Which one of the following electromagnetic radiation cause molecular vibration when interact with matter? A. Radiowave radiation B. Microwave radiation C. x-Ray radiation D. Infrared (IR) radiation

Q: Chemistry 2. The pks of tye amino acid Arg are 1.82, 8.99, and 12.48. If Arg was used as a buffer,…

A: We have find out the ratio of conjugate base to weak acid in a pH of 7.00 Arg buffer.

Q: A aqueous cleaning solution containing only HCl as the solute, has a total mass of 4.50 kg, 630 g of…

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Q: 4000 100 IR Spectrum (liquid film) C-A ند 3000 43 80 60 M+ 86 20 40 80 13C NMR Spectrum (100 MHz,…

A: The data obtained from all the spectrums will be used to obtain the structure of the molecule.

Q: Show the dipole arrow for each of the following bonds: a) C-F b) Cl-S c) O-I

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Q: four common types of radioactive decay, differences between them and a detailed comparison,…

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Q: Pls help on both questions.

A: Questions 1. 1. False- As the system is in equilibrium, there is continuous conversation from vapour…

Q: 3. Given that 0.089 moles of benzaldehyde and 0.089 moles of 3'-chloroacetophenone were used to…

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Q: Which chemical change listed below represents a decrease in entropy?   Choices: a. N2(g) + 3H2(g) ®…

A: Given,  The listed chemical equations that represents a decrease in entropy is:

Q: Given the following reaction sequence: What are the reagents for reaction 5? A) NANH2 followed by…

A: Terminal alkynes having hydrogen which is directly attached to the sp carbon is acidic in nature…

Q: Question 24 On analysis, an equilibrium mixture for the reaction 2H₂S(g) 2H₂(g) + S₂(g) was found to…

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Q: Zefer to the equilibrium system: N₂(g) + 3H₂(g) + 2NH3 NH3 gas is added to the equilibrium system,…

A: Effect of concentration on equilibrium is determined by Le-Chateleir principle

Q: [References] Add the unshared (lone) electron pairs to the structure in the drawing window below. .…

A: Electronic configuration of Oxygen atom = 1s22s22p4  So, oxygen has six valence electrons.  If it…

Q: the iupac name and structure

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Q: Which of the following structures is the product from the self-condensation of two molecules of 1,3-…

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Q: Predict the major product or the necessary reagent or reactant to complete each of the Following…

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Q: ifies the change in internal energy when a molecule is added to a system at constant volume and…

A: Gibb's free energy for closed system can be capable for P-V system work and it uses Helmholtz…

Q: Which of the following equations represents enthalpy of formation of H₂O? 2H₂ (g) + O₂ (g) → 2H₂O…

A: For the determination of enthalpy of formation, the reaction which shows the formation of 1 mole of…

Q: Can this be solved again? It is not correct.

A: The common name of the given molecule = ?

Q: The following shows one of the enzymatic steps in Glycolysis. Use this figure to answer the…

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Q: X Incorrect. Modify the given structure of the starting material to draw the major product, without…

A: In the given problem we need to predict the major product from the given starting materials.

Q: Provide the correct systematic name for the compound shown here. O || CH3-CH2-C-O-CH3

A: The correct systematic name of the given compound is

Q: A person's blood alcohol (C₂H5OH) level can be determined by titrating a sample of blood plasma with…

A: The balanced equation is, 16 H+ (aq) + 2 Cr2O72- (aq) + C2H5OH (aq) → 4 Cr3+ (aq) + 2 CO2 (g) + 11…

Q: A gaseous solution contains 1.6 g oxygen, 16 g sulfur dioxide. and 5.1 g hydrogen sulfide. What is…

A: Given,  A gaseous solution contains 1.6 g oxygen(O2 ) , 16 g sulfur dioxide( SO2 ) and 5.1 g…

Q: 0.0285 kg of iron shot is added to a graduated cylinder containing 45.50 mL of water. The water…

A: Given -> Weight of iron = 0.0285 kg = 0.0285 × 1000 gm  Weight of Iron = w = 28.5 gm Final volume…

Q: What is the hybridization of the central atom in a molecule with a trigonal-planar molecular…

A: Hybridisation            Geometry      sp                             linear      sp2…

Q: 8) How much of the S-enantiomer is present in 10 g of a mixture which has an enantiomeric excess of…

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Q: What are the products for the following ozonolysis reaction? 1.0₂ 2. DMS III A. I and II B. II and…

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Q: When 11.0 mol of NO reacts, the actual yield of N 2 is 8.64 mol. What is the percent yield?  4NH 3(…

A: We have to predict the percentage yield.

Q: [References] Acyl transfer (nucleophilic substitution at carbonyl) reactions proceed in two stages…

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Q: Which of the following set of conditions will accomplish the following reaction? A. Na, NH3(1)-33°C.…

A: Alkyne react with various reducing agents and can undergo partial reduction as well as fully…

Q: Can you help me find the enthalpy, entropy and gibbs free energy value for this equation C4H7CI(1)…

A: ΔHrxn = [ΣniΔHf (Product)] - [ΣniΔHf (Reactant)] Where, ΔHrxn = Enthalpy of Reaction ni and ΔHf is…

Q: An astronomer is studying the emission spectrum of a star in the Andromeda galaxy. What can the…

A: We will have various information,like temperature, density, element

Q: 4000 100 80 60 40 IR Spectrum (liquid film) % of base peak C-A 3000 43 10 40 13C NMR Spectrum (100…

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Q: 3. Calculate each of the following quantities: (1) Grams of solute in 185.8 mL of 0.267 M calcium…

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Q: Question 25 At 400°C, 2.5 moles NOCI was placed in a 2.5 L reaction vessel. After equilibrium was…

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Q: The following reactions happen simultaneously when HCl is added to a mixture of Mg(OH)2 and MgCO3:…

A: Mass of mixture = 25 gm  % of MgCO3 = 35.2 %  % of Mg(OH)2 = 64.8 %  Density of HCl solution = 1.2…

Q: The following concentrations are found in mixtures of ions in equilibrium with slightly soluble…

A: If AmBn is slightly soluble solid then Ksp can be written as - AmBn. -------> mAn+ + nBm- Ksp =…

Q: The molar solubility of PbBr₂ is 2.17 x 10-3 M at a certain temperature. Calculate Ksp for PbBr2.…

A: The given multiple choice do not contain the correct answer.

Q: 16. 25.0 mL of 1.074 M HCI is added to 1.13 g sample of eggshell. Calcium carbonate in the egg…

A: We have to predict the percentage of calcium carbonate in the egg shell.

Q: HC SOCH2CH, bakers' yeast aq. sucrose H C HC ОН ОН 93% 7% 0 `OCH,CH, SOCH,CH,

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Q: 1.Draw a sketch showing 12 to 14 atoms in the backbone of each of the following polymers. Omit all…

A: Polymers are macromolecules of small monomer units containing large Molecular mass.  (a) Nylon has…

Q: Question 9 These conditions indicate that chemical reaction is at equilibrium except A the products…

A: Equilibrium is the state in a reversible reaction at which rate of forward reaction becomes equal to…

Q: Provide the correct systematic name for the compound shown here.

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Q: Need help figuring out the calculations for the stock solution please. Required Reagents 50 mM Tris…

A: We have a 1 M stock solution from which we need to prepare 50 mM solution of 400 mL.

Q: Which of the following is the correct step of protonation of tran-2-butene? A B C D

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Q: Pls help on both questions.

A: From the percentage of individual elements we can determine the empirical formula of compound.

Q: The energy E of the electron in a hydrogen atom can be calculated from the Bohr formula: E-- In this…

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Q: 2NO (g) + O₂ (g) → 2 NO₂ (g) Through experimentation, she finds that changing the concentration of…

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Q: 5. Abstraction of a hydrogen atom from 3-ethylpentane can yield three different radicals, depending…

A: Given -> 3-ethylpentane

Q: How many distinct monochlorination products are possible when the alkane below undergoes free…

A: in the monochlorination product, one H is substituted by chlorine and one Cl is attached to the…

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.