What is the ¹H NMR chemical shift value (in ppm) of the indicated hydrogen? ii 2.12 4.12 O 3.12

Q: 17.69 mL of the I2 solution from above is required to titrate a sample containing As2O3. Calculate…

A: The balanced equation is given as As2O3 + 5H2O + 2I2 -----> 2H3AsO4 + 4HI The number of moles of…

Q: 2. A metal sample having a temperature of 100°C and a mass of 45.2 g was placed in 50 g of water…

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Q: 1. Predict the sign of ∆S for the following reaction. a. negative b. positive c. no change   2.…

A: Entropy  It is an measure of randomness present in the system. More is randomness, more is the…

Q: You are given the following reactions to complete in lab. However, you recognize an issue with the…

A: To determine: 1. Why the reactions won't work/give a poor yield? 2. How to resolve the issues to…

Q: tetraphenyl phosphonium chloride (TPPCl) powder (FW=342.39) is 89.0 percent pure. How many grams are…

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Q: If HCI Is added the concentration of HCOOH Will ? Decrease  Increase  Or remain unchanged

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Q: This energy diagram shows the allowed energy levels of an electron in a certain atom or molecule: E…

A: Energy is given by formula E=hv Where, h= planks constant v= frequency But v=c/λ  Where c= speed of…

Q: Ammonium phosphate ((NH),PO) is an important ingredient in many fertilizers. It can be made by…

A: Mass of phosphoric acid = 4.35 g

Q: (a) How many moles of hydrogen peroxide are supplied by 0.75 mL of a 30.0% (w/w) aqueous solution of…

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Q: Substance T. (K) Pe (bar) Br₂(g) 588.00 103.40 F₂ (g) 144.30 51.72 Calculate the I' value for which…

A: Answer is given below

Q: In which of these situations is it necessary to perform an EDTA back titration instead of a direct…

A: There are certain situations are given and we need to predict in which situation it is necessary to…

Q: The molar heat capacity of liquid water is 75.3 J/mol K. If 37.5 g of water is cooled from 42.0 to…

A: Here we are required to find the heat released when water is cooled.

Q: An aqueous solution contains 0.473 M hypochlorous acid. How many mL of 0.319 M potassium hydroxide…

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Q: Write the common (not systematic) name of each organic molecule. structure CH₂ CH₂-CH₂-N-CH₂ CH₂ CH₂…

A: Note! you have asked two different questions at same time, but we can answer only first one (as not…

Q: Suggest a synthesis for the following alcohol starting from an aldehyde or ketone and…

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Q: What type of nitrogen functional group is shown in this picture? NH₂ A) primary amine B) secondary…

A: If Amine bonded with one alkyl group  then it is primary amine

Q: plz show the full mechanims for this reaction with arrows! CH3 OCH3 H3O+ H₂O/CH3OH -CH3

A: In the presence of acid and methoxy oxygene gets protonated to produce oxonium ion. Removal of…

Q: earch 55.0 mL of 0.30 M HF (K₂ = 7.2 x 10-4)is titrated with 5.0 mL of 0.55 M NaOH. Calculate the pH…

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Q: 1. Draw structure of the following compounds? A) ethyldimethylamine B) N,N-dimethylbutanamide C)…

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Q: What is the major product of the following reaction? ОН о (a) 0 (b) 0 (c) 0 (d) PCC (a) SOCI (b) 0:…

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Q: Draw the Lewis structure for nitric acid (HNO3). How many TOTAL equivalent likely resonance…

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Q: The half-life of isotope Z is 4.0 years. If the reaction is first order, how many years would it…

A: Here we are required to the find the year it would take for isotope Z to  decay from 8 mg to 1 mg

Q: A chemist places 3.55 g of sodium carbonate in a 250 mL volumetric flask, and fills it to the mark…

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Q: D. Draw stepwise mechanism for the given amide. You can use hydroxybenzotriazole (HOBt) or…

A: When a carboxylic acid reacts with an amine in presence of diisopropylcarbodiimide(DIC) it forms…

Q: 6. Scientists find a wooden spoon and they want to use carbon dating to figure out how old it is. If…

A: All natural and artificial radio active decays follows first order kinetics In case of first order…

Q: Consider the following sample data for the Titration of Citric Acid in Sprite experiment. Calculate…

A: Molarity (M) :-  The number of moles of solute dissolved in one litre of solution is known as…

Q: Use the figure below to answer the following: a) Determine the energy difference between the 6s and…

A: To calculate the energy difference between 6s and 5p states, 4d and 5p states, and between the 6s…

Q: .a)The 1H NMR, 13C NMR, and the IR spectra of compound 2 are shown below. The molecular formula is…

A: Ozonolysis is reaction in which alkene is converted into corresponding carbonyl compounds either…

Q: An engine generates 15.7 g of nitric oxide gas during a laboratory test. How much heat was absorbed…

A: Given -> N2(g) + O2(g) ---> NO(g) ∆H°= 180.5 KJ ---- (1)  Weight of NO = 15.7 gm

Q: Provide the correct systematic name for the compound shown here. N,N,N- N,N- N- sec- di tert- iso…

A: Note- we can provide answer for first question only (as per bartleby guidelines, unless not…

Q: Calculate the enthalpy change of the reaction below using Hess's law.   S(s) + O2(g) → SO2(g) (1) 2…

A: Hess's law: the amount of heat involved in producing one chemical from another is always the same,…

Q: A pressurized can of whipped cream has an internal pressure of 1.075 atm at 26°C. If it is placed in…

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Q: When a 15.4 mL sample of a 0.327 M aqueous hypochlorous acid solution is titrated with a 0.369 M…

A: Answer: HClO is a weak acid and it is being titrated against strong base NaOH and we have to find…

Q: What is the % error if the theoretical value of the enthalpy of a reaction is 97 kJ and the…

A: % error can be calculated using the values of experimental and theoretical value.

Q: Can you break down this Infrared Spectroscopy? Break down the different peaks and what they could be

A: Infrared spectroscopy deals with the study of interaction of compounds/ organic molecules with…

Q: An arctic weather balloon is filled with 24.0 L of helium gas inside a prep shed. The temperature…

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Q: 5. Phosphate buffer is commonly used in biochemical work due to its second pka of 7.2. The two forms…

A: "Since you have asked multiple questions, we will solve the first one for you. For the remaining…

Q: Suppose you had used 4.00 grams of NaOH(s) in Reaction 1. What would have  been the number of Joules…

A: Initial mass of NaOH = 2 g Volume of water used is 100 ml As density is not given, I have considered…

Q: Some formulas can be drawn multiple ways; molecules that share the same formula but have different…

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Q: A sample of ordinary table salt is 98.8% NaCl and 1.2% MgCl2 by mass. What is [Cl] if 6.85 g of…

A: This is simple problem of mole no. Here we first have to calculate the no of moles of NaCl and MgCl2…

Q: You are given the following reactions to complete in lab. However, you recognize an issue with the…

A: To determine: 1. Why the reactions won't work/give a poor yield? 2. How to resolve the issues to…

Q: How many molecules of F2 are needed to produce 6.52g of NaF in the reaction below?  2 NaBr + F2 -->…

A: Given that , Weight of NaF = 6.52 g  Molecular mass of NaF = 42 g/mol

Q: A small amount of NH4+ (pKa = 9.3) is added to a phosphate buffer at pH 7.4. Calculate the % base…

A: given: pka = 9.3 pH = 7.4 To find: % base form of ammonia at equilibrium.

Q: A solution of phosphate (pKa = 2.1, 6.8, 12.4) contains 0.0100 mol H2PO4- and 0.0250 mol HPO42-.…

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Q: What is the major product of the following reaction? Br | CH3CH₂CHCH3 CH3CH₂O Na+ CH₂CH₂OH

A: Here we are required to find the product of the reaction.

Q: The following data were obtained when a Ca²+ ion-selective electrode was immersed in a series of…

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Q: 2. Draw the mechanism for the following reactions. Include all curved arrows. Reaction 1: OH…

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Q: What are ketals and hemiacetals? Give their importance.

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Q: Consider the reaction: 2Na(s) + 2H₂O(l) → 2NaOH(aq) + H₂(g) Using standard absolute entropies at 298…

A: The entropy change for the system is calculated as: ∆Ssystemo=n∑Soproducts-m∑Soreactants ......(1)…

Q: find the volume of 5.2  x 10 ^26 molecules of CH4 .  Find the volume of 56.0 grams of O2.

A: The volume of 1 mole of any substance is 22.4 L.  Similarly the no of molecules in 1 mole of any…

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.