The energy gap between the ground state and the first excited state of a molecule is 4.81 × 10-19 J. What wavelength of light will this molecule absorb? O 413. nm O 332. nm 278. nm 480. nm 389. nm

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Q: 16.4) Glive on IUPAC or common home for each compound.. 2 b. C. e- O jaa ho i 1 до но d. Hon ethyl…

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Q: When 188. g of benzamide (C,H, NO) are dissolved in 700. g of a certain mystery liquid X, the…

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Q: 14) The conjugate acid of H₂AsO4 is A) H₂ASO4 B) HASO42- C) AsO4³- D) HASO4 E) H3 AsO 4

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Q: increasing wave number in IR : и O= 11 -C-NH₂-C-H O=C -C-OH. O=C4 C CI

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Q: The frequency of the middle D note on a piano is 293.66 Hz. What is the wavelength of this note in…

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Q: Q20.1.1 Identify the oxidation state of the atoms in the following compounds: a. PCl3 b. Co- c. H₂S

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Q: NH₂ primary amine secondary amine tertiary amine most basic? most nucleophilic?

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Q: 10) The solubility of magnesium carbonate, MgCO3, in pure water is 2.6 x 10-4 moles per liter.…

A: Solubility  of MgCO3 = 2.6×10-4 mol/L Ksp = ?

Q: A chemistry student weighs out 0.370 g of ascorbic acid (H₂CHO), a diprotic acid, into a 250. mL…

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Q: Consider the battery. Cd(s) | CdCl₂ (aq) || Cl¯(aq) | Cl₂ (1) | C(s) Write the reduction…

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Q: 44. A voltaic cell is constructed using the reaction: Fe(s) + Cu²+ (aq) Fe²+ (aq) + Cu(s) Calculate…

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Q: “Fill in the correct IUPAC name of the following structures. Lowercase with proper punctuation marks…

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Q: Complete and balance the following half-reaction in acidic solution. Be sure to include the proper…

A: Complete and balance the following half-reaction in acidic solution-

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Q: 15. When a solute is able to go spontaneously into solution: (A) both the enthalpy (AHsoln) and the…

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Q: Consider these two entries from a fictional table of standard reduction potentials. X³ + + 3e¯ X(s)…

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Q: 4. A gas contracts to half its initial volume while releasing heat to the surroundings. What can be…

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Q: For the following reaction, 23.0 grams of iron are allowed to react with 5.18 grams of oxygen gas.…

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Q: 11. On a clear day at sea level, with a temperature of 25 °C, the partial pressure of N₂ in air is…

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Q: Consider an atom traveling at 1% ofthe speed of light. The de Broglie wavelength is found to be 3.31…

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Q: Maleic acid is a weak diprotic acid with : pka1 = 1.87 pka2 = 6.07 A 10.00 mL solution of 0.1000 M…

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Q: 4 B Question 14 Predict the correct products Ma ether 2. CHỊCH,CH CHO 3. HO d

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Q: HBr peroxide

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Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.