Q: Which is the larger amount of energy? Multiple Choice 1 cal 1 J 1 mJ
A: Here, we have to convert each energy term into a single unit.
Q: Di-n-pentyl ether can be converted to 1-bromopentane by treatment with HBr through essentially a(n)…
A: If the substrate is capable of making stable carbocation then SN1 mechanism is favoredIf the…
Q: Vanadium often crystallizes in a body-centered cubic structure. The atomic radius of a V atom is 179…
A:
Q: Oxidation of a 3° alcohol with CrO3 results in the production of an ether a ketone an ester an…
A: CrO3 is a strong oxidising agent. It oxidises secondary alcohol to ketone. Oxidation product with…
Q: Curved arrows are used to illustrate the flow of electrons. Follow the arrows to predict the product…
A:
Q: The vapor pressures of each component in a mixture of propanone (acetone, A) and trichloromethane…
A: Given Data: xC00.20.40.60.81PC (torr)035.382.5142200273PA (torr)34725017592.336.80To…
Q: Calculate how you would prepare 1.000 l of a pH 4.00 buffer made from HC2H3O2 and NaC2H3O2 You are…
A: Henderson-Hasselbalch equation is used for the pH of buffer solution.
Q: 土 1111 애 1111 + 에 111노
A: Here to understand which conformation is the most stable, we need to know about the decalin…
Q: Predict the pH range of a solution of NH4CIO need more informations basic neutral O acidic
A: a) Strong acid + strong base ➝ neutral salt + H2O So, when salt of strong acid and strong base…
Q: 1. НО. 2 AICI 3 НО. 'OH
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: For the shown below proposed step by step mechanisms for the following formation of products…
A:
Q: For the second reaction, what happened to the methyl group sticking from the same carbon as the…
A: E2 Elimination: Strong bases, especially strong hindered bases (such as tert-butoxide) favor E2…
Q: Consider the reaction 2X(g) + Y(g) ↔ 3W(g) + Z(g) In a 4.0 L container, there are the following…
A:
Q: NBS A ?
A: We know that NBS is N-bromosuccinimide, which generated bromine radical, which is shown belowSo,…
Q: Determine whether the stopcock should be completely open, partially open, or completely closed for…
A: IntroductionTitration is a laboratory technique used to determine the concentration of a substance…
Q: The equilibrium constant. K, for the following reaction is 9.52*10 at 350 K CH₂CCI2CH₂Cl₂(g)…
A: Reaction involved: CH4 (g) + CCl4 (g) <------> 2CH2Cl2 (g)The value of equilibrium constant…
Q: The longest wavelength portion of the electromagnetic spectrum is known as: microwaves radio waves…
A: There are different electromagnetic waves, such as radio waves, microwave, infrared wave, x-ray…
Q: A 15.2815.28 g sample of a compound contains 9.759.75 g of iron, Fe,Fe, 1.801.80 g of phosphorus,…
A: Total mass of compound = 15.28 gMass of iron = 9.75 gMass of phosphorus = 1.80 g
Q: name of the compound please.
A: IUPAC nomenclature used for the systematic naming of the organic molecules.According to IUPAC…
Q: Convert each of the following measurements or final calculations into grams. 4473000 ng
A: IntroductionTo perform the conversion, you need to understand the relationship between micrograms…
Q: What would be the optimal conditions to achieve the following synthesis? dilute H₂SO4 O concentrated…
A: Need to determine the optimal condition for the following reaction.
Q: If Al and Fe have same mass and the same amount of heat is added to Al and Fe individually, which…
A:
Q: a substance has an enthalpy or vaporization of 60kj/mole and an enthalpy of sublimation of…
A: Enthalpy of vaporization = 60 kJ/molEnthalpy of sublimation = 124 kJ/molEnthalpy of melting = ?Note:…
Q: A 1.0-mg of Au wire was irradiated with neutrons at a flux of 1.0 x 1013 neutrons cm-2 s-1. The wire…
A: To calculate the time required for irradiation , we can use the equation :Activity = (Flux) * (Cross…
Q: Which of the following compounds are amphoteric? Select all that apply. OH₂O OH₂PO H₂C₂O4 H₂CO3
A:
Q: Please help fill in the rest of the table using the provided data
A: Weight of NaBO3.4H2O = 1.0062 g (in all trials)Molarity of KMnO4 = 0.0101 MVolume of KMnO4 used =…
Q: R + I
A: Resonance structures: These are the set of Lewis structure which describe the delocalisation of…
Q: Draw the products of the two step reaction sequence shown below. Use a dash or wedge bond to…
A: Epoxides are the three membered cyclic ring containing oxygen atom.This ring has strain so it can…
Q: Identify the best leaving group in the following compound.
A: Leaving group is a negatively charged species that leaves the organic molecule as it is stable.
Q: Procedure: 1. Heat denaturation - heat 2 ml of 2% albumin solution to boiling ina test tube. Add a…
A: The various qualitative tests for detecting the presence of proteins are mentioned in the table and…
Q: At 20.0°C, the vapor pressure of water is 17.5 torr. Using the Clausius-Clapeyron equation,…
A:
Q: Analyze IR data: Identify peaks in the IR spectrum and identify their corresponding functional…
A: Benzocaine, ethyl 4-aminobenzoate, is a topical local anesthetic and most commonly used as a…
Q: Convert each of the following measurements or final calculations into grams. 54315000 μg g
A: We know that 1 microgram (g) = 10-6 gram (g).Given mass is 54315000 g.We have to convert this mass…
Q: Calculate the total pressure in a binary system where the mole fraction of A in the vapor phase is…
A:
Q: CI Br Ph NaSCH 3 acetone NaOCH3 CH3OH
A: In this question we need to pay attention on the reaction mechanism and stereochemistry of reactant…
Q: Determine the appropriate configuration (R, S, E, or Z) for each of the following compounds. For…
A: R and S configuration-The atoms or groups connected to the chiral carbon are assigned priorities…
Q: What volume of a 0.217 M hydrobromic acid solution is required to neutralize 29.1 mL of a 0.194 M…
A: a) Given, For hydrobromic acid (HBr) solution concentration of hydrobromic acid (HBr) = 0.217 M =…
Q: When 2810. + 22.7 +0.44 are added, the answer to the correct number of decimal places is O 2833.14…
A:
Q: In the laboratory, a student dilutes 17.8 mL of a 9.80 M hydrobromic acid solution to a total volume…
A:
Q: At which point in the titration is weak acid the only major component of the mixture (i.e. there is…
A: At point A, no titrant is added to the weak acid. So, the only major component of the mixture is…
Q: Calculate the pH of a solution that is prepared by dissolving 0.171 mol of formic acid (HCOOH, K,…
A: 0.450 mol of hydrocyanic acid and (HCN. Ka = 6.17 x 10-10)0.171 mol of formic acid (HCOOH, Ka = 1.77…
Q: You have a stock solution certified by a manufacturer to contain 245.0±0.2 ?g SO2−4/mL. You would…
A: GivenClass A tolerance -100mL volumetric flask= +/- 0.08mL Class B tolerance - 10mol volumetric…
Q: Pick the aromatic molecules оооо DA OB DC OD A B C D
A: pick up the aromatic compound from the data.Based on Huckel's rule , we can find the aromatic…
Q: A 10% by weight NaOH solution is being used for a caustic washing process. In order to smooth the…
A: Caustic Washing process is used to remove impurities from the fabric and improve color and grace.10%…
Q: Rank the following in order of increasing [H3O+]: 0.15 M HCl; 0.15 M HF (K₂ = 6.8 x 10-4); 0.15 M…
A: we have to determine the increasing order of for the given acids
Q: An atom has a diameter of 1.50 Å and the nucleus of that atom has a diameter of 5.00 x 10-5 Å.…
A: Atom Diameter = 1.50 Ao Atom Radius = atom Diameter÷2 = = 0.75…
Q: Consider the following substitution reaction, where X represents an alkyl bromide: X substitution…
A: The SN2 rate order of alkyl halide is --> 1°>2°>3°
Q: How many grams of PbBr2 will precipitate when excess FeBr2 solution is added to 71.0 mL of 0.698 M…
A:
Q: Read each description in the first column of the table below. If any chemical element with atomic…
A: An element in Period 5 and Group 2A: StrontiumA semimetal in group 8A: Elements are Noble Gases:…
Q: 5. Fill in the empty cells in the table below. Atomic number Mass Number Number of Neutrons Number…
A:
Step by step
Solved in 3 steps with 1 images
- When the 1HNMR spectrum of an alcohol is run in dimethylsulfoxide (DMSO) solvent rather than in chloroform, exchange of the Ο-H proton is slow and spin-spin splitting is seen between the Ο-H proton and C-H protons on the adjacent carbon. What spin multiplicities would you expect for the hydroxyl protons in the following alcohols? (a) 2-Methyl-2-propanol (b) Cyclohexanol (c) Ethanol (d) 2-Propanol (e) Cholesterol (f) 1-Methylcyclohexanol2. READ THE DIRECTIONS TO EACH QUESTION CAREFULLY - not following the directions means you get the question wrong! 3. FORMAT YOUR ANSWERS AS DIRECTED - formatting your answers incorrect means you get the question wrong! 4. Below are the IR regions and NMR chemical shifts table for use with the spectroscopy problems: 'H NMR 12 11 R 20 ΟΞΟ 10 OH R 0=C H 9 8 7 ppm 6 OH H C=C-H 5 NH H-C-X H-C-O -OH X = F, Cl, Br (i.e. electronegative atom) 3 -NH 2 H-C-N H-C-S HC- 1 -CH3 -CH₂- CEC-H H-C-C=O -CH H-C-C=C 0 4000 DID small range range of values broad peak =C-H ⇓ 3250- 3300 N-H broad with spikes -3300 -O-H broad-3300 -3400 3500 -O-H -CEN N-H CO I, I =C H 2730- 2820 道 H 3000- 2 peaks 3100 -C-H 2850- 2960 0 -C-O-H broad-3000 3000 usually strong -CEN B 2200 -CICH 3 2200 2500 wavenumber, cm-¹ 2000 C C HC N 1680 OR 1730 200 C. H 1600- 1660 0.585 1710 C. NA₂ 1650 3 1600 O 1500 *** 1000The compound whose IR spectrum is shown below has the following functional group: 4000 3500 2500 WAVENUMBER [cm-1] 3000 2000 1500 1000 500 primary amine O ester O ketone O alcohol O alkyne TRANSMITTANCE [%] 08 09
- For the following 9 compounds (most of which were the ones used in this lab), tell me what peaks you would expect to see in the 'H-NMR spectrum of those compounds. I have provided table for you to fill out with approximate chemical shift (ppm units), peak multiplicity_(singlet, doublet, etc.) and integration of the signal (how many protons would give that signal). No IR data is required. In addition, tell me the number of 13C-NMR signals you would expect to see [specific 13C shifts are not required] PredictHow many non-equivalent proton signals are expected in chloroethene (shown)? CI H H HSignal b in the spectrum for 2-ethoxyethyl acetate ( comes from the Hs connected to: O C4 C1 C3 O C2 O C5 PPM G11C2 CA C5
- Assign the peaks in the spectrum to the functional groups in n-butyl acetate. Microns (µm) 2.5 3.0 3.5 4.0 5.0 6.0 8 10 15 20 100 a 2787 cm-1 1083 cm-1 2965 cm- 1742 cm 1246 cm-1 4000 3500 3000 2500 2000 1500 1000 500 Wavenumber (cm1) C=O peak =| С-Н рeak C-O peak Submit Transmittance (%)Which of the following is the best prediction of the chemical shifts for the signals in the H NMR spectrum for the following compound? O O A B. C. D. 1=0.9 ppm, 11-2.7 ppm, Ill-1.2 ppm, IV-0.9 ppm 1-1.1 ppm, 11-3.2 ppm, Il-1.4 ppm, IV-0.9 ppm 1-0.9 ppm, 11-1.7 ppm, Il-1.2 ppm, IV 1.1 ppm 1-0.9 ppm, 11-1.9 ppm, III-3.4 ppm, IV-0.9 ppm IV 1024 xSelect the functional group represented in the following IR spectrum. LOD TRANSMITTANCEI D 4000 O aldehyde carboxylic acid ketone O alcohol ester 3000 2000 HAVENUMBERI-I 1500 1000 500
- Into how many peaks will each of the circled protons be split? (Assume complete resolution of all NMR peaks is possible) CI CH3 H H₂C OH H H 1 Br H Multiple Choice 11 1=2; 11= 6; 111=4 1=2, 11=7; 11=4 1=2, 11 = 7, 11=3 1= 3,11 = 7, 111=4 III -CH3 H *** NextFor the following 9 compounds (most of which were the ones used in this lab), tell me what peaks you would expect to see in the 'H-NMR spectrum of those compounds. I have provided table for you to fill out with approximate chemical shift (ppm units), peak multiplicity_(singlet, doublet, etc.) and integration of the signal (how many protons would give that signal). No IR data is required. In addition, tell me the number of 13C-NMR signals you would expect to see [specific 13C shifts are not required] PredictMethyl ethyl ether (shown below) has an -OCH 2 - group, an -OCH 3 - group, and a methyl group. The ' H NMR spectrum displays a quartet at 3.5 ppm, a signal at 3.0 ppm, and a signal at 1.2 ppm. Using the data in the table, what is the correct assignment of the spectrum? H H. H. Proton Environment Chemical Shift (8,ppm) Methylene, -C H 2 - 0.3 - 1.2 Methyl, -C H 3 1.1 - 1.9 Alkoxy, -OC H 2/3 3.3 - 4.0 -OC H 3 = 3.5 ppm (quartet), -OC H 2 = 3.0 ppm (singlet), -C H 3 = 1.2 ppm (triplet) -OC H 3 = 1.2 ppm (singlet), -OCH 2 3.5 ppm (quartet), -C H 3 = 3.0 ppm (triplet) -OC H 3 = 3.0 ppm (singlet), -OCH 2= 3.5 ppm (quartet), -C H 3 = 1.2 ppm (triplet) -OC H 3 = 3.5 ppm (quartet), -OC H 2 1.2 ppm (triplet), -C H 3 = 3.0 ppm (quartet) -OC H 3 = 1.2 ppm (singlet), -OCH 2= 3.0 ppm (doublet), -C H 3 = 3.5 ppm (quartet) -OC H 3 = 3.0 ppm (triplet), -OC H 2 = 3.5 ppm (quartet), -C H 3 = 1.2 ppm (triplet)