Calculate the energy, in joules, associated with the following wavelengths or frequencies:      a) 500 nm light

Q: 3. Cyclopropane gas is 85.7% C and 14.3% H by mass and has a density of 1.71 g/L at 755 mm Hg and…

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Q: Draw a skeletal ("line") structure of this molecule: ОН СН3-СН2 - C-CH=CH2 ОН

A: Since, In skelton structure, not write the C and H atom when valency is not complete then assume…

Q: Using the Cahn-Prelog-Ingold priority rules for ranking substituents around a chirality center,…

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Q: G₁ A-1-17 rl 3 G OH 4h₂.2004 JOH 473 сиз Но Flo. -OH flo.

A: Given in following question some organic compounds give correct IUPAC Name

Q: What is the ratio of bicarbonate ion to carbonic acid ([HCO−3]/[H2CO3])([HCO3−]/[H2CO3]) in blood…

A: We can use Henderson Hasselbalch equation to calculate the ratio.

Q: F

A: -> First of all rank the two atoms directly attached to the pi bond by atomic number Higher…

Q: PROBLEM 3-9 Without looking at the structures, give molecular formulas for the compounds in Problem…

A: In question number 3.8, we need to draw the structure of compound using its IUPAC name given and in…

Q: The fluoride ion, F, reacts with water as a weak base: F- (aq) + H₂O(l) HF (aq) + OH-(ag), with…

A: We will construct the ICE table and using the ICE table, we will construct the equation for Keq. And…

Q: what is the change in enthalpy in kJ for the neutralization reaction between HCl and NaOH?

A: Neutralization reaction - When any acid and base reacts together they forms salt and water as…

Q: Check the box under each molecule in the table below that is an isomer of this molecule: If there…

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Q: WHAT IS GRIGNARD REACTION? WHAT CONSTITUTES A GRIGNARD REAGENT? 6. WHAT IS KETO-ENOL…

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Q: 2. Draw all mechanisms & provide major product. DAYO DAR 10 1. LAH 2. H30* 2:0 OH 300, H +A1H3

A: LiAlH4 also known as Lithium alluminium hydride (LAH)  is one of the most powerful reducing agents…

Q: Carbon dioxide gas is expanded across a valve from 1,600 kPa and 45ºC to 101.33 kPa. Estimate:…

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Q: For many purposes we can treat butane (C₂H₁0) a as an ideal gas at temperatures above its boiling…

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Q: Consider the reaction 2C₂H6 (9) +702 (9)→ 4CO2 (g) + 6H₂O(g) for which AH° = -2855 kJ and AS = 92.70…

A: Given  The balanced chemical reaction for the combustion of ethane is given by      2C2H6(g)     +…

Q: Given the following value, is the starting material or product favored at equilibrium? Select the…

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Q: We will investigate the solubility of barium sulphate, BaSO4(s). The molar mass of BaSO4 is 233.40…

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Q: A 1,2-dichloro- cyclopentane an example of an addition reaction when it is the product between a can…

A: Answer:- This question is answered by using the simple concept of chemical reactions of alkenes…

Q: Determine the most likely structure of a compound, with the molecular formula C9H12, which gave a ¹H…

A: Given, the 1H NMR data: a doublet at 1.25 a septet at 2.90 a multiplet at 7.25 We have to find the…

Q: Correct H3C CH3 H3O+ CH3 H3C OH CH3 CH3 CH2CO2H This reaction involves a hydrolysis followed by an…

A: Hydrolysis is any chemical reaction in which a molecule of water breaks one or more chemical bonds.

Q: If 515 J of heat is added to a gas that does 218 J of work as a result, what is the change in the…

A: According to the first law of thermodynamics, the energy of the universe remains constant. For a…

Q: Consider the reaction: 2Na(s) + 2H₂O(l) → 2NaOH(aq) + H₂(g) Using standard absolute entropies at 298…

A: The entropy change for the system is calculated as: ∆Ssystemo=n∑Soproducts-m∑Soreactants ......(1)…

Q: How many chirality centers (if any) does the molecule below have?

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Q: In your group, depict how bonds break and reform in the chemical reaction for photosynthesis.

A: Given reaction CO2+H2O→C6H12O6 To depict how bond break and form in a chemical reaction

Q: You are investigating the presence of iodine in the otherwise clean waste of a chemical treatment…

A: A = ∈cl ∈= Molar absorptivity coefficient c = Concentration of sample  l = length of cuvette A =…

Q: What type of reaction is shown below? H O SN1 O SN2 O E1 O E2 с C-c Br +

A: Elimination reaction of alkyl halide: Alkyl halide gives an elimination reaction by reacting with a…

Q: 2 moles of A combine with 2 moles of B to produce 6 moles of C and 26 kJ What will be the change in…

A: The given chemical reaction is: 2A+2B→6C ; ∆H=+26 kJ ......(1)

Q: Find literature values (include units g/mL for first two) for the following quanties  a) Density of…

A: a) Density of zinc --> 7.13  g/mL b) Density of copper --> 8.96  g/mL c) Melting point of…

Q: Name these organic compounds: structure F Cl Cl name

A: 1.) To write the IUPAC name, we check the parent carbon chain . In all given three molecules, parent…

Q: What is the pH of a 0.1494 M Ca(OH)2 solution?  Write your answer to the hundredths place.

A: Molarity of Ca(OH)2 solution = 0.1494 M pH of the solution.

Q: During lab, a student mixed 25 mL of 1.0 M H3PO4 with 75 mL of 1.0 M NaOH. Using the equation below,…

A: Answer: When acid and base reacts, neutralization reaction takes place and heat gets released during…

Q: Place the product of each reaction in the box next to the conditions. H 3 C CH ₂ MONTH₂ 2004 Mạnh g…

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Q: what is the percentage yield of ammonia when 14.0 g of N2 gas reacts with 5.0 g of H2 to produce…

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Q: Draw a diagram illustrating the filling of the NO, NF, and OF atoms' molecular bonding and…

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Q: Using the regression equation below, calculate the molar absorptivity with 1cm path length v=…

A: Here we are required to find the molar absorptivity with the path length  1 cm

Q: Express Ksp in terms of molar solubility, x, for the salts with the given formulas. AB(s) Ksp = AB₂…

A: Solubility product constant (Ksp) : Solubility product constant, Ksp is defined as the equilibrium…

Q: List each substituent on the main chain of this organic molecule on a separate row of the table…

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Q: A sample of an ideal gas has a volume of 3.40 L at 14.80 °C and 1.90 atm. What is the volume of the…

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Q: consumer upset with the latest trend of postal rate increases has decided to try to send letters by…

A: The given volume ,V=6.00 X 104 cm3 =0.06m3               Mass, m = 45.1 g =0.0451 kg…

Q: Write a short note about IR spectroscopy instrumentation (source)?

A: IR spectroscopy is a major tool in chemistry for analysis. The IR spectra provide details about…

Q: 'H NMR Spectum: 1111 12 10 d 2H t ΜΗ 1.00 t 2H DDM

A: We will first find the unique proton which are present in different chemical environment. It gives…

Q: Calculate the pH and the equilibrium concentrations of HSeO3 and Se032 in a 0.0298 M selenious acid…

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Q: Using the DEPT and CNMR on page 3 of the activity, select the number of the carbon that corresponds…

A: Given that the DEPT and the 13C NMR spectrum of the 6-methylhept-5-ene-2-one. We have to determine…

Q: Comparison of Henry's Law. Roult's Law Konwalov Base

A: Answer: Henry's law state that the weight of a gas dissolved by a liquid is proportional to the…

Q: How many isomers are possible using the following molecular formula? C3H6C12 h

A: The molecular formula given is C3H6Cl2.

Q: Convert 125 pounds to kilograms

A: Given : mass = 125 pounds  Tip : 1 pound = 0.454 kg

Q: WHAT ARE IMINES? HOW ARE THEY FORMED?

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Q: A chemist wants to extract a solute from 100 mL of water using only 300 mL of ether. The…

A: To calculate the fraction of solution left if a single extraction is carried out using the 300 ml of…

Q: What is the IUPAC name for the compound shown?

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Q: what is the final answer?

A: Ethyl isopropyl ether can be prepared by

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.