Identify the atom with the following orbital-filling diagram. 1s² 2s² 2p 3s² 3p6 ↓↑ 4s UTUTUTUTUT 3d Express your answer as a chemical symbol. 4p

Q: H₂S(g) + 2 H₂O(1) 3 H₂(g) + SO₂(g) Using the standard thermodynamic data in the tables linked above,…

A: The given balanced chemical reaction is  H2S (g) + 2 H2O (l) →3H2 (g) + SO2 (g)  The equilibrium…

Q: A lake has a surface area of 10.0 square miles and an average depth of 53.0 feet. What is its…

A: 1 cubic meter is equal to 1000 liter.  The volume is the product of surface area to that of depth.

Q: A What is the molarity when 31.50 grams of potassium chloride is added to water to make a 1.25 L…

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Q: 5 C. d. e. f. g. wi yor نہ O abat mo Å N H₂, Pd-C EtOH HO 1. NaCN cat. H₂SO4 1) 2 eq. MeMgBr ether…

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Q: 127 The atomic mass of 531 is 126.9004 amu. Calculate the nuclear binding energy of this nucleus and…

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Q: stable compounds? Xenon Krypton Argon Helium

A: Atoms form compounds/molecules  to attain a stable noble gas configuration. noble gases contain a…

Q: Explain Principles, Merits and Demerits of Electron Ionization (EI)?. Please answer at your own easy…

A: One of the most effective mass spectrometry techniques for identifying a specific organic chemical…

Q: 460 mL of a 0.150 mol/L Pb(NO3)2 solution is mixed with 640 mL of a 0.420 mol/L NaI solution. The…

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Q: 2. Arrange the following groups of compounds in order of decreasing reactivity toward electrophilic…

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Q: At 25.0 °C the Henry's Law constant for nitrogen trifluoride (NF3) gas in water is 7.9 × 10 M/atm.…

A: We need to use Henry's law to calculate the solubility of gas. Then using volume we can calculate…

Q: Chemists graph kinetic data to determine rate constants and the order of reactions. Analyze this…

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Q: Suppose that a batch of parts is plated with copper in an electrolytic bath running at 0.15 V and…

A: Given data is The potential difference in the electrolytic bath (V) = 0.15 V The current passing…

Q: linear trigonal planar tetrahedral trigonal bipyramidal octohedral bent trigonal pyramidal seesaw…

A: Sp3d having 4 bond pair and 1 lone pair and form see-saw like structure.

Q: h i Hg(OAc)₂ EtOH, ether H₂ (1 atm) PtO₂-H₂O H₂ Pt NaBH₁ H₂O, EtOH

A: We have to draw the structures of the products if the below-given reaction. Introduction:…

Q: 7. Consider the reaction A→2 B. Initially 1.5 mol of A is present and no B. What are the amounts of…

A:

Q: A balloon is filled to a volume of 2.00 L with 3.50 moles of gas at 25 °C. With pressure and…

A: Given -->  V1 = 2 L  n1 = 3.5 mol V2 = ? n2 = (3.5 + 1.4) mol = 4.9 mol

Q: F.31 Provide the IUPAC name for each of the following molecules. (a) 0 (b) OH 0 H (c) N NO₂ N (d) 0…

A: there are certain rule for IUPAC naming-  1- first the longest chain which will have the functional…

Q: 1. Draw the structure of sodium (E) 2-bromo-3-iodo-2-octenoate. 2. Give the IUPAC name of this…

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Q: Compound 7 is a neutral, low-melting solid (mp-22.24C) Elemental Analysis: C-72.00%, H-6.67%,…

A: Given C = 72.00 % ; H = 6.67 % and O = 21.33 %

Q: What is the major product of oxidation of 3-ethlpentan-3-ol 3-ethylpentan-3-one 3-ethylpentan-3-al…

A: Oxidation of primary alcohol gives aldehyde or carboxylic acid.…

Q: Macmilla electron configuration for Ga: electron configuration for P: electron configuration for S:…

A: Afbau's principle shows that the electrons are filled up from low energy orbital to high energy…

Q: What is the mole fraction of solvent in a solution of aqueous sucrose (a nonelectrolyte) that has a…

A: According to Raoult's law: PA = XA PA0 where, PA = Vapour pressure of solution; XA = mole fraction…

Q: 8. The standard Gibbs energy of the reaction N, (g) + 3 H₂ (g) → 2 NH, (g) is -32.9 kJ/mol at 298 K.…

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Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: To solve this problem we have to write the chemical formula of given ions  Xn+ + Ym- ---------->…

Q: What was the limiting reagent in the hydrolysis of winter green oil? List all that applies. A. NaOH…

A: Wintergreen oil (methyl salicylate) is a commonly known organic ester which is synthesized from the…

Q: Which substance would you expect to have the highest boiling point? Xe O Ne О не O Kr O Ar

A: Correct answer - Xe Explanation -->  All the given elements are noble gases listed, xenon has the…

Q: Calculate the pH of solutions having the following  [H+]: a) 0.0020 M b) 7.0 x 10(-8) M c) 3.0 M

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Q: The edge length of the unit cell for nickel is 352.4 pm. The density of Ni is 8.90 g/cm3 (actual…

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Q: Which of the following compounds is consistent with the IR spectrum shown below?

A: IR spectrum is a plot of percentage transmittance versus stretching frequency. It gives information…

Q: A sample of helium gas collected at a pressure of 1.08 atm and a temperature of 29.0 °C is found to…

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Q: The gas in a 225.0 mL piston experiences a change in pressure from 1.35 atm to 2.50 atm. What is the…

A: Given -->  V1 = 225 ml = 0.25 L  P1 = 1.35 atm  P2 = 2.5 atm  V2 = ?  Temperature and mol are…

Q: d f. H₂ C. H CH3 Cl₂ H₂ C- H CH₂Cl₂ CH3 Br2, H₂O Hg(OAc)2 H₂O, ether NaBH4 H₂O, EtOH

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Q: For each molecule shown (1) indicate the most acidic hydrogens. (2) Draw the major resonance…

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Q: What is the copper(II)-ion concentration at 25°C in the cell Zn(s) | Zn2+(aq, 1.0 M) || Cu2+(aq) |…

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Q: 6. Consider the following ions when dissolved in water. CIRCLE the one that has the highest enthalpy…

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Q: The reaction below has a Kc value of 88.2. If A and B each have an initial concentration of 0.689 M,…

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Q: What volume of barium chloride, BaCl2 is needed to make a 2.5 M barium chloride solution with 0.25…

A: We know that - -> Molarity is defined as number of moles of solute in one litre solution. ->…

Q: Which one of the molecules below has a chiral (optical) isomer? a. C. b. H-C a H3C-C-CH3 H₂C-CH3 C…

A: Chiral carbon- A chiral carbon atom is a carbon atom that is attached to four different types of…

Q: The half-life of radium-226 is 5.05x10¹0 s. What is the mass in grams of a sample of Ra-226 that has…

A: we have to calculate the mass of Ra-226 Given : activity = 1.00 x 109 atoms/min half life = 5.05 x…

Q: Calculate the lattice energy for LiBr(s) given the following: sublimation energy for Li(s) +166…

A: we have to calculate the lattice energy of LiCl

Q: Identify reagents that can be used to achieve the following transformation. More than one answer may…

A: Given : oxidation reaction Tip : weak oxidising agent has used.

Q: 3. Show the step(s) necessary to carry out this transformation: acetone →N-isopropylaniline

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Q: The average bond order is the number of bonds between two atoms taking into account resonance. Draw…

A: The number of equivalent lewis structures can be drawn by following octet rule.

Q: For the reaction 2HBr(g) + Cl₂(g) 2HCI(g) + Br₂(g) AH = -81.1 kJ and AS° = -1.20 J/K At standard…

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Q: The most abundant isomer following the double bromination of benzene by the reaction a. is which of…

A: -> Aromatic compounds can give electrophilic aromatic substitution reaction and substitute…

Q: What quantity in moles of precipitate will be formed when 45.1 mL of 0.250 M AgNO₃ is reacted with…

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Q: Hexane molecules, C6H14, undergo combustion in the presence of O₂ and are completely converted to…

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Q: To make a 0.50 M solution, how many moles of solute will be needed if 12.0 liters of solution are…

A: Given,  molarity = 0.50 M volume = 12.0 L to calculate : moles of solute

Q: What is the protective coating that helps some metals react slowly with air? passivation oxidation…

A: What is the protective coating that helps some metals react slowly with air?

Q: A car engine cools efficiently when water is used as a coolant, but the engine does not cool as…

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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.