Heated lithium atoms emit photons of light with an energy of . What is the calculated frequency and wavelength of one of these photons?

Q: a le tion of mbrane Part A What is the height difference between the two water surfaces at a…

A: As per the guidelines, I am allowed to answer one question at a time. Please re upload the rest.

Q: If 1 mole of water have 20.0 g of H2O, calculate the number of molecules. ( molar mass H=1, O=16)…

A: Given,  Mass of water = 20.0 g  Moles of water = 1 mole  Calculate the number of molecules of H2O ?…

Q: Carbon dioxide reacts with carbon to redness in the form of graphite. The equilibrium constant, Kc…

A: Carbon dioxide reacts with carbon to redness in the form of graphite.   CO 2 (g)+ C(graphite) =…

Q: Question What is the major organic product obtained for the following reaction? H₂/Pt ?

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Q: A few of noble gas (nonmetals) have some cationic chemistry that is more characteristic of a metal…

A: There are many noble gas which are reactive under certain conditions and form Cations like Xe[PtF6].

Q: 8.) Determine the potential that needs to be set in the system SnO3² + 3 H3O+ + 2 e = HSnO₂ + H₂O at…

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Q: 2. Name the following compounds: a. M b.

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Q: A correct skeletal outline for sulfurous acid (H₂SO3) shown below. Starting from this structure,…

A: Lewis structure can be defined as the representation of valence shell electrons of an atom.

Q: Use the balanced equation to answer the question follows. 2C2H6(g)+5O2(g) -----> 4CO(g)+6H2O(g) to…

A: Given, 2C2H6(g) + 5O2(g) -----> 4CO(g) + 6H2O moles of C2H6 react = 1.6 moles moles of O2 needed…

Q: In the laboratory you dilute 4.46 mL of a concentrated 6.00 M hydrochloric acid solution to a total…

A: Three questions related to dilution law are to be solved.

Q: Draw the displaced formula for CH3CH2COCH2I Also name of CH2CH2COCH2I

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Q: Tuture is 220 R. B- The pressure in a vessel containing methane and water at 70°C is 10 atm. At the…

A: Given :  Temperature = 70°C  Pressure = 10 atm  Vapour pressure of water at 70°C = 0.3117 bar…

Q: Use the balanced equation for the reaction of N2 and O2 to form NO to answer the following question:…

A: Given :  Number of moles of N2 = 2.8 mol Number of moles of NO = ?

Q: EXERCISE 1: Calculate the pH of a 0.50 M HA at 25°C. At 25°C, the acid dissociation constant (K₂) of…

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Q: 9) The major product for the following reaction is: 1. NaBH4 2. H20, H+ OH OH B O-Na+

A: Sodium borohydride, NaBH4 is a reducing agent and it can selectively reduce a carbonyl functional in…

Q: A few of noble gas (nonmetals) have some 2 cationic chemistry that is more characteristic of a metal…

A: Noble gases are they doesn't react generally.  Noble gases are Helium , Neon , Argon , Krypton,…

Q: Fully label the unlabelled Galvanic cell below using the following information: Electrodes:…

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Q: Chemistry Consider the following sketch of the interaction energy for two atoms as a function of…

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Q: 1. Write the hybridization of each carbon atom: mode 'N

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Q: Under certain conditions the rate of this reaction is zero order in hydrogen iodide with a rate…

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Q: For the equilibrium N2O4(g) 2NO2(g), at 298 K, Kp = 0.15. For this reaction system, it is found that…

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Q: Atoms which form covalent bonds not have any valence electrons. O True O False

A: The bonding in main-group elements (especially carbon, nitrogen, oxygen, and halogens,) can be…

Q: THNMR (ppm): 4.77 (1H, br s); 3.50 (1H, quintet); 1.55 (2H, quintet); 1.40 (1H, m); 1.11 (3H, d);…

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Q: For isobaric process, 1 mol of an ideal gas with Cp=5/2R the temperature changes from 125 K to 255 K…

A: Given :  Moles of ideal gas = 1  Initial temperature = 125 K  Final temperature = 255 K  Cp = 5/2 R…

Q: in g of hexane-2-ol formed from 11.0 cm3 of hex-1-ene if the yield is 31.0% Give your answer to 1…

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Q: QUESTION 20 In the following reaction, what is the correct coefficient for aluminum chloride? Al +…

A: To find coefficient of aluminium chloride we have to balance the equation

Q: Calculate the molality of (7.45 g) KCI, which dissolved in 100 g water. (molar mass: H-1, O=16, K=…

A: To calculate the molality of given mass of KCl.

Q: In the periodic table: Elements in the same group have the same valence charges. O False True

A: Valence electrons are those which are present in outermost shell.

Q: A certain reaction is second order in N₂ and second order in H₂. Use this information to complete…

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Q: Q12. Convert 876.9 in.³ to m³. (a) 0.01437 m³ (c) 5.351 x 107 m³ 3 (b) 22.27 m³ (d) 0.014 m³ me

A: Convert in3 to m3

Q: Problem 2. What are products formed from the below reaction? Draw the stereoisomers and name them.…

A: Alkene gives an electrophilic addition reaction with hydrogen halide to form an alkyl halide.

Q: What are the NaCl mass percent, ppm and ppb levels in a solution that is prepared by dissolving 0.30…

A: Here we have to determine mass percentage, ppm and ppb of 0.3mg NaCl dissolved in 1L water.

Q: The pH of a solution is (6.5x10^0). What is the [OH-]? Report your answer to 2 sig figs. Note: Your…

A: Given, pH of the solution = 6.5 × 100 = 6.5 Concentration of the OH- ion = [OH-] = ? The formula…

Q: AMMMMMMMME % of base peak 100 80 60 40 8 20 pon 91 2000 1600 v (cm¹) M** 170/172 1200 800 0.0 Mass…

A: Molecular Formula = C7H7Br

Q: Q2. Give a list ONLY for the following items: 1. The main bases on which crystallographic systems…

A: We have asked to give only list for the item given and the answer to this question is given in…

Q: few of noble gas (nonmetals) have ome cationic chemistry that is more haracteristic of a metal True…

A: The statement, "A few of noble gases(non metals) have some cationic chemistry that is more…

Q: The pH of a solution is (1.3x10^0). What is the [H]? Report your answer to 2 sig figs. Note: Your…

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Q: Please give me at least 10 facts about chemical reaction, so that I can make a poem about it. Thanks

A: A chemical reaction have following facts 1) In a chemical reaction defined as a process in which…

Q: What is the evidence that a chemical reaction took place?

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Q: Exothermic reactions are favored by high temperatures. True O False

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Q: Please show all the calculations. I have these information available: 32.00 mL of 1 butanol and…

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Q: Oxidation process can happen between metal and organic solvent. O True O False *

A: Here we have to predict the true and falseness of the following given statement.

Q: In the relation, W=JxQ, 1 calorie = 4.18400 joules false true

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

Q: Design a buffer that has a pH of 5.61 using one of the weak base/conjugate acid systems shown below.…

A: Here we have to determine the mass of suitable conjugate acid and base required to make 1L of buffer…

Q: The light can be passing through components with ionic bonds O False O True *

A: The components of the ionic bond are the atom which looses or gain electrons to form the anion or…

Q: Cuivan Coreeak base C₂H₂0 Nuo ₂. a 2. kb = 3.98 x 10-11 trund the PM of a Solution prefered by…

A: Here we are required to find the pH of weak base solution.

Q: What is meant by the term state function with respect to chemistry

A: The state function in the context of thermodynamics does not depend on the path taken.

Q: Give the reaction mechanism for the following: a. Aldol condensation b. Claisen condensation…

A: In an aldol condensation,  the enolate ion combines with a carbonyl molecule to produce a…

Q: Given the organic molecule, determine whether it is polar or nonpolar. Explain your answer.

A: The covalent bond is formed by the sharing of electrons between the atoms.

Q: 3. Solutions of aqueous CaCl, and aqueous CuSO, are mixed in a beaker. a) Write the balanced…

A: a) The balanced molecular equation:

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.