QUESTION 2 In the addition of hydrogen bromide to alkynes in the absence of peroxides, which of the following species is believed to be an intermediate? O vinyl anion O vinyl cation O vinyl radical O carbene O bromonium ion Туре: МС

Q: A 0.100 mol L- solution of ethylamine (C2H5NH2) has a pH of 11.87. Calculate the Kp for ethylamine. ...

A: Ethylamine is a weak base . A weak base is partially dissociated in water. And the pOH can be found ...

Q: Construct the expression for Kc for the following reaction. 4 HCI(aq) + O:(g) = 2 H:O(1) + 2 Cl:(g) ...

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Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 206. kJ during a ce...

A: We have to predict the type of reaction and change in enthalpy.  

Q: ) You are given an aqueous solution contaminated with the following molecule. Decide if you would us...

A: Given Compound  Solvents for extraction = Diethyl ether and water

Q: A hot lump of 27.0 g of iron at an initial temperature of 81.7 °C is placed in 50.0 mL H,0 initially...

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Q: A 1.0 M solution is made with the imaginary polyprotic acid H2A. For this acid, K31 = 1 x 10-6 and K...

A: pH of an acidic solution is dependent on the hydronium ion concentration. 

Q: Gypsum is the hydrate of calcium sulfate, CaSO4 · 2 H2O.  It is the primary material in sheet rock, ...

A: Given,  Gypsum is the hydrate of calcium sulfate, CaSO4 · 2 H2O  Molar mass of Ca = 40.078 g/mol  Mo...

Q: Determine whether each of the following salts will form a solution that is acidic, basic, or pH-neut...

A: The salts given are  FeCl3 C6H5NH3NO2 NH4Br KClO2  NaBr

Q: The chemical structure of oxamide NH, is shown below. Highlight each atom that is an amino group. :0...

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Q: Balance the equation using the half-reaction method: CN– + MnO4–     -->  CNO–   + MnO2             ...

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Q: Consider the following Newman projections: CH3 CH3 CH3 H. H. H" CH A В Which of the following statem...

A: In conformation A, front carbon contains one CH3 group and two H atom , whereas in conformation B, f...

Q: Draw the starting compound and provide the most probable reagent(s) to prepare 1-isopropylcyclpentan...

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Q: Part A eous een What is the H+ concentration for an aqueous solution with pOH = 2.73 at 25 °C? Expre...

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Q: QUESTION 2 The decomposition process of peroxyacetyl nitrate, PAN is a first order reaction with a h...

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Q: If the reaction below begins with 0.150 M sodium fluoride, what would be the concentration of NaOH a...

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Q: For the balanced chemical reaction 4Al + 3O2 → 2Al2O3 how many moles of Al2O3 can be made by react...

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Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 140. kJ during a ...

A: Enthalpy of a mixture of gaseous reactants increases by 140. KJ  It means enthalpy change (∆H) = + 1...

Q: Consider the reaction, PCI5(g) = PCI3(g)+ Cl2(g) where the value for Ke is 4.0 x 10 5. The initial c...

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Q: A chemist measures the amount of hydrogen gas produced during an experiment. She finds that 90.8 g o...

A: Given :- mass of H2 gas = 90.8 g  To be calculated :- no. of moles of H2

Q: CI

A: The major fuctionalities present in these given molecules are olefin and halides. The nomenclature o...

Q: swater.

A: This is a multiple questions. According to guidelines in multiple questions we can solve only one st...

Q: Water Sugar Lemon Juice Lemonade Percent Leftover Yield Ingredients 946.36 g 196.86 g 193.37 g 719.8...

A: This question is based on stochiometry Stochiometry basically gives us a quantitative relationship b...

Q: A solution is prepared by dissolving 825mg of Disodium phosphate (Na2HPO4) with a density of 1.7 g/c...

A: Mass of disodium phosphate = 825 mg = 0.825 g  Volume = 450 mL = 450 cm3 (1mL = 1cm3)  Density = 1.7...

Q: asider the balanced net ionic equation below for the bicarbonate-carbonate buffer system:

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Q: QUESTION 1 a) Define rate of reaction. Write the expression to show the relationship between the rat...

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Q: A mixture of nitrogen and hydrogen gas is compressed from a volume of 94.0L to a volume of 88.0L, wh...

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Q: Nitrogen monoxide and water react to form ammonia and oxygen, like this: 4 NO(g)+6H2O(g) → 4 NH3(g)+...

A: Answer: This question is based on Le-chatelier's principle according to which, on changing any param...

Q: suggest two reactions that are very slow(take days or longer to complete)

A: Reaction having  very high activation  energy and very small rate constant  are classified  as slow ...

Q: 2. Apply Q test at 95% confidence level for the following set of data on percent copper of a certain...

A: Given Value: 70.65, 70.63, 70.64, 70.21  

Q: At a certain temperature, the pH of a neutral solution is 7.85. What is the value of Kw at that temp...

A:

Q: Consider the reaction, N204(g) = 2 NO2(g) where the value for Ke is 1.6 x 10-6. The initial concentr...

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Q: How many of the following species are stabilized by resonance? O 2 O 1 O 4 O 3

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Q: 1-5. Using the following equation: 2NaOH + H,S0, → 2H,0 + Na,SO, How many grams of sodium sulfate wi...

A: Amount of solute in solution  = volume in L × concentration in M  Weight = Number of mols × molecula...

Q: The following reaction has only one elementary step. Which of the following statements is false? + O...

A: The correct option is:  

Q: Sort the following conformations of butane from most stable to H H H H C H H H. H. H C-CH H H. 1) 2)...

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Q: ) On any clean sheet of paper, draw both the condensed and line-bond structure of the following comp...

A: To draw both the condensed and line-bond structure of the following compounds.,  

Q: B. Give the IUPAC name of the following: 6 CH, CH,- CH CH, CH H,C CH CH,-CH, ÇH-CH, H,C-CH,-CH,- CH-...

A:

Q: Compound "X" has a density of 1.71 g/L at 755 mm Hg and 25 °C. What is the molar mass of  compound X...

A: Density = 1.71 g/L Pressure =  755 mm Hg = 0.993 atm  ( 1 atm = 760 mmHg) Temperature = 25 °C = 298....

Q: Consider the rotational energy diagram: 60 120 180 240 300 360 Dihedral angle (degrees) Which of the...

A: We have find out correct statement

Q: At 25 °C, PCl5 (g) ↔ PCl3 (g) + Cl2 (g) a. Write the equilibrium expression for the reaction b. Init...

A: Consider the given information is as follows; Initial moles of phosphorus pentachloride (PCl5) = 0.4...

Q: C. Draw the chemical structure for each of the following: Ex. 2,3-dimethylpentane CH3 CH3 CH-CH-CH-C...

A:

Q: Drow the most electron-rich carbon atom in he compound below:

A: By + R resonance effect electron density will increase at particular carbon atom.  

Q: A chemist measures the amount of fluorine gas produced during an experiment. She finds that 635. g o...

A:

Q: Write equations showing how each of the following weak bases ionizes water to form OH− 1. NH3 2. H...

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Q: Which of the following is much more acidic?

A: Option B is correct answer.  

Q: 14 of 25 Convert the quantities. 3.27 x 1027 P,O0 molecules = 4.58 x1028 atoms 6.586 x 1020 formula ...

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Q: Consider the following reaction. Pb(NO3)2(aq) + 2 KC(aq) → PBCI2(x) + 2 KNO3(y) Which species would ...

A: Spectator ions are those which present in both side of a reaction and does not take part in the reac...

Q: In terms of collision theory, When is a chemical reaction occurs?   A. chemical bonds are broken by ...

A:

Q: 2-ethyl-3-hexyne 4-chloro-2-pentyne 4-heptyne QUESTION 2 In the addition of hydrogen bromide to alky...

A:

Q: An iodine-clock kinetics experiment was performed by varying the composition of reactant solutions a...

A: Correct answer:Mechanism 2 Rate determining state is that elementary step which is slowest. now if w...

Reactions of Ethers

Ethers (R-O-R’) are compounds formed by replacing hydrogen atoms of an alcohol (R-OH compound) or a phenol (C6H5OH) by an aryl/ acyl group (functional group after removing single hydrogen from an aromatic ring). In this section, reaction, preparation and behavior of ethers are discussed in the context of organic chemistry.

Epoxides

Epoxides are a special class of cyclic ethers which are an important functional group in organic chemistry and generate reactive centers due to their unusual high reactivity. Due to their high reactivity, epoxides are considered to be toxic and mutagenic.

Williamson Ether Synthesis

An organic reaction in which an organohalide and a deprotonated alcohol forms ether is known as Williamson ether synthesis. Alexander Williamson developed the Williamson ether synthesis in 1850. The formation of ether in this synthesis is an SN2 reaction.