When a particle of mass 9.1 x 10-28 g in certain 1-D box goes from the n = 5 level to the n=2 level, it emits a photon of frequency 6.0 x 10¹¹ s. Find the length of the box.

Q: element cobalt in battery technology? b)What are the physical properties of the element cobalt in…

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Q: 3.Determine if cis-trans isomerism is possible for the following compounds. If cis-trans is…

A: The given compounds are a)  2-butene b)  1-butene c)  2-pentene

Q: What volume in liters of 0.125 M H2SO4 is required to neutralize a solution prepared by dissolving…

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Q: Which is the product for the following reaction? Select one: a. cis-3-pentene O b. trans-2-penten c.…

A: Lindlar catalyst is used to reduce alkynes.

Q: 3.15 mol of NO2 gas at STP will occupy how much volume?

A: Here we have to determine the volume occupied at STP by 3 .15 moles of NO2 gas.

Q: A local fm station broadcasts at a frequency of 702 kHz. Calculate the energy of the frequency at…

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Q: b Predict the shape of the following molecule or ion: OSeCl4 square planar O T-shaped square…

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Q: 5. How would you proceed with the following synthesis? More than one step may be required. Include…

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Q: What are the appropriate synthetic equivalents to make the indicated bond of the following molecule?…

A: Organic reactions are those in which organic reactant react to form organic products.

Q: Example: BF3 Consider the highlighted bond. If the bond is polar, click on the more electronegative…

A: Relationship between polarity and electronegativity difference (∆EN) Polar character of the bond can…

Q: Write a scheme for each of the reactions below. Show the full structure of the starting material and…

A: Let us discuss the reactions one by one.

Q: Determine the molarity of a solution with a volume of 479. mL and 0.540 mol of solute dissolved.…

A: Molarity is a concentration term for a solution. The molarity of the given solution is defined as…

Q: Example: BF3 Consider the highlighted bond. If the bond is polar, click on the more electronegative…

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Q: + Ph O H b) 2,7-octanedione O NaOH,H₂0 A NaOH,H₂0 A ?? → ??

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Q: Write the short form of the followings:   ∙ Bismuth ion (Bi+3)  ∙ Arsenic (As)  ∙ Bromine (Br)

A: Writing for the short form of the Bismuth ion, Arsenic and bromine given below.

Q: (a) Consider the reaction between nitrous oxide and oxygen gas. The rate of appearance of the…

A: We have to predict the rate of disappearance of both reactants.

Q: Using the slaters rule, determine z for 3p electrons in P, S,Cl,and Ar. Is the calculated value of x…

A: Slater's Rule The basic idea underlying Slater's Rule is that an electron's actual charge is equal…

Q: Classify these salts according to Strength and Role in the Buffer system 1. NaOCl 2. NaNO3 3.…

A: 1. NaOCl is neutral salt and it cannot alter pH  2. NaNO3 is neutral salt and it can't alter the pH…

Q: What is/are the regent(s) for the following reaction? Problem viewing the image, Click Preview Here…

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Q: Identify the conjugate acid/base pairs in the following reaction. H3PO4 (aq) + CO32 (aq) → H₂PO4…

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Q: 2NH4O3---> 2N2 +O2+4H2O Does the oxygen atoms in the reactant acts an oxidizing agent or as a…

A: Oxidation means loss of electrons and reduction means gain of electrons.

Q: Mass of watch glass and evaporating dish:67.511 g   Mass of watch glass, evaporating dish, and Mg…

A: We can calculate mass of Mg,Cl, product by calculating mass before and after the reaction.

Q: Question 3 a) Penta-2,4-diene has 2 geometric isomers. Skeletally draw and name these isomers. b)…

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Q: Explain why the emission spectrum is sometimes referred to as an element’s fingerprint.  Determine…

A: •EMISSION SPECTRUM:-When electron comes from higher energy level to lower energy level it releases…

Q: H- H H C H -C- I— H -N CH3 CH3

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Q: a) Patients who have a zinc deficiency can take tablets consisting of a hydrated zinc sulfate,…

A: #(a): Mass of hydrated zinc sulfate tablet, ZnSO4.XH2O = 5.073 g  Mass of anhydrous sulfate,…

Q: A reaction A(aq) + B(aq) = C(aq) has a standard free-energy change of -3.87 kJ/mol at 25 °C. What…

A: A (aq) + B (aq) <===> C (aq)  ΔGo = -3.87 kJ/mol = -3780 J/mol T = 25 oC = 298.15 K [A] = 0.30…

Q: 1. Two generic amino acids and the location of the resulting peptide bond between them. 2. A generic…

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Q: Provide the major organic product for the following reaction. 1. PhLi (excess) Ion OH 2. H₂0*

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Q: What is the limiting reagent when 2 moles of Al are reacted with 2 moles of O(subscript #2)? About…

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Q: 4) Write structures for products. Pay attention to stereochemistry OH L OH TsC1 Pyridine TsCl =+…

A: Addition reaction is a chemical reaction involving the addition of two or more molecules to form a…

Q: Differentiate biopharmaceutical and pharmaceutical.

A: •BIOPHARMACEUTICAL:-Here (bio) means living organisms. -Drugs or pharmaceutical agent which derived…

Q: Titration of 25.0 mL of an unknown concentration H2SO4 solution requires 37.6 mL of 0.1375 M NaOH…

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Q: b Consider the following retrosynthesis problems. Provide a plausible retrosynthetic pathway for…

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Q: Provide a multi-step synthesis of the target structure on the right from the starting structure on…

A: In the synthesis we have used the grignard agent  which attacks in carbonyl centre.

Q: Suppose the reduction of nitric oxide proceeds by the following mechanism: step elementary reaction…

A: Nitrogen oxide or nitrogen monoxide, sometimes known as nitric oxide, is a colorless gas with the…

Q: A critical reaction in the production of energy to do work or drive chemical reactions in biological…

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Q: Why is it uncommon for diprotic and triprotic acids to completely dissociate in an aqueous solution?

A: An acid is one which donates a proton wheras a polyprotic acid donates protons. Polyprotic acid…

Q: Classify the following molecules (based on molecular behavior) whether they are: A. Arrhenius acid…

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Q: A patient needs an infusion with 7 mmol of monobasic potassium phosphate and 7 mml of dibasic…

A: Formula used: moles = massMolar mass   Unit conversion: 1 mmol = 1 x 10-3 mol 1 mg = 1 x 10-3 g

Q: How do I calculate the first table

A: The reaction mixtures contain different volumes of stock solutions of (NH4)2S2O8,  (NH4)2SO4,…

Q: Visited Smallest H2A 3A 4A 5A 6A 7A He Li Be BCN O F Ne Na Mg 38 48 58 68 78 88- 1B 2B Al Si P S C1…

A: Isoelectronic species : They have same number of electrons as their electronic configuration is…

Q: alkylation of benzene with 1-chlorobutane in the presence of AlCl3 gives both butylbenzene and…

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Q: When nickel sulfide is burned in oxygen its oxide and sulfur dioxide are formed:  2NiS(s) + 3O2 (g)…

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Q: Q1 (a) 3.2 g of sulphur was produced in a reaction between 6.0 L of hydrogen sulfide gas with excess…

A: 6.0 L of hydrogen sulfide gas reacts with excess amount of sulfur dioxide to produce 3.2 g of…

Q: 3. Examine the reaction mechanism found below: (slow) (fast) (fast) (fast) A + B₂ → AB₂ AB₂ + CAB₂C…

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Q: Arrange in order of increasing nonmetallic character. (Use the appropriate symbol to separate…

A: Non metallic character : It is the tendency of elements to gain electron and form negative ions…

Q: :0: Do A. B. C. D. ag the image. Click Preview Here HO HO. O: 1. Excess LIAIH4 2. H30* HO :O: :OH…

A: LiAlH4 when used in excess reduces the ketone along with the esters.

Q: Suppose the stockroom made a mistake and gave you a mixture of potassium chlorate and potassium…

A: Mass percent can be defined as the how many part can exist for every 100 part as a whole.

Q: Calculation of Calories per Mass of Food   Quantity Mass of can (g) 12.623 mass of can and water (g)…

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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.