- ΔΗΕ

Q: Match each of the following compounds to one of the HNMR spectra shown below.

A: In a given question , we have to find out compound from the given 1H- NMR spectra

Q: Draw the major product of this reaction. Ignore inorganic byproducts and CO2. 1. O3 2. CH3SCH3…

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Q: What is the relationship between the number of electrons in the valence shell of each of the…

A: Number of valence electrons are electron which are present in valence shell.

Q: (give clear handwritten solution) Select wavelengths ranges in nano meters is associated with UV…

A: The answer is given below

Q: Which ion is aromatic? А. С. D. O A. OC. OD. B. B.

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Q: The equilibrium constant for the reaction N204 (g) + 2 NO2 (g) is 0.100 at 45 °C. Calculate AG° for…

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Q: When 0.1000mol of an unknown acid, represented by HA, are dissolved in enough water to make 1.000L…

A: 1.) First we would write dissociation equation of acid and write expression for Ka.  Then using pH…

Q: Draw the major product of this reaction. Ignore inorganic byproducts and CO2. 1. O3 2. CH3SCH3…

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Q: estion 18 öf 25 A 20.0 L container at 303 K holds a mixture of two gases with a total pressure of…

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Q: ОН ?

A: Protonation of alcoholic oxygen  Loss of leaving group  Carbocation rearrangement if possible…

Q: The membrane shown is permeable only to solute molecules. In which direction will solu flow? 0.4 M…

A: Electrochemistry is branch of chemistry in which we deal with oxidation and reduction reaction. In…

Q: (4) From the data given below calculate AG200 and hence comment on the feasibility of use of…

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Q: The reaction CO + Br2 COBr2 was studied by the initial rate method and the following data were…

A: Given reaction: CO + Br2 → COBr2 We have to find the rate law of this reaction by using the…

Q: Two sets of parallel waves with the same wavelength but different initial phases are directed at a…

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Q: Draw the major product of this reaction. Ignore inorganic byproducts and CO2. 1. O3 2. CH3SCH3…

A:

Q: When the ionic compound Cs2Cro4 is dissolved in water, which species will react with water to a…

A: Ionic compound composed of two parts :-  Cation  Anion  Cation is positively charged species…

Q: Water intoxication is most likely to be a problem among users of:   a. SSRIs      b. traditional…

A: Use of antidepressants and stimulant drugs results in dry mouth and increased urge for water. If the…

Q: Gmail Question 12 of 13 Calculate the root-mean-square velocity, in m/s, for a neon atom at 54.0 °C.…

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Q: If q of the system is positive, which of the following must be true? O w must also be positive.…

A: If q of the system is positive that means heat is given to the system and if q is negative than it…

Q: Calculate the change in entropy of 1 mol of nitrogen if it is heated from 300 K to 1000 K at a…

A: Moles of nitrogen = 1 mole T1 = 300 K T2 = 1000 K P = 1 atm

Q: Calculate AS,º for NH3(g). AS:º = i JK-1

A: To calculate ∆S°f for NH3 (g) , we would first write a reaction for formation of NH3 (g) . Then…

Q: An analytical chemist is titrating 157.6 mL of a 1.000 M solution of cyanic acid (HCNO) with a 1.100…

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Q: What is the chemical formula and Lewis structure for copper (II) ammine complex.

A: Given-> Copper(2)ammine complex

Q: Calculate AS°; for the following compounds in J mol1 K-1. C2H4(g) AS°f = i J mol 1 K1 HC2H3O2(1) AS°…

A: A) Given reaction is 2C(s, graphite) + 2H2(g) ----------> C2H4(g) ∆S°rxn = S° products - s°…

Q: Name the three alkenes using systematic names. H3C CH3 A. H3C The name of compound A is: CH2 B. CH3…

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Q: Draw 2 neutral starting materials. Select Draw Rings More Erase H Cl + HCI

A: Anhydride is carboxylic acid derivative...

Q: Question 11 Calculate the cell potential at 25°C for the Cris)|Cr3"(aq)||Sn"(aq)|Sn(s)…

A: 11) Given, Cell notation: Cr(s)|Cr3+(aq)||Sn2+(aq)|Sn(s) [Cr3+] = 1.50 M [Sn2+] = 0.090 M Cell…

Q: Suppose a 500. mL flask is filled with 1.8 mol of N, and 0.10 mol of O,. The following reaction…

A: First we would Calculate initial molarity of N2 and O2  using given moles and volume . The. We would…

Q: Which one of these represents a CHEMICAL change? A) lard when heated changes to liquid B) water…

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Q: Question: Calcium Fluoride is added to water until the solution is saturated. The fluoride ion…

A: Equilibrium constants can be represented as  Ksp = ( Ca2+) ( F-)2 The detail description is as…

Q: How does the hydronium ion concentration, (H3O+) change when the pH of a solution is lowered from…

A: pH = -log[H3O+]  log[H3O+] = -pH  so, [H3O+] = 10-pH

Q: An aqueous solution contains 0.28 M potassium cyanide. One liter of this solution could be converted…

A: Given-> [KCN] = 0.28 M Volume = 1 L

Q: excess Br, CI4 А. D. Br Br Br Br Br Br Br В. Е. Br Br Br Br Br Br С. Br Br F.

A: Alkene has nucleophilic character .In presence of Br2/CCl4 it give addition reaction and form…

Q: Identify the oxidation agent and reducing agent in the following reaction (equations may not be…

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Q: Outline an extraction procedure by which you would separate a mixture of the following three…

A: Step 1 : mixture of compounds is treated with 10% HCl, aniline will go into water layer. water layer…

Q: 6) Use a curved arrow mechanism to explain the epimerization of the hydroxyl stereocenter in the…

A: Hydride ion abstracts proton from the alcohol which is accompanied by ring opening to produce…

Q: Given that the average concentration of calcium ion in natural waters is 3.8x10⁻⁴ M, and that the…

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Q: The preparations of two aqueous solutions are described in the table below. For each solution, write…

A: The first question is a simple acid and base reaction. It results in the formation of conjugate acid…

Q: What is the mass (in grams) of 11.50 L of propane vapor (C_H) at STP?

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Q: What would be the product of this ozonolysis mechanism? Would it be one product (the same reagent…

A: Ozonolysis of alkenes involves cleavage of carbon-carbon double bond resulting in the formation of…

Q: QUESTION 3 A product of the following sequence of reactions is 1) (Ph)3-P*.C'H2 + CH3COCH2CH3: 2)…

A: ANS. CH3CHOHCH2CH3

Q: OAC Hg. OAc Q

A: It is one of step of oximercuration reaction in which mercurium ion formed.

Q: HBRO (aq) + H2O (1) = H3O* (ag) + BrO" (aq) a) Hypobromous acid dissociates in water according to…

A: 1.)  I ) We would first write expression for Ka . Then using given values we would Calculate…

Q: Guers How quam ef sodium Nitrate mult be many add ed to 230 me of 0.15M nitou aud, in order to…

A: Henderson–Hasselbalch equation, pH = pKa + log[salt]/[acid]

Q: OH 1) TsCl, py 2) NaSH, DMSO

A:

Q: Write the IUPAC names for these alkanes and cycloalkanes. (a) CH¿CHCH,CH,CH3 CH3 (b)…

A: 1. Select the principle carbon chain 2. Numbering 3. Naming (prefix + word root + suffix)

Q: (1) Why don't we observe the transition from nz > n for the hydrogen atom in the line spectrum? Be…

A: Here, I was answered first two questions.

Q: Suppose a student needs to standardize a sodium thiosulfate, Na, S,0,, solution for a titration…

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Q: 1. What are two weak acids that have a similar structure? 2. What is their PKA? 3. Which is more…

A: 1)  Here, acid 1 is Dibromoethanoic acid and acid 2 is Tribromoethanoic acid both the weak acid have…

Q: Question: Determine the volume of the final solution needed to create the desired concentration of…

A: Given, Mass of sodium hydroxide (NaOH) = 5 g Normality of the NaOH solution = 1 N = 1 eq/L Volume of…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.