NBS, light

Q: Calculate the amount of heat needed to melt93.7 gof solid benzene(C6​H6​)and bring it to a…

A:

Q: Predict the major product(s) of the following reaction. ях ножон " NaOH H2O НО ОН ??? HO ОН ҳ

A: Epoxides are cyclic ethers where the oxygen is surrounded by two carbon atoms on either side.They…

Q: A student experimentally determines the density of a metal cube using the caliper method, liquid…

A: Density of cube = 2.0322 g/cm3Density by caliper = 1.89 g/mL = 1.89 g/cm3 (1mL=1cm3)Density by…

Q: Draw the mechanism of Fischer esterification of below reaction OH OH H₂SO4 ethyl acetate + H₂O

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: A 2.187 g sample of a solid mixture containing only potassium carbonate (MM = 138.2058 g/mol) and…

A: Given,M. M. of potassium carbonate = 138.2058 g/mol M.M. of potassium bicarbonate=100.1154…

Q: Draw a structural formula for the intermediate in the following reaction: CH₂Cl2 Br₂ You do not have…

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Q: 50.0 mL of a 0.200 M nitrous acid (HNO₂) solution is titrated with 0.300 M KOH. What is the pH of…

A: The question is based on the concept of the pH of the solution.It is defined as a negative logarithm…

Q: fre OEt Eto OEt CN O OH 1. NaOEt, EtOH 2. BrCH₂CH(CH3)2 1. NaOEt, EtOH Xs 2. Br(CH₂) Br 3. H₂O, H,…

A:

Q: What is the major organic product obtained from the following reaction? H₂N A. B. hal C. Ph Ph NH₂…

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: w the final product formed in the reactic O O H₂0¹

A: The given ester is cyclic ester.It is also know as lactone. Hydrolysis of lacton give alchol and…

Q: What volume, in mL, of 0.1126 M sodium hydroxide (NaOH) is required to titrate 15.00 mL of 0.1012 M…

A: Neutralization reaction is chemical reaction in which acid and base react together to form salt and…

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

A: Molecules with same molecuar formula but different structures

Q: Which triene has the smallest heat of hydrogenation? 11 ||| IV

A: Heat of Hydrogenation:The heat of hydrogenation refers to the enthalpy change that occurs when one…

Q: Which is true about the B-lactam compounds? Otheir pharmacophore has five-membered ring structure O…

A: -lactam compounds are a class of antibiotics that are effective against a wide range of bacteria.…

Q: 2

A: In the glyoxylate cycle, two molecules of acetyl CoA can be used to produce one molecule of…

Q: Name the following including their absolute configuration. OH HO Br

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Q: Draw the organic product(s) of the following reaction. CH3 NaNH, / NH3(I) CH3 H₂C-C-CEC-C-CH3 CH3…

A: NaNH2 is a strong base and reacts with terminal alkynes ( alkynes having at least one C-H bond at…

Q: You used 80 mL of deionized water instead of the necessary 50 mL of water to make a KHP solution for…

A: The objective of the question is to choose the correct statement regarding the effect on the…

Q: 2. Provide the reagents (and the intermediates) for the following transformation. .Ph + enantiomer

A: The question is based on the concept of organic synthesis.We need to synthesize the product using…

Q: 78. 227 mL of nitrogen gas were collected over water at 25°C. If the vapor pressure of water at 25°C…

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Q: 2. What is the approximate Na ion concentration in a 0.75 M Na₂CO3 solution? A) 0.375 MB) 0.75 M C)…

A: The compound formed by its constituent ions or formed by a positive or a negative ion is called an…

Q: A sample of methane gas at 305 K and 0.460 atm occupies a volume of 2.94 L. If the pressure of the…

A: Answer:As we know,When there is no leakage of gas then value of number of moles of gas can be…

Q: For the following reaction, identify the Brønsted-Lowry acid, base, the conjugate acid and base.…

A: Whether equilibrium lies on the right side or left side depends upon the acidity of the reactant and…

Q: A ? Some important notes: • Draw the major product, or products, of the reaction in the drawing area…

A: The given reaction is an example of diels alder reaction where Diane and dinophile react under…

Q: A chemist dissolves 624. mg of pure barium hydroxide in enough water to make up 70. ml. of solution.…

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Q: Exercise H. Draw structures (use wedge and dash correctly) to show the absolutestereochemistry for…

A: In the first step, we assign the substituents priority order based on CIP rules.Next, we see whether…

Q: Decide whether these proposed Lewis structures are reasonable. proposed Lewis structure HIC=N F=0=F:…

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Q: A mixture contains KCIO, and KCL. Only the KCIO, decomposes via the following reaction: 2KCIO, (s)…

A: Answer:

Q: Draw the starting monomeric structure that would lead to this addition polymer I Select to Draw BF3,…

A: Polymerization is a process  in which  polymers are created by the addition of monomer units. In the…

Q: АЛ ОН БОГ (45PBR ОН SOCI₂

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: Draw the products of the given hydrolysis reactions. X H₂O+ Select Draw Templa C H

A: The objective of the question is to draw the product of the hydrolysis reaction.

Q: IB IM :ZI

A: The resonating structures can be drawn if two multiple bonds or one multiple bond and a lone pair…

Q: A tentative explanation for a set of observations that can be tested by further experimentation is…

A:

Q: Lactic acid is a monoprotic acid with the formula C3H6O3. You have a 25.00 mL sample of lactic acid…

A: The concentration of acids is determined by a neutralization reaction with a base of known…

Q: Predict the organic products that form in the reaction below: y" + -OH H* H+ Y Note: You may assume…

A: Given,The reaction:

Q: A Lewis structure for the carbonate ion is shown here: Which structure is the best resonance…

A: The Lewis dot structure represents the valency electrons present on an atom.

Q: The enthalpy of vaporization of Substance X is 7.00 kJ/mol and its normal boiling point is −33.°C.…

A: Given:enthalpy of vaporization =  7.00 kJ/mol = 7.00 x 103 J/molnormal boiling point = −33°CWe have…

Q: ( HNO3 H₂SO4 ܬܪܐ NO2 H H ܦ

A:

Q: draw a dehydration reaction and provide a detailed mechanism, explaining the formation of all…

A: In chemistry, a dehydration reaction is a type of chemical reaction where the loss of water takes…

Q: Draw the major products of this reaction. Ignore stereochemistry. Ignore inorganic byproducts. 1.03…

A: When an alkene reacts with ozone in presence of Zn, HOAc, the double bond of the alkene will cleave…

Q: Which of the following are incorrect Lewis structures for the molecule or ion indicated (molecular…

A: Answer:Total number of valence electrons shown in Lewis structure should be equal to actual number…

Q: When 25 grams of naphthalene (C10H8) is placed in 600 grams of CCl4 (K= 30°C/m, Tr= -23°C), the…

A:

Q: Read each description in the first column of the table below. If any chemical element with atomic…

A: Periodic table is the arrangement of elements in the order of atomic number. The arrangement is done…

Q: Definition of terms - Battery - Galvanic Cell - Electrolectic Cell Note only need   the…

A: Given -Battery- Galvanic Cell- Electrolectic CellWe need to write the definition of  above terms and…

Q: A 7.428 g sample of KHP, a monoprotic acid, requires 49.68 mL of a KOH solution to reach the…

A: The amount of KHP moles in the KOH , concentration:The amount of KHP moles in the sample:For the…

Q: The Haber-Bosch process involves the combination of nitrogen and hydrogen at high temperatures in…

A: Answer:Reagent that exhuast first in the chemical reaction and decides the yield of product is…

Q: NO2(g) and N₂O4(8) are in a reaction vessel with partial pressures of 0.350 and 0.650 bar,…

A: Given,The partial pressure of NO2 =0.350 barThe partial pressure of N2O4=0.650 barTo find if the…

Q: Phosphoryl chloride, POCI3(g), is used in the manufacturing of flame retardants. It is manufactured…

A: Answer:For any reaction, value of equilibrium constant KC is equal to the ratio of molar…

Q: Provide the major organic product(s) in the reaction below. CH3 1. PhCO 3H 2. CH₂ONa, CH₂OH Draw the…

A: The epoxidation of an alkene using peroxycarboxylic acid, such as PhCO3H is a common method to…

Q: 18. The mass of an Iron cylinder is 125 g. The cylinder is placed into a graduated cylinder…

A: Given,mass of iron cylinder = 125 gvolume of water in graduated cylinder = 30.00 mLvolume of water…

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.