Calculate the frequency of a light with a wavelength of 488 nm. Give your answer to 3 sig figs. Really large or small numbers should be reported in scientific notation. Type your answer...

Q: What is the formal charge on the circled atom, if one exists? 0 N O + O no formal charge

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Q: How would you distinguish between these two compounds in the C NMR? State clearly what you would see…

A: We know identical atoms don't couple with each other and they appear as a  single line in the…

Q: A laser pulse at 635 nm contains 7.09 mJ of energy. How many photons are in the laser pulse? Use 3…

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Q: ОН CH3 PBr3

A: When PBr3 reacts with alcohol then it replaces OH group by Br atom . Following reverse…

Q: Is the following set of quantum numbers possible for an electron in an atom? n = 3, l = 1, ml = 2,…

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Q: rewrite the following statement using a number in scientific notation. The diameter of a certain…

A: Atoms consist of a nucleus which is made up of neutrons and protons.Electrons revolve around nucleus…

Q: What mass of oxygen is needed for the complete combustion of 2.20×10-3 g of methane Express your…

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Q: ercentage by mass of a solution? A. The mass of the evaporating dish and sample O B. The mass of the…

A: The mass per cent formula is described as the grams of solute dissolved per grams of solution,…

Q: put true or false, then correct the error:- 1. Mn can be extracted by pyro-metallurgical process. 2.…

A: 1. True  2. False 3. False 4. True 5. True

Q: A sample of helium gas has a volume of 7.06 L at 45 oC and 2.12 bar. What would be the volume of…

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Q: (a) Devise a cell for evaluating the solubility product of PbSO4 (PbSO, Pb²+SO). Calculate the…

A: According to the question we have a reaction of cell, PbSO4 + 2e- ⇔Pb + SO42- The temperature is…

Q: Indium-111 has an effective half-life of 2.5 days. If 15.0 mCi dose is given, how much ¹¹¹|n will be…

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Q: What is the work when a gas expands from 3 L to 12.6 L against an external pressure of 0.888 atm?

A: work = Pext × (Vfinal - Vinitial) where Pext = External pressure Vfinal = final volume Vinitial =…

Q: 8. Convert 2.1 quartz to ft³ 9. Convert 2.1 gal to m 10. An orifice meter is used to measure the…

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Q: 1.67 g H₂ is allowed to react with 9.63 g N₂, producing 2.31 g NH3. Part A What is the theoretical…

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Q: Provide the solubility product constants of the Cations in Group IIA and Group III

A: Group II A ion Sulfide Ksp at 25 oC Cu2+ CuS 8.7 ×10-36 Cd2+ CdS 7.8 ×10-27 Bi3+ Bi2S3 6.8…

Q: 2 3 4 6 7 8 100 QUESTION 4 How much sample should be loaded into the capillary tube for a Melting…

A: 4) We have to answer how  much sample should be loaded into the capillary tube for a Melting Range…

Q: О 1 H EtO₂C 2 CO₂Et HO A (10 mol%) сH2Cl2, 0°с EtO₂C- EtO₂C ОН H 3 82% yield, 93% ее

A: Given in following question a reaction draw a machenism for given in following question reaction

Q: 1. How many moles of Ne are there in a sample that contains 6.57x1022 neon atoms? moles 2. How many…

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any…

Q: A structure with a more stable conjugate base will be more acidic. Ha is more acidic than Hb. Choose…

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Q: In the drawing area below, create a cyclic hemiacetal with a 6-membered ring, I ethoxy group, 3…

A: We know that for a cyclic hemiacetal  A carbon will contain alkyl group wich is a part of cycle, a…

Q: A sample of hydrogen contains 35.3 grams. 1. How many moles of H atoms are there in the sample? 2.…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: a-d-allopyranose + excess acetic anhydride and NaOAc

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Q: Part A When ethanol (C₂H₂O(aq)) is consumed it reacts with oxygen gas (O₂) in the body to produce…

A: Combustion reactions are those reactions in which a substance reacts with oxygen gas and release…

Q: Draw the displayed formulae of the following molecules: a hexan-3-one b 2,3-dimethylnonanal c…

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Q: 3. Draw the corresponding required structure in each item below: Он H3C a. b. CH3 Он Give the…

A: There are different methods to show the organic compounds structure. Let us discuss some of them.

Q: How many grams are there in 4.50 moles of Ba (NO₂)2 ? Barium 1x137.33 Nitrogen IX 14.01 Oxygen 4X…

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Q: Are the arrows shown to create the resonance structures valid? [9+0] O yes O no

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Q: Write the formula for sodium hyponitrite

A: The chemical formula of a molecule gives the representation of all the atoms present in the…

Q: 12) How many grams are there in 1.00 x 1024 molecules of BC13? B1X10.81 (1 3 X 35,45 10.81 g/m²!…

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Q: 13.56 g. 3.1 mm 2.50 cm K 6.45 cm

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Q: What mass of carbon dioxide is produced from the complete combustion of 2.20x10-3 g of methane?…

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Q: Use the References to access important values if needed for this question. When 33.22 is added to…

A: Significant digits  in a number are required for representing quantity of that number.. Significant…

Q: hot-air balloon initially holds 4.5 x 104 moles of gas in 1.1 x 106 L of volume at constant pressure…

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Q: Find the point groups of the following shapes, interpreting (a) as a square and (b)-(p) as…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: 1. For each pair of compounds, predict which compound has the higher boiling point. Support your…

A: Boiling point of alkyl halides: As the number of carbons increases, the boiling point increases due…

Q: Explain the followin Bragg method

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Q: n some RNA molecules, a cytosine base is first methylated at N3 and then oxidatively deaminated in a…

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Q: Draw the additional resonance structures (2 additional structures) for the following molecules and…

A: Major resonance contributor should have octet fulfilled of all atoms except H atom and negative…

Q: Explanation H Which site is most basic? Highlight this site. H Check Which H is most acidic?…

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Q: Dehydration synthesis vs hydrolysis (which adds H2O to the complex and which process removes H2O)

A: Dehydration synthesis and hydrolysis are given. Both dehydration synthesis and hydrolysis are…

Q: 2. Given the structure of molecule A below, a. Draw as many possible resonance structures of the…

A: In the resonance structure drawing, movement of electron occurs only but not atom movement occurs.…

Q: Question: Please help. Identify the separation technique represented by the following (10) images…

A: Separation  techniques are used for  Separation of various components in mixture .

Q: 9. If the following reaction is employed, what is the volume of carbon dioxide produced at STP…

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Q: 5. Solvolysis of bromomethylcyclopentane in methanol gives a complex product mixture of the…

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Q: Determine the number of 6p electrons in Po. Express your answer as an integer.

A: From the electronic configuration  we can determine the no of electron in the orbital.

Q: Elemental S reacts with O₂ to form SO3 according to the reaction 2S+302-2SO3 as depicted here. How…

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Q: MISSED THIS? Watch IWE 2.8: Read Section 2.6. You can click on the Review link to access the section…

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Q: Design a synthesis for each of the following target compounds, starting from the starting…

A: To get the target molecule we need the following reactions 1. Oxidation of alcohol to carbonyl…

Q: How much H3PO4 and NaOH are needed to prepare a buffer solution containing 0.200 mole HPO42- and…

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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.