1. What is the energy in Cal unit of one photon of microwave radiation with a wavelength of 550nm? A. 8.64 x1014 B. 1.5x1016 C. 3.62x1015 D. 8.64 x10-29

Q: What is the density of a sample of SO3 gas at 298 K and 2.0 atm? density of SO3 = [?] g/L Hint: What…

A: The density of a gas can be calculated by using the ideal gas equation. The ideal gas equation is…

Q: The rate of a certain reaction is given by the following rate law: rate k[N₂][H₂] Use this…

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Q: CD+E 6th attempt Part 1 The initial composition of the reaction mixture is [C] = [D] = [E] =…

A: Given reaction :-  C < ------> D + E

Q: What is the oxidizing agent in this reaction? Zn(s)+2HCI(aq)->ZnCI2(aq)+H2(g)

A: Oxidizing agent: oxidizing agent can be define as the substance which can cause the oxidation of…

Q: How many moles of NO₂ would be required to produce 5.81 moles of HNO₃ in the presence of excess…

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Q: Decide whether these proposed Lewis structures are reasonable. proposed Lewis structure Is the…

A: we have to check the number of valence electrons, octet rule and mark the correct option

Q: Consider the element Ag (p=47, n=61) with a nuclear mass of 1.79124 x 10-22 g. (Given: mass of…

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Q: what electrochemical reaction uses in Primary Battery - carbon battery and why the electrochemical…

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Q: For each of the following pairs of complexes , identify which one you would predict to have the…

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Q: Question 5 What is the maximum number of electrons in an atom that can have the following quantum…

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Q: Based on the number of mature trees and acres of grass in your lawn, determine how many grams of CO₂…

A: #Q.1: Number of matured trees available = 11 Pounds of CO2 a matured tree consume in a year = 148…

Q: 100 90 80 70 60 50 40 30 20 10 0 4000 3000 2000 1500 wave number, cm-1 WY 1000 500

A: The given spectra is for IR spectroscopy. IR spectroscopy useful for identifying functional groups.…

Q: Draw the predicted d -orbital splitting diagrams for each of the following complexes a . HS [Cr(H 2…

A: In the presence of ligand, the degeneracy of d-orbitals disturbed. It will be splitted into two eg…

Q: Chemistry 3. Draw the diazonuim product of the reaction of 8-aminoquinoline (below) with HCI/NaNO₂…

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Q: The IR spectrum below represents which of the following compounds? mr O a. O b. O d. شه myt

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Q: A. 1 19. In the reaction, Fe2O3 (1) + CO (g) → Fe (1) + CO2 (g), how many electrons does Fe gain? A.…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Q#3 Iodine-123, used in the treatment of thyroid, brain, and prostate cancer, has a half-life of…

A: Given :  Half life(t1/2) = 13.2 hr  Given time (t) = 26.4 hr  Mass of sample = 64 mg

Q: D Question 13 Which of the following atoms is diamagnetic in its ground-state? Ca OC As Fe

A: The correct answer is given below

Q: Q2-What is the number of grams of Cas(PO4)2 and grams of KCI can be produced by mixing 5g of CaCl;…

A: We are authorised to solve only one question at a time. Please post rest of the questions…

Q: Using any alkene and any other reagents, how would you prepare the following compounds? a. CH₂CHCH₂…

A: We are authorised to solve only first three subparts of a question. Please post rest of the subparts…

Q: The easiest fusion reaction to initiate is 2H + 3H → He + ¹n Calculate the energy released per…

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Q: The boiling point of pure ethanol (C₂H₂OH, MM = 46.07 g/mol) is 78.4 °C. A solution is made using…

A: we have to calculate boiling point of the glucose-ethanol solution

Q: What is the ∆G° for the redox reaction below? 2MnO4- + 6Br- + 8H+ → 2MnO2 + 3Br2 + 4H2O    E°cell =…

A: Given-> 2MnO4- + 6Br- + 8H+ -------> 2MnO2 + 3Br2 + 4H2O E°cell = 0.59 V

Q: A2. Complete the following by drawing the structure of the main organic product(s) AB-AG for each…

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Q: Which one of the following sets of quantum numbers is not possible? O 3,0, 1, +1/2 O 3, 0, 0, +1/2 O…

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Q: The easiest fusion reaction to initiate is 2H + 3H → He + ¹ n Calculate the energy released per…

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Q: What is the final temperature (in °C) of 850.1 g of water (specific heat = 4.184 J/g･°C) at 24.20°C…

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Q: Question 1 Kirchhoff's Current Law, also known as the junction rule, states that: The answer cannot…

A: Question 1 Kirchhoff's Current Law, also known as the junction rule.

Q: The normal composition for this foliar spray is 128 grams of calcium nitrate at 94.64v liters of…

A: Here we have to determine the change in vapour pressure of solution when 128 g Ca(NO3)2 is added to…

Q: Predict the sign, + − or 0, of ASº for each of the following reactions a) Oxygen gas and nitrogen…

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Q: The pH of a cyanoacetic acid/sodium cyanoacetate buffer in which the concentration of the weak acid…

A: It is given that, Molarity of weak acid, cyanoacetic acid = 0.140 M Molarity of its conjugate base,…

Q: The oxidation of tin tetrahydride produces O Sn O O O SnO SnO2 SnH2

A: The oxidation of tin tetrahydride produces

Q: What is the electron configuration of Zr? Periodic table     [Xe] 5s1 4d3     [Kr] 5s1 4d3…

A: Zr is the atomic symbol of Zirconium.  Zirconium is an d block element.

Q: what electrochemical reaction uses in Disk battery - Lithium Battery and why the electrochemical…

A: In a disc-shaped Lithium-ion battery, the chemicals used are CoO2, Li+, and LiC6 polymer.

Q: 6. Who is the proponent of the Gibbs free energy? A. William Friedrich B. Guglielmo Marconi C.…

A: Note: As you asked multiple questions in a single image. According to guidelines here is a solution…

Q: 1.Calculate the pH and the of a buffer made from 0.28 M HNO₂ and 0.23 M NO₂. (The Ka for HNO2 is 4.6…

A: Given, Ka(HNO2) = 4.6×10-4

Q: - 2 Al(s) + Fe2O3(s) 2 Fe(s) + Al2O3(s) AH=-848.0 kJ The mass of aluminium oxide produced when -2544…

A: Aluminum metal reacts with iron (III) oxide to form aluminum oxide and iron metal. The equation for…

Q: Water, when subjected to electrolysis, produces bubbles of hydrogen and oxygen gas. Select one:…

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Q: You used a stock 0.200M solution of CuSO4 for constructing a calibration curve. Assuming the density…

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Q: Is the entropy constant during the polytropic process?

A: A polytropic process is the process where the pressure and the volume of the system are related by…

Q: Determine the mass, in grams, of 0.465 moles of S (1 mol of S has a mass of 32.07 g).

A: Given that, Moles of S= 0.465 moles MM of S= 32.07 g mol-1 then,

Q: 9. Propose a sequence of reagents for the following transformation [Chapter 11, section 11.2] using…

A: addition of hydrogen halide to alkene gives two products, one of them is major and another is minor.…

Q: 2) Identify the type of organic reactions given below (Addition, Elimination, Substitution or Cross…

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Q: Use the sample experimental data to calculate the mass of residue (BaCl2)  Mass of pan 15.110 g…

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Q: A student was required to prepare 250.0 mL of a cyanoacetic acid/sodium cyanoacetate buffer in which…

A: Given, Volume of buffer = 250.0 mL Concentration of weak acid = 0.067 M Concentration of conjugate…

Q: A cylindrical metal carries a current of 10 A. What will be its diameter, in mm, if the minimum…

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Q: S + 6 HNO3 --> H₂SO4 + 6 NO2 + 2H₂O In the above equation how many grams of water can be made when 2…

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Q: Consider the element Ag (p=47, n=61) with a nuclear mass of 1.79124 x 10-22 g. (Given: mass of…

A: given  Ag (p=47, n=61) with a nuclear mass of 1.79124 x 10-22 g. mass of proton = 1.67262 x 10-24 g;…

Q: The structure molecules can be confirmed by using X-ray diffraction analysis, which are explained by…

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Q: 3. Give condensed structural and 2-D structural formulae for the molecules represented by the…

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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.