0 g ofhydrazine?
Solution Summary: The author explains the Lewis dot structure, which shows the bonding between atoms present in a molecule.
Hydrazine, a component of rocket fuel, undergoes combustion to yield N2 and H2O:
N
2
H
4
(
l
)
+
O
2
(
g
)
→
N
2
(
g
)
+
H
2
O
(
l
)
(a) Draw an electron-dot structure for hydrazine, predict the geometry about each nitrogen atom, and tell the hybridization of each nitrogen. (b) Use the following information to set up a Hess's law cycle, and then calculate
Δ
H
°
for the combustion reaction. You will need to use fractional coefficients for some equations.
2
N
H
3
(
g
)
+
3
N
2
(
g
)
→
4
N
2
(
g
)
+
3
H
2
O
(
l
)
Δ
H
°
=
−
1011.
2 kJ
N
2
O
(
g
)
+
3
H
2
(
g
)
→
N
2
H
4
(
l
)
+
H
2
O
(
l
)
Δ
H
°
=
−
317.
2 kJ
4
N
H
3
(
g
)
+
O
2
(
g
)
→
2
N
2
H
4
(
l
)
+
2
H
2
O
(
l
)
Δ
H
°
=
−
286.0
kJ
H
2
O
(
l
)
Δ
H
°
f
=
−
285.8
kJ/mol
(c) How much heat is released on combustion of 100.0 g ofhydrazine?
Circle the compound below that you predict to be least soluble in water and explain yourselection. Please provide a throrough understanding.
itled
[ The America | 241932100
交量 x Hanil Eco So |
Question 5
ilearn.laccd.edu
0.5/0.5 pts
How many amino acids do you see in the following
structure?
H3N-CH-C-N-CH-C-N-CH-C-N-CH-C-0-
E-N-CH-E-N-CH-C-O-
H₁C-CH
| |
H CH2
H CH₂
H CH2-C-NH2
CH3
CHANH,
6
○ 5
3
4
H
N
5 pts
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