Instant hot packs contain a solid and a pouch of water. When the pack is squeezed, the pouch breaks and the solid dissolves, increasing the temperature because of the exothermic reaction. The following reaction is used to make a hot pack: L i C I ( s ) → H 2 O L i + ( a q ) + C I − ( a q ) Δ H = − 36. 9 kJ What is the final temperature in a squeezed hot pack that contains 25.0 g of LiCI dissolved in 125 mL of water?Assume a specific heat of 4.18 J/ (g.°C) for the solution, an initial temperature of 25.0 °C, and no heat transfer between the hot pack and the environment.
Instant hot packs contain a solid and a pouch of water. When the pack is squeezed, the pouch breaks and the solid dissolves, increasing the temperature because of the exothermic reaction. The following reaction is used to make a hot pack: L i C I ( s ) → H 2 O L i + ( a q ) + C I − ( a q ) Δ H = − 36. 9 kJ What is the final temperature in a squeezed hot pack that contains 25.0 g of LiCI dissolved in 125 mL of water?Assume a specific heat of 4.18 J/ (g.°C) for the solution, an initial temperature of 25.0 °C, and no heat transfer between the hot pack and the environment.
Solution Summary: The author explains how the final temperature of a squeezed hot pack containing 25.0 g of LiCl in 125 mL of water needs to be determined.
Instant hot packs contain a solid and a pouch of water. When the pack is squeezed, the pouch breaks and the solid dissolves, increasing the temperature because of the exothermic reaction. The following reaction is used to make a hot pack:
L
i
C
I
(
s
)
→
H
2
O
L
i
+
(
a
q
)
+
C
I
−
(
a
q
)
Δ
H
=
−
36.
9 kJ
What is the final temperature in a squeezed hot pack that contains 25.0 g of LiCI dissolved in 125 mL of water?Assume a specific heat of 4.18 J/ (g.°C) for the solution, an initial temperature of 25.0 °C, and no heat transfer between the hot pack and the environment.
in the scope of the SCH4U course! please show all steps as im still learning how to format my answers in the format given, thank you!
help me solve this HW
Molecules of the form AH2 can exist in two potential geometries: linear or bent. Construct molecular orbital diagrams for linear and bent CH2. Identify the relevant point group, include all of the appropriate symmetry labels and pictures, and fill in the electrons. Which geometry would you predict to be more stable, and why? (Please draw out the diagram and explain)
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