ne Part C Calculate the bond energy for forming all the bonds in a mole of water molecules, H2O. Express your answer to three significant figures and include the appropriate units. • View Available Hint(s) HA ? AHĦ,0 = Value Units

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Please answer both questions as they are calculated together but just a heads up they are different questions. Thank you for helping me

In chemical reactions, heat is converted into chemical energy (the
potential energy stored in chemical bonds) or vice versa. Bond
energy is the energy required to break one mole of the bond in the
gas phase. Since it takes energy to break a bond, bond energies
are always positive. Conversely, energy is released when bonds
are formed. Thus, the enthalpy change for a reaction can be
approximated from
Part C
Δ,ΗΣ(ΔΗ breaking) +Σ(ΔΗ forming)
Calculate the bond energy for forming all the bonds in a mole of water molecules, H2O.
where H represents bond energies for the breaking (positive
bond energy) or forming (negative bond energy) of a bond and
H, represents the overall enthalpy for the reaction.
Express your answer to three significant figures and include the appropriate units.
• View Available Hint(s)
Use the table to answer questions about bond energies.
Bond energy
µA
?
Bond
(kJ mol-1)
C-C
Value
Units
347
AHĦ,0 =
C=C
611
C-H
414
C-O
360
C=0
799
O-O
142
0=0
498
но
464
Calculate the bond energy for forming all the bonds in a mole of carbon dioxide, CO2.
Express your answer to four significant figures and include the appropriate units.
• View Available Hint(s)
H HÀ
?
ΔHco,.
Value
Units
Submit
Transcribed Image Text:In chemical reactions, heat is converted into chemical energy (the potential energy stored in chemical bonds) or vice versa. Bond energy is the energy required to break one mole of the bond in the gas phase. Since it takes energy to break a bond, bond energies are always positive. Conversely, energy is released when bonds are formed. Thus, the enthalpy change for a reaction can be approximated from Part C Δ,ΗΣ(ΔΗ breaking) +Σ(ΔΗ forming) Calculate the bond energy for forming all the bonds in a mole of water molecules, H2O. where H represents bond energies for the breaking (positive bond energy) or forming (negative bond energy) of a bond and H, represents the overall enthalpy for the reaction. Express your answer to three significant figures and include the appropriate units. • View Available Hint(s) Use the table to answer questions about bond energies. Bond energy µA ? Bond (kJ mol-1) C-C Value Units 347 AHĦ,0 = C=C 611 C-H 414 C-O 360 C=0 799 O-O 142 0=0 498 но 464 Calculate the bond energy for forming all the bonds in a mole of carbon dioxide, CO2. Express your answer to four significant figures and include the appropriate units. • View Available Hint(s) H HÀ ? ΔHco,. Value Units Submit
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