Write a mechanism for the step shown below, using curved arrows to show electron redistribution. Arrow-pushing Instructions NOC XT م محمد 8:

Q: A lotion vehicle contains 15% w/ of glycerin (sp gr 1.25), How much glycerin should be used in…

A: Given that -  Percentage weight of glycerine = 15%  Specific gravity (sp gr) = 1.25  Volume of…

Q: TRUE OR FALSE  During neutralization reaction, the concentration of the buffer system remains the…

A: This is a problem based on ionic equilibrium where we are dealing with buffer system .

Q: (i) (ii) A high-temperature nitrous oxide-acetylene flame is sometimes required in a flame- AAS. A…

A: 1) High temperature nitrous oxide-acetylene flame is sometimes required in a flame AAS because they…

Q: Predict the electron pair geometry and the molecular structure of each of the following molecules or…

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a…

Q: Consider a water sample in a closed system with Cr,c03-8x10-4 M and pH=8. a) What is the alkalinity…

A: Given, CT,CO3=8×10-4M and pH= 8

Q: Mass number 238 236 234 232 230 228 226 224 222 220 218 216 214 212 210 208 206 204 Pb-Bi Po Po Pb…

A: In the first decay of U-238, U92238, it converts to Thorium-234, Th90234 Atomic number of U92238 =…

Q: Determine the pressure (in atm) of a 6.66-g sample of He gas at 717 K in a container with a volume…

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Q: 1. Calculate AE for each of the following cases: a. q = + 51 kJ, w = - 15 kJ b. q = -65 kJ, w = - 20…

A: Formula :

Q: How much energy is released when 25.0 mL of water cools from 83.5°C to 5.8°C?

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Q: NiO is to be reduced to nickel metal in an industrial process by use of the reaction NiO (s) + CO(g)…

A: The equilibrium reaction is: NiO(s) + CO(g) ⇌ Ni(s) + CO2(g) ; Kp = 6.0*102  or 600

Q: 8.15) What is the acid form of NO3-? Answer: HNO3 EXPLANATION: The acid form of a conjugate pair…

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Q: Water (2570 g ) is heated until it just begins to boil. If the water absorbs 5.19 × 105J of heat in…

A: The equation of heat can be written as -                                    q = mc∆T   --------…

Q: 1,5-methano[10]annulene is stable at room temperature, but [10]annulene is not stable at room…

A: This can be explained on the basis of the concept of aeromaticity and non aeromaticity. As explained…

Q: Draw a monosaccharide described in the following statements: 1.. The enantiomer of D-arabinose.…

A: This question is related to stereochemistry. Enantiomers are the pair of molecules that are mirror…

Q: 2 (g) + 3H2 (g)  2NH3 (g) ΔrS = - 201 J K−1mol−1 ΔrH = - 99.3 kJ mol-1 a)    Calculate the ΔrG…

A: The balanced equation is: N2(g) + 3H2(g) ⇌ 2NH3(g)  ∆rS = - 201 J.mol-1.K-1 or - 0.201 kJ.mol-1.K-1…

Q: Draw only the MAJOR product for each of the following reactions: Br₂ 80° C H₂O+ 0° C

A: -> Conjugated Diene has nucleophilic character hence it can give electrophilic addition reaction.…

Q: Current Attempt in Progress The reagent needed (write the formula) to complete the following…

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Q: On earth, tin has 10 different stable isotopes. The heaviest, 124 Sn makes up 5.80% of naturally…

A: Isotopes are atoms of the same element that have same number of protons and different number of…

Q: A sample of gas occupies 7.91 L at a pressure of 857 mmHg. Determine the new pressure (in atm) of…

A: Given, Note: 760 mmHg = 1 atm Initially Pressure (P1) = 857 mmHg = (857/760) atm =  1.12763 atm…

Q: Draw the major products of the SN1 reaction shown below. Use a dash or wedge bond to indicate…

A: Sn1 mechanism:  It proceed through a carbocation intermediate. Follow first order kinetics. Rate of…

Q: STARTING AMOUNT 0.1 6.60 If you have 155 mL solution of a 0.762 M FeCl solution, how many grams of…

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Q: To measure the concentration of an aqueous solution of H₂O2, an analytical chemist adds strong acid…

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Q: Insert the missing coefficients to completely balance each chemical equation. equation 1: S + 6HNO3…

A: Balanced chemical equation, balanced chemical equation can be define as the reaction in which number…

Q: In the absence of H-bonding, what would you predict the boiling point of HF to be (in °C; provide…

A: A question based intermolecular forces that is to be accomplished.

Q: Why is nitrous oxide / acetylene flame used in certain analysis instead of air / acetylene flame?

A: In certain  analysis Nitrous Oxide/ acetylene flame are used instead of air/acetylene flame.…

Q: How many molecules of an ideal gas are contained in a 2.5 L flask at STP? Submit Answer Tries 99…

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Q: A newly made Styrofoam ball calorimeter was first calibrated by mixing 10.0 mL of 0.40 M…

A: Given: Volume of HCl = 10.0 mL Concentration of HCl = 0.40 M mass of MgO = 0.1008 g MgO (MW = 40.30…

Q: Determine the point group of each molecule. Show the different symmetry elements. 1) SF6

A: Normal Structure of SF6  molecule is :- Its geometry is octahedral and it has 6 equivalent S-F…

Q: Which atomic spectrometer has the highest atomization temperature? What is the advantage of having…

A: Inductively coupled plasma atomic emission spectroscopy (ICP-AES), also referred to as inductively…

Q: The ph of vinegar is 2.7. Calculate the hydronium ion concentratio

A: Here given PH of vinegar = 2.7 We have to calculate conentration of hydronium ion .

Q: Using only C, H and O, write a structural formula for the lowest-molecular-weight chiral molecule of…

A: Given : names of functional group.

Q: 5. Assuming the displacement of a water by a ligand were so favored that the back reaction could be…

A: The formation constant (Kf) is the reaction's equilibrium constant, forming a coordination complex.…

Q: What is the major product between the reaction of 2-methoxypentane and HBr reagent?

A: In the given reaction ether reacts with hydrogen bromide to form an alcohol and alkyl bromide. The…

Q: 1. Write in the correct reagents to accomplish these reactions. a) 2-methyl-2-pentanol b)…

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Q: STARTING AMOUNT X What volume in ADD FACTOR x( ) 0.559 559 mol Nal L of a 0.724 M Nal solution…

A: Molarity of NaI = 0.724 M = 0.724 moles/L (Molarity, M = moles/L) Number of moles of NaI = 0.405…

Q: Assume a scuba diver is working at a depth where the total pressure is 5.0 atm (about 50 m below the…

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Q: 10. a. In a neutral solution, what is the concentration of H3O+? 1.0 x 10-7 M b. In a neutral…

A: 10. pH of a solution is the negative logarithm of hydronium ion concentration.

Q: 2. The pH of a 2.11 M solution of a weak base B is measured to be 11.77 Determine K of the base…

A:

Q: The triprotic form of the amino acid lysine is shown below, along with the pKa value for each…

A:

Q: With the aid of a suitable schematic diagram, discuss the working principles for following atomic…

A: Atomic absorption spectroscopy is based on absorption of light by free metallic ions. Inductively…

Q: M AL Oxygen gas can be generated by heating KCIO3 in the presence of some MnO₂. 2KCIO3 → 2KCI+ 30₂…

A:

Q: A cylinder filled with CO2 is often used to carbonate fizzy drinks. After some use, the pressure of…

A: Answer: Given data of CO2: P=113400PaV=60.00LT=297KR=0.082L-atm/mol-K

Q: how do we identify stereogenic centers?

A: Organic compounds are the compounds that contain carbon and hydrogen atoms.We have been given four…

Q: Draw the structure of a C5H100 (note the formula carefully) compoundi which gives a negative Jones…

A: Jones test is test for detection of alcohols , only primary , secondary alcohols gives positive…

Q: Predict the products of the following reaction. If no reaction will occur, use the NO REACTION…

A: Given reaction is, Li2SO3(s) + HNO3(aq) ----> ?   Here , Li2SO3 is Lithium sulfite and HNO3 is…

Q: write structural formulas for all the compounds that are trichloro derivatives of cyclopropane,…

A: trichloro derivates means there should be 3 chlorine attached to cyclopropane.   i) 1,1,2- isomer…

Q: oblem Set » Unit 4 Q2 (2 parts) A solution of sodium thiosulfate, Na2S2O3, is 0.4203 M. 8.52 mL of…

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Q: If the K, of weak base H₂X is 7.12x10, then calculate the K, of H₂X. Answer: Check If the K, of weak…

A: The relation between Ka and Kb is- Ka×Kb=Kw=1.0×10-14

Q: Content → C X Aktiv Chemistry app.101edu.co X QSN2/SN1 Reactions Fl: X Draw the major product of the…

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

Q: Co(NH3)6+3 (Kf = 5.0 x 1031) is more stable as compared to Ag(CN)2 (Kf = 1.0 x1021) True O False

A: The given formation constant values along with the chemical equation are: Co3+(aq) + 6NH3(aq) ⇌…

Aromatic Compounds

Aromatic organic compound or aromatic system is an important class of hydrocarbons under the branch of organic chemistry. Aromatic compounds are also called arenas. The definition of aromatic organic compounds can be stated as a class of organic compounds with a planar cyclic ring of atoms bonded through alternated single and double bonds. Due to these alternating bonds, a peculiar feature termed as ‘resonance’, that is, delocalization of pi electrons or the electrons is shared within the atoms of the ring which are present in the aromatic compounds. The word ‘aromatic’ includes a Greek word ‘aroma’ which means smell, indicating that they were named as such due to the sweet odor they produce. Many well-known flavors such as vanilla, cinnamon, and few scents from flowers are extracted from aromatic compounds. Benzene with chemical formula C6H6 is a very common aromatic compound that contains six atoms of carbon held in the cyclic ring of alternate double bonds. It is also to be noted that not all aromatic compounds contain benzene ring. This can be explained by Huckel’s rule.