A student in chem 2211 performed the following Diesl-Alder reaction. a. Provide the structure of the Diene and Dienophile for the reaction. b. Show the complete mechanism of how to form the major product. c. The student performed a TLC for the reaction spotting the Diene and the product, but did not label which spot was the diene and the product. Determine which spot is the Diene (A or B) and which spot is the product (A or B). d. Calculate the Rf values for A and B. OCH3 OCH3 diene dienophile A 74 cm 8.0 сm B 3.6 сm

Q: white precipitate forms. What are the cations that may be present in the precipitate? a) Addition of…

A: Group I cations precipitate on addition of aq. HCl. The group I cations form white precipitates. The…

Q: An aqueous solution is prepared to be 0.232 M in sodium nitrite and 0.101 M in acetic acid. (1) Is…

A: An aqueous solution is prepared to be 0.232 M in sodium nitrite and 0.101 M in acetic acid. 1) Is…

Q: reagents inorganic byproducts formed. 1. NAOCH2CH3 %3D Drawing 2. (CHa)2CHCI (1 equiv) 1. NAOCH:CHa…

A:

Q: Compare diethyl ether (CH;CH2OCH2CH3) and pentane (CH3CH2CH2CH2CH3). Identify which structure is…

A: 1.) Polarity is dependent on nature of atoms present and their geometry.  2.) Boiling point is…

Q: An aqueous solution of sodium hydroxide is standardized by titration with a 0.117 M solution of…

A:

Q: Oil is insoluble in water. This is because of the differences in the polarity of the liquids, one is…

A: A solution of made of two components: solute and solvent. Solute is present in the minor quantity in…

Q: Draw the Lewis structure of CH, Cl,. Include all the lone pairs.

A: Given :-  molecular formula = CH2Cl2  To draw :-  Lewis structure of CH2Cl2

Q: Preventing iron auto parts from corroding or rusting can be accomplished by electroplating the iron…

A: This question is based on electroplating of chromium on iron articles.And we are asked to write the…

Q: Which of the following molecules has a central atom that is sp hybridized? Select one: a. C2H2 O b.…

A: We will draw lewis structure of each molecule. If geometry of molecule is tetrahedral , then…

Q: 4. You have run a series of titrations to determine the unknown concentration of KHP in a solid…

A: Given the sample concentrations: 46.14%, 45.69%, 40.15%, 45.55%, 46.07%, 45.98% We need to analyse…

Q: 7. Which of the following solutes would create the most change in the boiling point and freezing…

A: Since you have asked for question number 7 only, we are providing you a solution for it only. If you…

Q: Choose the BEST classification for each structure shown below. Classifications to Choose from:…

A: Functional groups are used to distinguish between different chemical compounds as due to the…

Q: wole H3C CI NOC XT H3C OH NMe₂ Dimethylaminopyridine (DMAP) is often used as a catalyst in…

A: Curved arrows are added in the mechanism to show how electrons are rearranged between the reactants…

Q: v many core electrons are there in rubidium (Rb, element 37) 1 10 18 36

A: Core electrons are the electrons that are not a part of the valence shell electrons.

Q: 1. The pH at the equivalence point of a Titration Exactly 225 mL of 0.150 M HNO2 are titrated with a…

A: We have find out the pH at the equivalence point .

Q: Draw curved arrows to show the movement of electrons in the step of the mechanism shown below.…

A:

Q: 121 6) Consider the unstable nuclide, ¹1n. a) What is the most likely mode of decay for this…

A: Note: As per the guidelines, solution of 6th question has been made. For the expert solution of 7th…

Q: please help me answer all parts I’ve been trying so hard to get this right

A: Reaction between lead acetate and magnesium sulphate to form magnesium acetate and lead sulphate.…

Q: Which phase(s) are present at point E in the diagram below? Pressure solid Temperature E…

A: A phase diagram is a graphical representation of the various phases of a substance that coexist in…

Q: Use the reaction quotient to predict whether a precipitate will form. If 15.0 mL of 3.74×104 M Cal2…

A: The objective of the question is to predict whether the precipitate will occur or not.

Q: Unanswered If burning a substance in pure oxygen gas makes the flame glow brighter, predict what…

A: A substance burns in presence of oxygen. Oxygen helps in combustion of substances.  Thus when it…

Q: 5. Sodium azide rapidly decomposes according to the reaction 2 NaN3 (s) required to form 11.300 g of…

A:

Q: What volume of H2 gas forms at 1.0 atm and 25°C when 50.0 mL of 6.0 M H2SO4 reacts with 5.0 g of Al?…

A: Stoichiometry lays the platform for computing amount (moles) for reacting molecules or yielded…

Q: Question 3 In what sublevel will potassium (K) lose 1 electron? X a. 1 b. 2 C. 3 d. 4

A: Elements looses electrons from the valence shell (outermost orbital) called as valence electron.  To…

Q: what arrow am i getting wrong please help piont it out and the right answers

A: To show the mechanism of adding second bromine to the bromonium ion.This is an anti-addition…

Q: Draw structural formulas for all of the possible isomers of n-pentyne that can be formed by moving…

A: The structural formulas for all of the possible isomers of n-pentyne that can be formed by moving…

Q: CHE 6.) Provide a reasonable mechanism, including all curvy arrows and intermediates, for the…

A: This is an example of SNAr reaction

Q: Which of the following is a molecule, but not a compound? A) CO2 B) Ag C) NaCl D) N2 E) Ne

A: To identify the molecule which is not a compound.

Q: A biochemist carefully measures the molarity of salt in 84.1 mL of photobacterium cell growth medium…

A:

Q: Draw the major product of this reaction. Ignore inorganic byproducts. DCC OH CH3CH2N H₂ ✓ HO N. H N

A: Carboxylic acid reacts with amine in presence of DCC to form amide.

Q: 10)35 grams of Nitrogen Monoxide would exert how much pressure in torr if stored in a 2000cm3…

A:

Q: 6. The density of sodium chloride is 2.165 g/cm³. Using only the density and crystal structure,…

A: Answer:Here:

Q: Draw an alternative Lewis (resonance) structure for the incomplete structure. Show the unshared…

A: A hypervalent atom bears a positive charge. In the given structure the valency of nitrogen is 4…

Q: Identify each energy exchange as primarily heat, work or both and determine whether the sign of AE…

A: Hello. Since the question contains more than three subparts, the first three sub-parts shall only be…

Q: Which electron-pair geometry has the lowest electron-electron repulsive forces? Select one: O a.…

A: Given that geometry having less electron electron repulsion

Q: For the molecule below, predict the expected peak integral for the indicated proton. Enter the…

A: Peak integral in a 1H NMR spectrum is the no. Of equivalent proton which gives the same chemical…

Q: Help!!!! i dont understand

A: the reactions are given as,

Q: 6. (7) Consider the following phase diagram for a substance. Label the following regions or places:…

A: A phase diagram gives information about the phase of a substance at a given temperature and…

Q: For the reaction given below, the value of the equilibrium constant at 400 K is 64.0. Br2(g) +…

A: Equilibrium constant = 64.0

Q: question2 help

A: Step 1: Step 2: Step 3: Step 4:

Q: Compute the root-mean-square speed of O2 molecules in a sample of oxygen gas at a temperature of…

A:

Q: For which of the following reactions does an increase in pressure have no effect on the equilibrium?…

A: For which of the following reaction : increase in pressure doesn't affect the equilibrium ?  a)…

Q: A second reaction mixture was made up in the following way: 2.0 mL 4.0 M acetone + 1.0 mL 1.0 M HCl…

A: Given: a.Determine initial concentrations.b. Time = 140 sDetermine rate of reaction.c. Write the…

Q: Which phase(s) are present at point D in the diagram below? Pressure solid Temperature O liquid E…

A:

Q: Macmillan Learning Write a balanced equation for the reaction between gaseous methane (CH) and…

A: Given,when gaseous methane ( CH4 ) gas to form gaseous carbon tetrafluoride  (CF4 ) and gaseous…

Q: Name the following compound. HO CH;CH2CECCH,CHCH; Choose all that apply. O hept-4-yn-2-ol O…

A: The hydrocarbons which consist of at minimum one triple bond between its constituent carbon atoms…

Q: Is NH3 polar or nonpolar? Is BrCl3 polar or nonpolar? Is PF3Cl₂ polar or nonpolar?

A: A question based on polarity of molecules. 6 inorganic molecules are prescribed, which are to be…

Q: One molecule of lodine (1₂) and two molecules of potassium (NaCl) combine in a reaction. How many…

A: In this question, 1molecule of Iodine combined with 2molecules of NaCl and we need to determine the…

Q: 1. Calculate the fundamental statistical parameters (all measures of central tendency and…

A: Mean (average): Sum of all values divided by the number of values.Median: Middle value when the data…

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.