Q: 01 What were the drawbacks in Bohr atomic model how Sommerfeld extended Bohr model to explained hydrogen atom. Were there any short comings in that?

Q: Enter the formula for the conjugate base of H3O+H3O+. Express your answer as a chemical formula.

A: When an acid loses a proton, the conjugate base of the acid is formed.

Q: When the reactants below are mixed together, which of the answer choices correctly indicates which…

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Q: Which product is favored at high temp?   Which product is favored at low temp?   Which is never…

A: The addition reactions of conjugated alkenes proceed via the formation and rearrangement of…

Q: 1. Each electron in an atom may be characterized by a set of four quantum numbers. For each of the…

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Q: derterming the ionic equation

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Q: ▼ Part A Cr₂O72 (aq) +1-(aq) → Cr³+ (aq) + IO3(aq) (acidic solution) Express your answer as a…

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Q: When water is added to a write powder 'A', vigorous reaction takes place and a large amount of heat…

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Q: If we consider the Br- and Sr2+ ions, say which has the largest ionic ray. Justify your answer (be…

A: Answer:- This question is answered by using the simple concept of variation of ionic radius in the…

Q: inorganic lab, 2. Sketch the structure for the two cobalt amine complexes. How does the conductivity…

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Q: Q5 Which two compounds are isomers? 1 2 3 S is NOT a struct

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Q: Consider the following reaction at 298 K. Sn² (aq) + (aq) → Sn(s) + 12 (8) Sn(s) Ered E Sn² (aq) +2e…

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Q: Which of the following alkyl halides will undergo E2 elimination of HBr most rapidly (assume that…

A: -> In elimination reaction base can abstract antiperiplanar beta hydrogen and form alkene as…

Q: True or false? An electronic transition from an orbital 1s to 4g is impossible. Justify your…

A: Given statement is An electronic transition from an orbital 1s to 4g is impossible. We need to find…

Q: A generic salt, AB2, has a molar mass of 303 g/mol and a solubility of 6.70 g/L at 25 °C.…

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Q: b) SNF3 Total valence electrons AXE notation 2D Lewis structure Electron-group geometry Molecular…

A: The lewis structure is the simplest representation of the valence electrons of a molecule. In the…

Q: If AH = -73.54 kJ for a chemical reaction, that reaction Endothermic Spontaneous Exothermic…

A: we have to select the correct option for the given reaction

Q: Critical point coordinates for ethanol (46.068 g mol', d= 0.79 g ml) is 514 K and 62.18 atm, and…

A: We need to find the percentage of remaining liquid ethanol in the container by mass compared to…

Q: a) FNO Total valence electrons AXE notation 2D Lewis structure Electron-group geometry Molecular…

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Q: propose an electron pusning mechanism Enz H₂O muncht wa

A: We have to give the electron pushing mechanism of the below-given transformation.

Q: I H. O H H NaOMe Δ NaOMe A NaOMe OMe A NaOMe OMe A

A: In the above reactions aldehydes are heated with sodium methoxide (NaOMe).  The methoxide ion is…

Q: A diprotic acid, H₂A, has acid dissociation constants of Kat = 4.67 x 104 and K₁2 = 3.53 x 10-¹¹.…

A: Given - Ka1 of H2A = 4.67× 10-4  Ka2 of H2A = 3.53 × 10-11 Concentration of H2A = 0.148 M

Q: Calculate for the reaction that occurs when 25.0 mL of 1.00 M HCl are added to 25.0 mL of 1.00 M…

A: Given: The volume of HCl = 25.0 mL The molarity of HCl = 1.00 M The volume of NaOH = 25.0 mL The…

Q: In benzoic acid, which transitions would we expect?

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Q: 2. In a galvanic cell, Cr(s) oxidizes to form Cr³+ (aq) while Cu²+ (aq) reduces to form Cu(s). Write…

A: At anode, oxidation occur At cathode, Reduction occur

Q: Which of the following compounds is an enantiomer of compound X ?

A: Given : structure of molecule  Tip : mirror images are enantiomer

Q: For each row in the table below, decide whether the pair of elements will form a molecular compound…

A: This problem is based on general chemistry. Here we have to identify the molecules. The solution is…

Q: 15. Look at the medication label. 50% Dextrose in water prefilled single-dose Syringe 50% (25 g/50…

A: To find out the amount of sterile water in tsp required to dissolved 25 g of dextrose to make it 50…

Q: You are given the following isolated system: high temp low temp Assuming you have an adiabatic wall…

A: An adiabatic process is a process that occurs without the transfer of heat and an adiabatic wall is…

Q: What is the chemical shift for the carbonyl (C=O) below on the spectrum

A: The given spectrum represents 13C-NMR. Where the peaks are assigned according to chemical shift…

Q: Give the organic product: I III Br Select one: O A. II O B. I O C. IV O D. III II IV ?

A: To solve this problem we have to complete the given reaction .

Q: Using Eºcell, choose all the reactions that are spontaneous. 2Fe2+ (aq) (aq) + Cl2(g) → 2Fe³+ (aq) +…

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Q: Consider the carbonate ion:   a) Draw 3 resonance structures for the carbonate ion.   b) Draw…

A: The electronic bonding of a single polyatomic species, including partial bonds and partial charges,…

Q: How is the bioethanol process from sugar cane to use as fuel?

A: Bioethanol process from sugarcane is  used as fuel . Sugarcane is passed through extractor through…

Q: How many degrees Celsius higher is the boiling point of water than the value expected based on the…

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Q: 11.54 Which of the following are molecular solids and which are covalent solids? Se8, HBr, Si, CO2,…

A: We need to find the covalent solids and molecular solids from the given options. Then there is an…

Q: Draw the major product of this reaction. Ignore inorganic byproducts. PCC, CH2Cl2 Drawing OH 1

A: Alcohol are oxidised by several reagents to give carbonyl compound. But the reaction is not stopped…

Q: 1) What is an len? Explain the difference between a monatomic and polyatomicon. An ion is a charged…

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Q: What is the most positive oxidation state in which a Group 6A atom could be found? What is the most…

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Q: What is the major organic product formed by the following reaction? + mx NH III IV N-H II "es la…

A: Organic reactions are those in which organic reactant react to form organic products. In the given…

Q: The surface temperature on Venus can approach 743 K. What is this temperature in degrees Celsius?…

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Q: CH 3 - CH3 H II -C-C-CH2—CH3 I I O Classify the molecule below: H A) primary alcohol B) secondary…

A: Primary alcohol - in primary alcohol OH group is attached to the carbon atom having one neighbouring…

Q: please type out explanations- unable to read

A: The above reaction can be explained as:

Q: Write the balanced net ionic equation for the reactions that occur when the given aqueous solutions…

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Q: What is the relationship between vapor pressure and a liquid's temperature?

A: Vapour pressure and temperature of a liquid is directly proportional. Which means if temperature of…

Q: o what volume should you dilute 52 mL of a 12 M stock HNO3 solution to obtain a 0.120 M HNO3…

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Q: Cymbalta (shown below) is an antidepressant. How many asymmetric centers are present in this…

A: -> Asymmetric center is center which contains all different types of substituents it may be…

Q: Each of the following reactions have mistakes in them, please identify those as completely as you…

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Q: Of an initial amount of 9000 g of​ lead-210, how much will remain in 180 ​years? Lead-210 decays at…

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Q: A certain half-reaction has a standard reduction potential "red = +0.84 V. An engineer proposes…

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Q: 4. A student did not read the directions to the experiment properly and mixed up where to put the…

A: Acid base titration can be performed based on the strength of acid or base.

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.