Which of the following transitions will result in the emission of the HIGHEST energy photon? Select one: O a. n=2 to n=5 O b. n=2 to n=1 O c. n=1 to n=4 O d. n=4 to n=2 49

Q: H 1.008 3 4 Li Be 6.94 9.012 12 Na Mg 22.990 24.305 11 19 K 39.098 37 20 21 Rb Sr 85.468 87.62 Ca Sc…

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Q: How many electron groups are present in BrO3 and what is its electron group geometry? Select one: O…

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Q: 2Zn(s) + O2(g) → 2ZnO(s) + 701kJ Solve for the standard enthalpy of formation of ZnO(s) at 298K?

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Q: In each row check off the boxes that apply to the highlighted reactant. reaction HCIO (aq) +…

A: Bronsted-Lowry theory :-  According to this , acid is a species which donates the proton base is a…

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Q: Question 58 Br dilute NaOH (7) Draw and name the major product(s) (7) for this reaction. (Hint: If…

A: We are given with two reactants and we have to predict the major product. It's a type of…

Q: Question 5 If you react 6.7g of iron oxide with 4.5g of aluminum, what is the theoretical yield of…

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Q: An unknown metal, M, makes a precipitate with sulfate having the chemical formula M SO. At…

A: Given : [M+] = 0.000338 M               [SO42-]=0=000169 M

Q: How many isomers (include geometric and optical) are there for an octahedral complex where the metal…

A: Given : the molecule is octahedral complex and four different monodentate ligand and one bidentate…

Q: The isotope 9038Sr3890Sr is one of the extremely hazardous species in the residues from nuclear…

A: Given that, Initial quantity of strontium, [No] = 0.500 g  Quantity of strontium after 10.0 years,…

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Q: Using the data in the table, calculate the rate constant of this reaction. k= A+B C+D Trial 1 2 3…

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Q: The molecules below are isomers of each other. Each isomer has sp2 and sp hybridized carbons. CH3 Ã…

A: In this question, we will see the number of sp3, sp2 and sp hybridized carbons in each isomers.  sp3…

Q: Identify and balance the half-equations in the following unbalanced equation in an acid solution:…

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Q: You are performing a transesterification (lik 4) and need to get your reagents ready. You are…

A: Concept based on the usage of significant figures and their importance in dealing with mathematical…

Q: Fill in the blanks with the correct words. In the molecular orbital theory, as the bond order…

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Q: Question 12 Choose the correct equilibrium constant expression corresponding to Kc for the…

A: Given that -  Following balanced chemical reaction -  CH4(g) + O2(g) <----> C(s) + 2H2O(g)…

Q: Draw the structure of the following compound: trans-2-bromocyclohexanol

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Q: Testosterone is an anabolic steroid. The structure of testosterone is shown below. What is the shape…

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Q: Vessel A containing an ideal gas at 300 K and 5.0x105 Pa pressure is connected with a vessel B by a…

A: According to Ideal gas equation number of moles is calculated as  :n=PVRTwhere , P= pressureV=…

Q: Chemistry Titration: 40.00 mL of an unknown NaOH solution with 0.0789M HCl. You need 26mL to reach…

A: HCl is a monoprotic strong acid.  NaOH is a monoacidic strong base. The balanced equation for the…

Q: When the following chemical equation is fully balanced including the correct coefficients for…

A: Balanced chemical equation : It is the chemical equation which has number of atoms of the given…

Q: At a certain temperature, 0.4211 mol of N, and 1.641 mol of H, are placed in a 2.50 L container.…

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Q: н Н CH3 CH3 H₂SO4 Н H H ОН Н Н Н Н

A: Whene alkene react with dilute H2SO4 alcohol is formed as major product.

Q: 7) (a) Assign the following terms to the EI mass spectrum below: base peak, molecul peak, and…

A: To assign the base peak, molecular ion peak and the fragment ion peak to the given mass spectrum.…

Q: How many sigma and pi bonds does Furfurylamine (C5H7NO) have?

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Q: When dispensing 50.0 mL of a volumetric solution using a 50 mL capacity burette, why should the…

A: Burets can be used to measure volumes upto 50ml with both precision and accuracy, because they are…

Q: NO3: Nitrate ion Incorrect

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Q: Consider the mechanism. Step 1: Step 2: Overall: A B+C C+D E - equilibrium slow A+DB+E Determine the…

A: Given - Step-1.          A <-> B + C (equilibrium) Step-2.           C + D ->  E (slow)…

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Q: Question 55d Complete these equations by predicting the major products (4) and (5) formed in each…

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Q: Equal volumes of 0.270 M aqueous solutions of nitrous acid ( HNO₂(aq)) and sodium acetate (NaCH3COO)…

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Q: Some soluble compounds are listed in the table below. Complete the table by filling in the name or…

A: Types of compound : 1) Ionic compound - The compounds which are formed by the combination of ions…

Q: 4. When 15.0 mL of a 2.84x10-4 M ammonium carbonate, (NH4)2CO3, solution is combined with 12.0 mL of…

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Q: In each row check off the boxes that apply to the highlighted reactant. reaction 3+ 3+ A1³+ (aq) + 6…

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A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: , Consider the unbalanced reaction below, which occurs in an acidic aqueous solution. MnO4 + 1 Ⓡ1₂ +…

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Q: A buffer solution is made that is 0.482 M in HNO2 and 0.482 M in KNO2. If Ka for HNO2 is 4.50 x…

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Q: The following initial rate data are for the reaction of nitrogen dioxide with carbon monoxide: NO₂ +…

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Q: How many kilocalories are required to produce 61.91 gg of aluminum?

A: Given - 2Al2O3(s) ---------> 4Al(s) + 3O2(g) Aluminium= 61.91 gram  Heat released in reaction =…

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A: Oxalic acid is a dibasic weak acid and NaOH is a strong base. But oxalic acid is stronger acid than…

Q: In aqueous solution the A1³+ ion forms a complex with six fluoride anions. Write the formation…

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Q: Good explain why having two resonance structures for a molecule stabilizes it.

A: When there is possibility of  more than one structure of given compound  can be drawn as a molecule…

Q: Which one of the following compounds has both ionic and covalent bonding? Select one: O a. CO2 O b.…

A: Ionic bonding :- Ionic bond is generally formed between two elements having large electronegativity…

Q: After dissolving NaOH in water, the final concentration of OH is 6.53x104. What is the p solution?…

A: Sodium hydroxide is strong base hence it dissociated fully in aqueous solution

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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.