Here is the emission spectrum for a hydrogen atom. To the best of your knowledge, how do you think this emission spectrum is created? (Just tell me what you know for now, please don't look up.) I I I

Q: The following graph shows the pH curve for the titration of 25 mL of a 0.1 M monoprotic acid…

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Q: A recipe for 1 cup of hollandaise sauce calls for ½ cup of butter, ¼ cup of hot water, 4 egg yolks,…

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Q: Iron Fe(s) oxides quite easily to Fe2O3(s). Which is more exothermic at room temperature – the…

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Q: If you have 0.301 m³ of water at 25.0 °C in an insulated container and add 0.142 m³ of water at 95.0…

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Q: Which of the following SN2 reactions would NOT proceed as shown? (A) (B) (C) (D) Br Br SNa -Br SNa…

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Q: Compare acids, bases, and neutral substances in terms of their relative H+ and OH- concentrations.…

A: We have to compare acids ,bases , neutral substances in terms of their relative H+ and OH-

Q: The pH of a 0.0060 M solution of HNO₃ is

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Q: PF3                   BaS                  H2S                  SiH4                 AlCl3   For…

A: PF3 : It is an covalent compound. In this molecule the electrons are shared between phosphorus(P)…

Q: +CH₂-CH+n C=0 9 CH3 poly(methyl acrylate) CH3 +CH₂-C C=O 9 CH3 poly(methyl methacrylate)

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Q: Arrange the following compounds in order of increasing solubility in water and briefl explain your…

A: Solubility refers to dissolution of a compound in a solvent. Alkyl halides are compounds which has…

Q: Consider the balanced equation of KIKIr eacting with Pb(NO3)2Pb(NOX3)X2  to form a precipitate.…

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Q: Identify and draw the structures of all constitutional isomers of the following compounds: 1. C4H8O…

A: Compounds having the same molecular formula but different structures i.e. different arrangement of…

Q: Consider the following three statements about neutralisation reactions: I. A neutralisation reaction…

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Q: Determine the pH during the titration of 14.9 mL of 0.149 M nitric acid by 7.12x10-2 M potassium…

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Q: Calculate the pH and the equilibrium concentration of S2- in a 5.18x10-² M hydrosulfuric acid…

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Q: Determine the pH during the titration of 12.7 mL of 0.296 M hydrobromic acid by 0.174 M potassium…

A: we need to calculate the pH of solution at the given titration points

Q: Which of the following statements are true? O A. The weak acid will require the same amount of NaOH…

A: Given that, two solutions of 25.0 mL of 0.10 M strong monoprotic acid and 25.0 mL of 0.10 M weak…

Q: Question 15 The percent ionization of a 0.25 M solution of an unknown weak base is 3.2%. What is the…

A: Since you have asked multiple questions we will solve the first question for you if you want any…

Q: Determine the pH of a 0.352 M NaOH solution. O A. 13.54 O B. 12 O C. 0.352 O D. 0.45

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Q: for each compound draw the ring flip comformation. calculate the energy values for each compound and…

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Q: Q1. What is the density of 50.4 wt% aqueous NaOH (FM 40.00) if 16.5 mL of the solution diluted to…

A: Given, Wt % of aqueous solution of NaOH  = 50.4  wt %

Q: When 46.0 g of an unknown metal at 28.5°C is placed in 94.0 g H2O at 78.5°C, the water temperature…

A: Given For unknown metals mass of unknown metal (mmetal) = 46.0 g Initial temperature of metal (Ti) =…

Q: 8. Draw the Fischer projection of the following compound. Br Br Ans: von Phone

A: “Since you have posted a multiple question, we will solve the first question for you. To get the…

Q: Draw a structural formula for the intermediate in the following reaction CH-C₂ You do not have to…

A: The addition of bromine to an alkene in a nonpolar solvent produces vicinal dibromo alkane.

Q: Write balanced nuclear equations for the decay of: a) Pa-234 to U-234 b) U-234 to Th-230 c) Th-230…

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Q: Calculate the pressure (in atm) of a 3.10 mol sample of ammonia gas at 350.0 K in a 3.00 L container…

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Q: Draw a structural formula for the product formed when 2,2-dimethylpropanal is reduced by hydrogen in…

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Q: How many signals would be present in the ¹HNMR? O 4 02

A: 1HNMR is also known as proton NMR. NMR is nuclear magnetic resonance. It is a technique that is use…

Q: 1st attempt Part 1 See Periodic Table See Hint What mass of potassium nitrate is needed to generate…

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Q: Arrange the following compounds in order of increasing acidity or basicity. Give a brief reasoning…

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Q: D Question 9 Which of the following compounds are amphoteric? Select all that apply. OH₂C₂O4 H₂O…

A: Since you have asked multiple questions we will solve the first question for you if you want any…

Q: 1. HBr, peroxide 2. Mg, ether 3. 4. H3O+ 111 OH

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Q: Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S₂(g) + C(s) =…

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Q: enonesup notezus20 E2C.5(b) Given the reactions (1) and (2) below, determine (i) A.HⓇ and AUº for…

A: In the given question we have to calculate the enthalpy of formation of HI and change in internal…

Q: Calculate the pH and the equilibrium concentrations of HTe™ and Te²- in a 0.0948 M hydrotelluric…

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Q: xH HM

A: The N atom has a lone pair which is a driving force for the reaction. The N atom will abstract the…

Q: What is the change in energy for one addition of Br2 across one double bond in the following acid?…

A: The energy of bonds are given below, Bond Energy (KJ/Mol) -C-H  413 -C-C  348 -C-O  358…

Q: You need a 35% alcohol solution. On hand, you have a 60 mL of a 25% alcohol mixture. You also have…

A: Given, 25% alcohol mixture = 60 mL  Desired alcohol solution= 35%  We have to calculate how much of…

Q: i. C₁7H36 plus oxygen gas j. magnesium metal plus silver nitrate

A: C17H36 (Heptadecane) this is an alkane.  Alkane and O2 react and produce CO2 (carbon dioxide ) and…

Q: CuSO4(aq) + Zn(s) → Cu(s) + ZnSO4(aq) write this reaction into two half reactions Cu²+ (aq) + 2e →→…

A: Given :  Chemical reaction: Zn(s)+CuSO4(aq)---> ZnSO4(aq)+ Cu(s) Two half cell reactions,…

Q: Experiment name: TheAcide-Catalyzed lodination of Acetone Q1:Purpose of experiment Q2: Theory…

A: Acid-catalyzed iodination of acetone:- 1) purpose of the experiment:- This experiment is done to…

Q: At a certain temperature, the ?p for the decomposition of H2S is 0.875.   H2S(g)↽−−⇀H2(g) + S(g)…

A: Given Kp for the below dissociation reaction is 0.875. H2S(g) ⇌ H2(g) + S(g) ; Kp = 0.875

Q: What is the ratio of [A] / [HA] for a buffer solution of HA with a pH of 7 if the pka = 5 for HA? O…

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Q: provide a step-by-step mechanism. show the structure of each intermediates and use curved arrows to…

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Q: Determine the point group of each molecule. Show the different symmetry elements. 2. BHA

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Q: I believe that the principle asked was not listed among the options b. Because water vapor from…

A: Base is not kept in glass bottle because base destroy the glass.  Glass is made up of silica (SiO2 )…

Q: Br h. -CH3 i. H₂C Br CH 'CH Cl CH₂CH3

A: Answer:- This question is answered by using the simple concept of nomenclature of organic compounds…

Q: : calculate the mean and standard deviation of the following set of analytical 15.67, 15.69, 14.89,…

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Q: Which of the following mechanism is preferred for the following reaction? A. E1 B. E2 C. D. S. 1 N…

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Q: Use the chemical equation below to answer the following questions: Fe2O3 (s)  +  3C (s)    2Fe (s)…

A: Here we have to calculate how many moles of Fe can be produced, how many moles Fe2O3 required and…

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.