Predict the 13C NMR and 1H NMR of melatonin, make sure you understand the  assignments and shifts

Q: A titration is carried out to determine the concentration of the acid in an old bottle of aqueous…

A: Given :  Volume of NaOH = 75.3 ml  Concentration of NaOH = 0.250 M  Volume of HCl = 10.0 ml

Q: 7 Draw a Hess's law diagram and calculate the enthalpy change for the reaction: C₂H4(g) + H₂O(l) →…

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Q: What are the functional groups in would you expect there to be in an IR spectrum for…

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Q: Consider the following redox reaction: 2MnO4¹¹ + 3CIO3¹¹ + H₂O → 3CIO4¹ + 2MnO₂ + 2OH-1. The…

A: Reducing agent :- The chemical species which can reduce other species and oxidise itself of known as…

Q: Denver Colorado, is known as the mile high city because it is 5280 feet above sea level and has an…

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Q: which of the following compounds the central atom uses sp3 hybridized orbitals to form bonds? Group…

A: Steric number = number of loan pair + number of bond pair  Steric number = 2 -> sp  Steric…

Q: Consider the equilibrium reaction: CaCO3(s) + H₂O(g) Ca(OH)2(s) + CO2(g) Which of the following…

A: In this reaction solid CaCO3 react with gaseous water to form solid Ca(OH)2 and carbon dioxide gas.…

Q: What is AS for the combustion of propane? C3H8(g) +502(g) 3CO2(g) + 4H2O(g) 1 Substance C3H8(g)…

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Q: Draw the structure and determine the metal-metal bond order consistent with the 18-electron rule for…

A: In this problem, we need to draw the structure of metal complexes and need to find the metal-metal…

Q: Fatty acids and triglycerides are an important source of nutrition and a dense form of stored…

A: The beta oxidation of fatty acid produced acetyl coA which is go through in TCS cycle .and it…

Q: Name the following compound MnSO3

A: Name of the compound is- Manganese(II) sulfite (or, manganese sulfite)

Q: What is the calculated value of the cell potential at 298K for an electrochemical cell with the…

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Q: The electromagnetic spectrum of an analytical sample showed absorption at 3200 cm^-1. calculate the…

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Q: At 25°C, the following heats of reaction are known: 2C₂H₂(g) +502(g) 4CO₂(g) + 2H₂O(l) AH = -2,600…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: You find a solution that contains exactly 69 mM of a weak base. Adding the conjugate acid (pKa =…

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Q: 1. Temperature (room) 2. Atmospheric Pressure 3. Density of dry air 4. Mass of flask + air + stopper…

A: Given is the data of an experiment.

Q: A voltaic cell is prepared using copper and silver. Its cell notation is shown below. Cu(s) | Cu2+…

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Q: Of the following solvents, which is the least appropriate for an SN2 reaction? 요 * 자 OH 용

A: The SN2 reaction is favored by polar aprotic solvents like acetone DMSO etc that are polar enough to…

Q: A scuba diver 40 ft below the ocean surface inhales 80.0 mL of compressed air from a scuba tank at a…

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Q: What is the median of the values 7.79, 8.24, 5.81, 4.97, 1.04, 7.39, and 7.22?

A: Median value can be calculated as:

Q: Write the symbol of the element that when a +2 ion has the abbreviated electron configuration [Ar]3d

A: +2 ions means 2 electrons have been removed from the element

Q: Determine the root-mean-square speed (in m/s) of CH4 molecules at 964.3 Torr and 59.43 °C?

A: Given -> Pressure (P) = 964.3 torr  Temperature (T) = 59.43°C = 59.43 + 273 = 332.43K

Q: The Ba2+ concentration in a saturated solution of barium fluoride is measured and found to be…

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Q: What is the pH of a 5.25 M , solution of HNO3(aq)?} ​

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Q: An aqueous solution of lead acetate, , contains 12.1 grams of lead acetate and 17.3 grams of water.…

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Q: Calculate AH°298, AS 298, and AG 298 for the combustion of 1 mole of nonane, C9H₂0 (MW 128.2 g/mol).…

A: Although in question nonane is asked, but the data provided for octane.

Q: Question. Determination of percent water (%H₂O) in hydrated FeSO4nH₂O is demonstrated in General…

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

A: Answer: CsF is a salt made from the reaction of CsOH and HF and we have to find out whether any of…

Q: Which of the following can react? A) B) CI CI d A CI Cl CI CI CI ČI B CI CI CI CI CI CI KOC(CH₂) ?…

A: -> KOC(CH3)3 is base it can give elimination reaction. -> In E2 elimination reaction anti…

Q: Which alkene is more stable? (a) (b)

A: We have to determine the more stable alkene

Q: When 0.5 g of a liquid is completely evaporated and collected in a liter manometer, the pressure is…

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Q: A student runs two experiments with a constant-volume "bomb" calorimeter containing 1000.g of water…

A: a) Mass of water, mw = 1000 g Change in temperature, ∆t = t2-t1 = 71.24°C - 24.00°C = 47.24 C…

Q: 4. Calculate AH°298, AS°298, and AG 298 for the combustion of 1 mole of nonane, C9H₂0 (MW = 128.2…

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Q: NC. IV F Reactant-Reagent NO₂ OH CN fuming H₂SO4 NaOCH₂CH3 heat hot KMnO4 VI Product V

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Q: Macmillan Learning How many grams of Br are in 395 g CaBr₂? mass:

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Q: The element oxygen was prepared by Joseph Priestley in 1774 by heating mercury(II) oxide: HgO(s) →…

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Q: 4 Write the thermochemical equation that represents: a the combustion of butane, C4H₁0(g) b the…

A: -> In combustion of alkane, alkane reacts with Oxygen and form CO2 and H2O . -> In formation…

Q: What is the pH of a 0.117 M solution of acid HA if the ionization constant (KA) of this acid is 0.42

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Q: Consider the reaction given bellow CH COOH(aq) → CH₂COO-(aq) + H₂0+ (aq) Η adding a few drops of…

A: We have to determine the effect on pH on adding few drops of acid

Q: 4. Rose oxide is a fragrant compound found in roses and rose oil. It is synthesized industrially as…

A: 1. SN1 and E1 reactions proceed via carbocation 2. Diastereomers are the stereoisomers which are not…

Q: What is the formula when the halogen from 3rd principal energy level combines with alkaline earth…

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Q: Use measured cell potential to calculate concentration. When [ Hg2+ ] = 1.46 M, the observed cell…

A: Given, Hg2+(aq) +Mn(s)→Hg(l) +Mn2+(aq) [Hg2+]=1.46MEcell=2.150 V

Q: Define Kinetics, Reaction rate, Rate law, Half life (t1/2) Please do it neat and clean and correctly…

A: These terms can be explained as:

Q: 4. Aside from the ferric chloride test, what other methods can be used to assess the purity of the…

A: The purity of the prepared aspirin can be determined by various methods as discussed below.

Q: CH OOH + ZOU + сно КО N ZI D E CHOOK® ZI + + CH OH

A: The equilibrium lies towards the weaker base side

Q: 3. Elemental boron can be formed by reaction of boron trichloride with hydrogen. BC13(g) + 1.5H₂(g)…

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Q: Triphenylmethyl (trityl) groups are often used for the protection of alcohols because they are…

A: To answer this question we need the concept of cabocation. In adementyl system which is very…

Q: Zinc oxide reacts with water to form zinc hydroxide. If 0.25 mol of zinc oxide is reacted with 0.25…

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Q: How many faradays are transferred in an electrolytic cell when a current of 2.0 A flows for 12…

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Q: A gas volume is 76.31 L at 8.209 atm. The pressure of the gas changed to 2.041 atm at the same…

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Analyzing and Predicting Spectroscopic Data

The interaction of electromagnetic radiation with the structure of molecules in the sample and their study is referred spectroscopy. Several spectroscopic methods are used to acquire sample information, and these methods are proved to be accurate, fast, and non-destructive. The information obtained about the content and composition of molecules from these spectroscopic methods is called spectroscopic data.