Calculate the HOMO-LUMO energy gap: HOMO = -0.19755 LUMO = -0.03632

Q: Suggest reagents that would achieve the following transformation: CI CI CI 1. CI CI CI 1) xs…

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

Q: i need help making a proton and carbon nmr table for salicylaldehyde

A: Salicylaldehyde is an organic compound which have two function group 1) -OH. 2)-CHO group. We have…

Q: 24. Which of the following best describes the products of the following reaction? NaOCH heat B) D)…

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Q: You want to determine the heat capacity of a piece of ceramic. You place a 94.9 g piece of ceramic,…

A: Given: The mass of the ceramic piece is mc = 94.9 g The initial temperature of the ceramic piece is…

Q: Identify the reagents you would use to convert D-erythrose (shown below) into D-ribose. H. -OH -OH…

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Q: A sample of nitrogen at pressure P is contained in a sealed syringe with a movable piston. If the…

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Q: Complete the three Lewis structures for N(NO₂)₂ by adding missing lone pair electrons and assigning…

A: l

Q: How many grams of NaCl are required to make 250.0 mL of a 3.000 M solution? 14.60 g 175.3 g 43.83 g…

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Q: Describe the formation of a bond between two amino acids that craves a peptide. 1B. The image below…

A: Amino acids are the compounds having amine and carboxylic acid. Amino acids are used to form…

Q: Use molecular orbital theory to predict which of the species below is paramagnetic. A) C₂²- B) B₂²-…

A: Since, If in a molecular orbital, if electron is not paired then species known as paramagnetic and…

Q: When 50 mL of 0.20 M ammonium nitrate and 50 mL of 0.10 M calcium hydroxide are combined, the pH of…

A: Volume of ammonium nitrate solution= 50 mL  Concentration of ammonium nitrate solution = 0.20 M…

Q: Problem 3. o a Find the reagents

A: In the above given transformation, the final product introduces a ketone group and the rest part is…

Q: Question 3 How many Mn atoms equal a mass of 54.94 g? (Refer to the Periodic Table.) 1. A) 1 2. B)…

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Q: What reagent system would work most efficiently in the transformation shown below a b i Selected…

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

Q: 3. If 25.0 mL of vinegar solution (acetic acid) is neutralized 15.0 mL of 0.500 M NaOH, what is the…

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Q: The literature value for the Ksp of Ca(OH)2 AT 25 degrees celsius is 4.68x10-6. How does the value…

A: The value determined in the lab for the solubility product constant (Ksp) of Ca(OH)2 is 3.65x10-6,…

Q: can you help with 10, 11, and 12 as well

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Q: What is the energy of a mole of photons that have a wavelength of 605 nm?

A: Wavelength of the photon = 605 nm Using the data we have to calculate the energy of a mole of…

Q: Why is it important to balance a chemical reaction? a.) to understand qualitative changes b.) to…

A: A balanced chemical equation is one in which the number atoms in reactants is equal to number of…

Q: 9. Identify "X" and "Y" in the following reaction. X Y PCC CH₂Cl₂ OH H

A: A question based on reactions of alcohols. A reaction scheme is given that has to be answered based…

Q: Write the cell notation for:

A: Cell Notation Anode is written always on the left side and cathode is written right side of the salt…

Q: B poin HN Phenol Amide HO Ester O Carboxylic acid OH Consider the molecule above. What is the name…

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Q: What is the pH of a 0.200 M solution of sodium acetate? ||

A: Concentration of sodium acetate = 0.200 M

Q: Draw the major product of this aldol condensation reaction Ignore inorganic byproducts. + O 1. NaOH,…

A: This reaction is a mixed aldol condensation reaction. Aldol condensation is base catalyzed…

Q: Calculate the pH at 25 °C of a 0.24M solution of sodium hypochlorite (NaClO). Note that hypochlorous…

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Q: The following acid-base reaction occurs spontaneously in the gas phase at 25.0 °C: NH3(g) + HCl(g) =…

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Q: A certain system absorbs 0.100 kJ of heat and has 0.800 kJ of work performed on it. What is the…

A: The formula for the calculation of internal energy is : internal energy(ΔE) = heat(q) + work(w)

Q: If a buffer solution is 0.300 M in a weak base (?b=3.7×10−5) and 0.560 M in its conjugate acid, what…

A: Kb= 3.7×10-5

Q: Consider the Lewis dot structure below (which means it does not have to indicate the true…

A: VSEPR (Valence Shell Electron Pair Repulsion) theory is used to determine the shape of the…

Q: Bry!OH ОН A Br с OH O Diastereomers Constitutional Isomers Br Br Enantiomers Conformational Isomers…

A: The given question is simple stereochemical relationship between the organic molecules. If two…

Q: Which of the following pairs of aqueous solutions will form a precipitate when mixed? AgC₂H3O2 +…

A: When an insoluble salt forms as one of the products of a reaction, then we can say that a…

Q: What overall reaction consists of the following three elementary steps? Clo (aq) + H₂O (1) -…

A: We need to find overall reaction from the below three elementary steps

Q: What would the product of this reaction be? H₂CH₂C-CH₂-SH + H₂G-CH₂-SH OCH₂CH₂CH₂CH₂CH₂SH…

A: Thiols are similar to alcohols. In thiol -SH functional group present and in alcohol -OH functional…

Q: Draw the products of the reaction sequence shown belov. Ignore inorganic byproducts. O O H3O+ heat…

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Q: For an atom or ion with 53 electrons: 1) Write the abbreviated electron configuration 2) Identify if…

A: We have given an atom or ion with 53 electrons. The answer with explanation of given subparts are in…

Q: Fill in the name and empirical formula of each ionic compound that could be formed from the ions in…

A: To find the empirical formula of an ionic compound, first identify the cation and write down its…

Q: 11. How many structural isomers are there for CH-CI? A) 2 3 6 5

A: The compounds with the same molecular formula but different bond connectivity are structural…

Q: The pH of a 0.62M solution of 4-chlorobutanoic acid (HC4HO₂Cl) is measured to be 2.37. Calculate the…

A: pH = 2.37  Concentration of 4-chlorobutanoic acid = 0.62 M Ka = ?

Q: Calculate the pH of 670. mL of a 0.243-M solution of hypochlorous acid before and after the addition…

A: Hypochlorous acid :Volume = 670 mLmolarity = 0.243 MKa=3×10-8  (taken from internet )

Q: 29. Given solid samples of Nas[FeBro] and Nas[Fe(CN)6) and the following spectrochemical series,…

A: Given two solid samples of Na4[FeBr6]  and Na4[Fe(CN)6] and we have to identify the false statement…

Q: What is the major product of the following reaction? H a. b. C. d. e. H CI ΝΗ NH₂ NH₂ NH3 NH₂ HCI ?

A: Amines are basic compounds that contain a nitrogen atom with a lone pair of electrons. When an amine…

Q: Draw the skeletal (line-bond) structure of (S)-cyclohexyl-3- Use a dash or wedge bond to indicate…

A: Name is present in the form of  Prefix + word root  + suffix   Prefix = substituents =3 position…

Q: Calculate the solubility (in g/L) of CaSO4(s) in 0.450 M Na2SO4(aq) at 25°C. The ?sp of CaSO4 is…

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Q: If pressure is expressed in atmospheres and volume is expressed in liters, PAV has units of Latm…

A: Given,  The energy : 4  L. atm 1atm = 101325 Pa.  1 L = 1 dm3 .

Q: In HPLC, the is always a liquid. a) mobile phase b) stationary phase c) solute

A: HPLC (high performance liquid chromatography) is an analytical technique to separate mixture of…

Q: CI HO CI CI H₂N OH RO-OR H* H NaOH catalyst catalyst 20 NH₂

A: Monomers undergo radical or acid or base catalysis reaction to form polymers.

Q: Which of the following statements is true? A A bond order of 0 represents a stable chemical bond. B…

A: There are statements given in option we will check each statement one by one -  1) A bond order of 0…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

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Q: In each row check off the boxes that apply to the highlighted reactant. content reaction Ag (aq) + 2…

A: Bronsted-Lowry theory :-  According to this , acid is a species which donates the proton base is a…

Q: fuming HNO, A H₂SO4.4 O₂N NO₂ NO₂ NO₂

A: This is electrophilic aromatic substitution -nitration reaction. Aromatic ring reacts with nitric…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.