What is the frequency in Hz, of a photon with an energy of 3.7 x 10-18J?   Group of answer choices 5.6 x 1015 2.5 x 10-51 1.8 x 10-16 5.4 x 10-8

Q: How many protons and neutrons are there in each of the following atoms? an atom of nickel-64

A: Here, we have to calculate the number of protons and neutrons in an atom of nickel-64.

Q: Describ the physical properties of Co2 and,also draw a phase diagram of Co2

A: Phase diagram is basically a graph of physical state of any pure substance existing at different…

Q: Octane (CH) has a vapor pressure of 14.3 torr and a density of 0.703 g/mL. Benzene (CH) has a vapor…

A: Given: Vapor pressure of octane is 14.3 torr. Density of octane is 0.703 g/mL. Volume of octane is…

Q: It is showing incorrect. Pls help

A: •As there is small calculation mistake in solution prodvided earlier. •Here given atoms which are…

Q: N. O

A: In the given question, we have to draw the resonance structure of the given compounds.

Q: A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady…

A: A graph of temperature vs heat added (kJ/mol) is given for the substance X. Melting point is the…

Q: What is the frequency of electromagnetic radiation with a wavelength of .53m? (C=3.00X108M/s.)…

A: The wavelength of the electromagnetic radiation is = 5.3 m The frequency of the electromagnetic…

Q: se Henry's law and the solubilities given below to calculate the total volume of nitrog- at should…

A: Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and…

Q: For the equilibrium 21Br(g) = 1₂(g) + Br₂(g), Kc = 8.50 × 10 at 150°C. What is the equilibrium…

A:

Q: STARTING AMOUNT X What is the molarity of an aqueous solution that contains 0.0720 g C,H,O, per gram…

A: Given that the aqueous solution contains 0.0720 g of C2H6O2 per gram of the solution

Q: QUESTION 12 Calculate the half-life (s) of a second order reaction with rate constant k=…

A: Given data  Order of reaction = second order  Rate constant (k) = 0.082 Lmol-1s-1  Initial…

Q: 9.30 What are the expectation values for (x) and (x²) for a = 1 state? quantum mechanical harmonic…

A: In quantum mechanics, the particle's behavior is described by wave functions, which are solutions to…

Q: At a certain temperature, 0.374 mol CH4 and 0.640 mol H₂S are placed in a 3.00 L container. CH₂(g) +…

A: Answer: To find out the value of equilibrium constant we need to find out the molar concentration of…

Q: Attached is the 1H NMR spec for phenylethylamine. Draw the structure of the amine on the spectrum,…

A: Given that, the 1H NMR spectrum of phenylethylamine. We have to assign each peaks.

Q: Place the following three choices in order of increasing intermolecular forces. C 5H 12 C 4H 10 C…

A:

Q: The balanced combustion reaction for C, H, is 2C,H,(1) +150₂(g) - 12 CO₂(g) + 6H₂O(1) + 6542 kJ If…

A:

Q: Which reaction below might be a suitable coupled reaction for the reaction A + B -> C + D (AG = -8.7…

A: A spontaneous reaction is the one in which ∆G is negative.  When two reactions are coupled then…

Q: Given the two reactions 1. H₂S(aq) = HS¯(aq) + H+ (aq), K₁ = 9.46x10-8, and 2. HS (aq) = S2- (aq) +…

A:

Q: Maximise the uptime and include a qualitative analysis on energy storage systems; What are the…

A: Redox flow batteries (RFBs) are an alternative energy storage system that offer a range of benefits,…

Q: What are the master formulae for the manufacturing of Bike or car washing shampoo?

A: We need to write the master formulae for the manufacturing of Bike or car washing shampoo.

Q: Ethanol (C₂H₅OH) has a vapor pressure of 93.0 torr and a density of 0.785 g/mL. Pentane (C₅H₁₂) has…

A:

Q: If AS=43,WA=24,HC=(2d+25),CT=(5d-8), then what is the value of d in this situation?

A: If AS=43,WA=24,HC=(2d+25),CT=(5d-8), then we need to find the value of d in this situation.

Q: ACO с Н. дод perts с H D CH3

A: first ethyne is dimethylated then reduction by Lindler catalyst and hydrogen gas leads to cis alkene…

Q: Wyatt (my beagle) weighs 42.50 lbs., convert his weight to grams. 1 lb = 453.59 g O 1.928 x 104 g…

A: Given, weight in lbs = 42.50 lbs we know, 1 lb = 453.59 g => weight in grams = 42.50 lb x (…

Q: The equilibrium constant is 1.48 for the reaction below at 800.0 K. What would be the equilibrium…

A: Given reaction:-  2 NO2(g) <==> 2NO(g) + O2(g) Here, ∆n  = (Gaseous product)-(Gaseous…

Q: 29. How would you complete the following conversions? (May need more than one step) a. с 44 CHO D b.…

A: According to the bartleby Q A guidelines i am answering the first 3 questions please repost…

Q: Determine the molarity of each of the following solutions from its osmotic pressure at 25°C, Include…

A: •Here Osmotic pressure is given. •Using Osmotic pressure we have to calculate molarity of solution.…

Q: Mango-globin” is a hemoglobin variant in which the iron atoms in each subunit have been substituted…

A: Mango-globin” is a hemoglobin variant in which the iron atoms in each subunit have been substituted…

Q: 15. What is the freezing point for an aqueous solution of KBr that was made from dissolving 25.0…

A:

Q: following mass compositions: 43.21% C2.23% H, and 54.56% O. Write down the exact series of steps you…

A:

Q: A 46.81 g46.81 g sample of a substance is initially at 25.7 °C.25.7 °C. After absorbing 1415 J1415 J…

A: Given, heat(q) = 1415 J mass(m) = 46.81 g temperature change(ΔT) = Tfinal - Tinitial = 177.9 °C -…

Q: The Diels-Alder reaction is listed below: A) 6 44 Which one is the right structure of product with…

A:

Q: Assuming 100% dissociation, calculate the freezing point (T) and boiling point (T) of 3.00 m Na₂SO,…

A: we have to calculate the boiling point and freezing point of 3.00 m Na2SO4 solution

Q: Iodine is sparingly soluble in pure water. However, it does `dissolve' in solutions containing…

A:

Q: 2. Using Excel, make a graph of the following data. Plot Mass vs. Volume for the following data on…

A: The given data of mass of Al and mass of Zr and volume is: Volume (mL) Mass of Al (g) Mass of Zr…

Q: What is the concentration of A after 31.1 minutes for the zero order reaction A→ Products when the…

A: The rate of the zero-order reaction does not depend on the concentration of the reactant. For the…

Q: Pressure (atm) A phase diagram for elemental carbon is shown below. Starting at carbon gas, which…

A: Answer: In solid state carbon has two allotropic forms graphite and diamond and these solid forms…

Q: A solution was made by dissolving 3.75 g of a solute in 108.7 g of acetone. The solution boiled at…

A:

Q: Calculate the amount of heat needed to melt 187. g of solid ethanol (CH,CH,OH) and bring it to a…

A: Given: Mass of ethanol = 187 gm Final temperature= —61.6°C Specific heat capacity of ethanol = 2.46…

Q: Keller (c) 8 HO ОН •• ||| provide the mechanism: Bonus ICA H₂SO4 НО III.. ...ОН

A: In the first step of the reaction the intramolecular hemiacetal is hydrolyzed into alcohol and…

Q: a) b) c) d) Write down stepwise process of the following reactions and show the final products. ROOR…

A: Step by step reaction mechanism of the above reactions can be written in one or more than one steps.…

Q: 1. How many chiral centers are there in the following molecule? Identify them with an asterisk. a)…

A: We know chiral centres are those having SP3 hybridised carbon consisting of 4 different groups .

Q: You can identify relative strengths of acidity of molecules using key factors such as those in the…

A:

Q: Q3. Predict the product of the following Diels-Alder reactions; under kinetic control. Include the…

A:

Q: There is a constant current which pasesed on a solution of CuSO for one hour and a 0.040 g of Cu…

A:

Q: Make the following from benzene and any reagents with 4 carbons or fewer. Assume isomers can be…

A: The above given compounds can be synthesized from the benzene by the substitution reaction. This…

Q: Draw the constitutional isomers of trans-1,2-dimethylcyclopropane.

A: Draw the constitutional isomers of trans-1,2-dimethylcyclopropane.

Q: Given the two reactions H2S(aq)⇌HS−(aq)+H+(aq), K1 = 9.11×10−8, and HS−(aq)⇌S2−(aq)+H+(aq), K2 =…

A: The equilibrium constant of a chemical reaction is the value of its reaction quotient at chemical…

Q: Wittig Reaction: Calculate the theoretical and percent yields of ethyl cinnamate. Use 0.15grams as…

A: This is a simple problem of calculating the yield of a reaction where we just have to know the molar…

Q: A 275-g sample of nickel at 100.0°C is placed in 100.0 mL of water at 22.0°C. What is the final…

A: According to the question, Given,Mass of Nickel (m) = 275 g  Temperature of Nickel (TNi) = 100…

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.