An excited electron in an Na atom emits radiation at a wavelength 589 nm and returns to the ground state. If the mean time for the transition is about 20 ns, calculate the inherent width in the emission line. Note that the uncertainty principle can be expressed as ApAx and ATAE.

Q: a. Draw the Lewis StruUcture of the following molecules. b. Write the Electronegativity…

A:

Q: Problem f please

A:

Q: Please answer a,c,d,f

A: Since the nucleophile will attack on the propyl iodide and replace the I. Hence the nucleophiles…

Q: Compound 3 The M is at 144 m/z. 100- Relative Intensity SIEMELNGA 8 9 8 Compound 4 Relative…

A: The question is asking us to interpret the mass spectrometry data for two compounds, Compound 3 and…

Q: Show the all work and michenism

A: The question is based on the concept of organic synthesis.  We need to synthesize the product using…

Q: `CI AICI3

A: In Friedel crafts alkylation, the first monoalkylated compound will again undergo an electrophilic…

Q: Draw the missing products or reagents in the following multistep synthesis. Ignore any inorganic…

A: The given reaction is completed in six step.Bromination on alken, elimination by NaNH2, reduction by…

Q: A vehicle's cooling system is being discussed. Technician A states that engine coolant should not be…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Which of the following are favorable characteristics of an extraction solvent?  Circle all that…

A: We have been given five characteristics of an extraction solvent. We have been asked to choose the…

Q: Experimental groups in which you expect a certain predetermined change to occur are: A) Negative…

A: A multiple choice question based research methodology, which is to be accomplished.

Q: can you please check the sig-fig please

A: Rules for determining the number of significant figures in an answer : The result of an addition or…

Q: HO, T-OH, heat HỒ O'HNAN e arrow pushing mechanism

A:

Q: ission on Conversion and Selectivity.

A: I believe you have not attached the task 2, whose reference I have to take while solving the numeric…

Q: 1. KMnOy, H₂ot 2.500/₂ 3. CH 3 CH₂ N /h₂, pyr

A: In this question, we will draw the structure of the major organic product from the given starting…

Q: how many hydrogen bond acceptors are there in pantoprazole?

A: If we consider any hydrogen bond, there consists a donor and an acceptor part. The donor part is the…

Q: 17) 721 10 mg40 10 mg

A: Question - 17 :  7.21 × 103 mg + 43.8 × 102 mg = ?

Q: Evaluate the following statement: The following compound violates Bredt's rule. True False

A: It states that  double bond cannot be placed at the bridgehead of a bridged ring system, unless the…

Q: 1.) Systematic error causes: a) Shifts and trends on control (Levey Jennings) charts. b) Outliers…

A: Two multiple choice questions based on quantitative analysis, which are to be accomplished.

Q: (0) 1.03 2. DMS

A: Ozonolysis is a useful reaction for the oxidative cleavage of alkenes to carbonyl compounds.->…

Q: N-H D =C13 2) Ht HỌC NGH -CH₂ H₂02/ heat -CH₂OH Na₂Cr₂O7 H+

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Show as chair, and show  ring flip result. Which is more prevalent fo teh two results?

A: The chair form of the given structure is

Q: Drawing Arrows THF Na O 'N. .. :CI:O 21 •N Undo C:O Reset Done NaⒸ -8 Drag To Pan

A: Mechanism: When a departing group leaves, a nucleophile hits the substrate simultaneously. As a…

Q: The backbone of a strand of nucleic acid consists of Multiple Choice phosphate units only sugar…

A:

Q: ? 6.

A:

Q: When aspirating, hold the pipette VERTICALLY. Holding the pipette at an angle will cause inaccuracy.…

A:

Q: How do you correct for an or angle flame in a Bunsen burner

A: 1. The height of the flame can be adjusted with the needle valve at the bottom of the burner.

Q: Synthetic method for Preparation of a powder of homo

A: A powder of homogeneous mixtures is composed up of two components adhered to each other to form…

Q: I-Z Br2, FeBr3

A: We have to predict the correct product of the given reaction.

Q: .h) H H3CH₂C Mechanism CH3 + NaSCN Acetone

A:

Q: REPORT SHEET Rr (show calculations below the Distance from Distance from Color of spot(s) origin to…

A: The components in the unknown sample can be identified by comparing their colors and Rf values with…

Q: Filter paper can be added to the developing chamber to help saturate the chamber with solvent vapor.…

A: Answer: True Thin-layer chromatography is a technique for separating a sample into its component…

Q: Curved arrows are used to illustrate the flow of electrons. Use he reaction conditions provided and…

A: Step 1:This reaction is nucleophilic addition reactionIn this reaction grignard ( RMgX) act as a…

Q: What does the number in a filter paper's brand represent?

A: Filter paper is a semipermeable paper made of cellulose that is used to

Q: Drag each of the organic compounds into the correct location based on your best estimation of the…

A: •Here 3 compounds are given for which we have to decide pKa value order. •Firstly we find their…

Q: Can you please answer sub question D only and show all of the work to the solution

A: Given,

Q: 1. HNMe2,pyridine 2.LİAIH, 3. Н,О H,c `Cl 2-7 1.SOCI, 2. NH, 3. NAOH, Br 2-8 1. NAN3 2. LIAIH, 3.…

A: LiAlH4 reduces amide to amine SOCl2 converts COOH to COCl NaOH, Br2 convert CONH2 to -NH2

Q: Within ISO/IEC 17025 international standard, what does 'may' indicate? A requirement a. b. A…

A:

Q: I willl upvote please hurry

A: Given: structure of molecule. Tip : select longest chain containing double bond.

Q: NaOH, H2O OH Ph H. Ph HO,

A: Attack of nucleophile to the carbonyl carbon which is the nucleophilic centre. Protonation with the…

Q: Show the mechanism and steps. Show all the work.

A:

Q: The difference between methyl orange manual And the red instance guide

A: the solution is shown below.

Q: 16) 3.1 x 10 kL+534x 10 kL-

A: In the given question, we have to find out 3.1×104kL + 5.34×106kL

Q: 3. Write expressions for the autoionization of a. H₂O b. CH3COOH C. CH3NH₂ d. CH3OH 3

A: Autoionization reactions: Auto ionization reactions are the reactions in which the reactant ionizes…

Q: 1. D. A. - CH3 2. OCH, D. C. B. A. 3. Endo Praduct: A. В.

A:

Q: In an eclipsed conformation of the Newman projection, the dihedral angle, which is an angle between…

A:

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.