#04 bond strengthThe following data give the energy needed to break the indicated bond. In the case of multiple bonds the energy applies to breaking the multiple bond completely:Bond Bond Dissociation EnergykJ/molBond Bond Dissociation EnergykJ/molC-H 413 C=O 745*C-C 347 C=C 614C-N 305 C≡C 839C-O 358 O=O 495O-H 463 N≡N 946 *C=O in carbon dioxide 804 kJ/molCalculate the energy required to dissociate all atoms, that is break all chemical bonds, in 1.00 mole of methanoic acid, HCOOH .Question 2Select one:a.- 1979 kJb.1979 kJc.489 kJd.- 489 kJe.2724 kJ
Question
#04 bond strengthThe following data give the energy needed to break the indicated bond. In the case of multiple bonds the energy applies to breaking the multiple bond completely:Bond Bond Dissociation EnergykJ/molBond Bond Dissociation EnergykJ/molC-H 413 C=O 745*C-C 347 C=C 614C-N 305 C≡C 839C-O 358 O=O 495O-H 463 N≡N 946 *C=O in carbon dioxide 804 kJ/molCalculate the energy required to dissociate all atoms, that is break all chemical bonds, in 1.00 mole of methanoic acid, HCOOH .Question 2Select one:a.- 1979 kJb.1979 kJc.489 kJd.- 489 kJe.2724 kJ
Solution
To solve this problem, we first need to understand the structure of methanoic acid (HCOOH). It consists of the following bonds:
- 2 C-H bonds
- 1 C=O bond
- 1 C-O bond
- 1 O-H bond
Next, we look up the bond dissociation energies given in the problem:
- C-H bond energy is 413 kJ/mol
- C=O bond energy is 745 kJ/mol
- C-O bond energy is 358 kJ/mol
- O-H bond energy is 463 kJ/mol
We then multiply the number of each bond by the bond energy and add them all together to get the total energy required to break all the bonds in 1 mole of methanoic acid:
- 2 C-H bonds * 413 kJ/mol = 826 kJ
- 1 C=O bond * 745 kJ/mol = 745 kJ
- 1 C-O bond * 358 kJ/mol = 358 kJ
- 1 O-H bond * 463 kJ/mol = 463 kJ
Adding these together gives:
826 kJ + 745 kJ + 358 kJ + 463 kJ = 2392 kJ
However, none of the options match this result. There might be a mistake in the problem or the provided options.
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