Which of the following transitions in a hydrogen atom represents the emission of the shortest wavelength? a) n=3 to n=1 b) n=2 to n=4 c) n= 1 to n=4 d) n=5 to n=3 e) n=2 to n=5

Q: 158mg of an unknown protien are dissolved in enough solvent to make 5.00 mL of solution. the osmotic…

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Q: For a reaction of the form, A + B + C --> Products, the following observations are made: doubling…

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Q: Based on activation energies and energy changes and assuming that all collision factors are the…

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Q: Why is organic chemistry so important?

A: Organic chemistry is branch of chemistry in which we deal hydrocarbons that are made up of carbon…

Q: the molecule is most acidic and drow all the significant resonance Structures and which anion (S…

A: Rules to find out major resonance contributor:  1) It should be a neutral molecule if it is…

Q: 3. Complete the chair conformations on the right by adding isopropyl groups in appropriate…

A: Axial conformer is less stable than the corresponding equatorial conformer.

Q: Sometimes as a solute dissolves in a solvent, the solute molecules dissociate and sometimes they…

A: •Here we are using solution in which solute dissolved and its molar mass is unknown •In solutions we…

Q: Name the functional group shown in the picture below: H₂N a b b d: HN NH a NH₂ NH OH C

A: Organic molecule has some group that are more responsible for the chemical reaction. The group is…

Q: 1. Name the following compounds including stereochemistry if shown, according to IUPAC rules HO OH…

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Q: Under certain conditions, the substance calcium carbonate can be broken down to form calcium oxide…

A: Given, mass of calcium carbonate reacts = 28.4 g mass of Carbon dioxide formed = ? Note: molar mass…

Q: Identify the point(s) on the following diagram where the addition of heat will cause the temperature…

A: As seen from the graph there are 10 points where the changes occur .  Now , At point A, as the heat…

Q: Select all of the following that may be held together by electrostatic forces: an entire atom a gas…

A: The electrostatic force, also known as Columb's force  is an attractive as well as repulsive force.…

Q: Question 1 of 8 Fill in the blanks: Determine the oxidation numbers of each element in. PbCl4; Pb= ,…

A: •       oxidation number,  also called oxidation state, the total number of electrons that an atom…

Q: the blanks: mine the oxidation numbers of each element in. PbCl4; Pb= , Cl=

A: Electrochemistry is branch of chemistry in which we deal with oxidation and reduction reaction.…

Q: Propose an efficient synthesis for the following transformation: o-on The transformation above can…

A: The given ether can be formed by the reaction of alkyl bromide and sodium ethoxide by the Williamson…

Q: Label the following reactions as either chemoselective, regioselective, stereoselective…

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Q: If your air conditioner is more than several years old, it may use the chlorofluorocarbon CCl₂F₂ as…

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Q: Question 8 01 8 Fill in the blanks: Choices: A - 3H₂O B-6H* Step 1 D - 1 Perform the balancing of…

A: Balancing of redox reaction can be done using half reaction method or oxidation number method. The…

Q: Draw a properly labeled orbital diagram for a gallium atom.

A: atomic number of Ga atom = 31 electron number = atomic number = 31  Electron configuration of  Ga…

Q: Hunsdiecker reaction.

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Q: OCl, 0.0114 g of NO, and 0.0533 g of Cl2. (a) Calculate KP for this reaction at this…

A: NOCl decomposes as below 2 NOCl(g) -------------> 2 NO(g) + 1 Cl2(g) Given at equilibrium ,  5-L…

Q: need this question answered in 20 minutes please and thank you. I will write a long and wonderful…

A: Wavelength is distance between one crest or trough to another crest or trough.It can be measured in…

Q: The deflection of a particle beam depends on the charge to mass ratio: (D~q/m). An electron beam,…

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Q: Question for Group Work 3.137 Arrange the orbitals in the order in which they fill and indicate the…

A: In this question, we have to arrange the orbitals in order of their filling and indicate maximum…

Q: There are three main regions of the periodic table. Choose one element from each of these regions…

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Q: QUESTION 4 A 207.8 lb object displaces 2.71 gallons of water when submerged. What is the density of…

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Q: Sodium azide is used in many U.S. auto air bags. Its decomposition reaction is: 2 NaN3(s) 3 N₂(g) +…

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Q: we following initial rate data are for the reaction of ammonium ion with nitrite ion in aqueous…

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Q: If a compound has a log Kow value of 6.5, what would be its predicted concentration (in ppm) in the…

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Q: List the important products of the Chlor-alkali process. Write one important use of each

A: In a process, reaction takes place to form particular products. We have asked the chlor-alkali…

Q: Which of the following conversion factors are correct? Mark all that apply. 1 kg = 1 x 103 g 1 Mg =…

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Q: When 34.6 mg of a certain molecular compound X are dissolved in 45.0 g of dibenzyl ether…

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Q: When eaten, the body breaks down sucrose (C12H22011) into one molecule of glucose (C6H12O6) and one…

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Q: QUESTION 3 35Cl (mass 34.9689 amu) and 37 C1 (mass 36.9659). The atomic weight of Cl in the…

A: Given, Naturally occurring chlorine contains 35Cl (mass 34.9689 amu) and  37Cl (mass 36.9659). The…

Q: 1. Explain why egg whites and milk are used as antidotes for heavy metal poisoning.

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Q: N2H4(1) --> NH3(g)+N2(g) Express your answers as inetegers seperated by commas

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Q: How many molecules are there in (4.87*10^ ^ 2) g CCl 4 ? Answer to 3 significant figures. Note: Your…

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Q: Alkyl halides may be synthesized by reacting an alcohol with an acid (HX). Write the mechanism…

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Q: Write the expression for Keq for the following reactions. In each case indicate whether the reaction…

A: We can write keq by recalling this equation A + B ---> C + D Keq =( Pc × PD) / (PA × PB) Px =…

Q: Why is organic chemistry considered the chemistry of carbon compounds?

A: Chemistry is branch of science that involves study of chemical composition of substances. There are…

Q: What are all the possible resonance structures (contributors) for the compound below? Please draw…

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Q: 2, 4, 6 trinitro aniline is about 104 times less sic compared to its N, N dimethyl derivative.

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Q: Balance each redox reaction in basic solution using the half reaction method Cr2O72-+Hg ----->…

A: Independent two hypothetical half-reactions to aid in understanding the reaction. Requires…

Q: Question 8 01 8 Fill in the blanks: Choices: A - 3H₂O B-6H* Step 1 D - 1 Perform the balancing of…

A: For balancing the redox reaction in acidic medium  one has to balance the number of atoms in both…

Q: A glass contains 50g of water. Convert the mass from gram (g) to kilogram (kg)

A: Given, mass of water = 50 g Convert the mass from gram (g) to kilogram = ? Note: 1000 g = 1 kg

Q: 31) A woman receives 1280 g of type A blood. If the blood has a density of 1.06 g/mL, how many…

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Q: how many sp2 hybridized carbon?

A: sp2 hybridized carbons form a pi bond.Hence by identifying the pi bonds we can calculate the number…

Q: Question 3 of 8 Fill in the blanks: Determine the oxidation number of each element in KNO3, K = N=…

A: Electrochemistry can be defined as the branch of chemistry that deal with oxidation and reduction…

Q: Talk about how ethylene affects fruits and vegetables negatively.

A: Given ethylene affect fruits and vegetables negatively. We need to explain the negative effect of…

Q: how many molecules (not moles) of NH3 are produced from 4.26*10-4 g of H2? Express your answer…

A: We need to find how many molecules (not moles) of NH3 are produced from 4.26×10-4 g of H2.

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.