Which of the following electromagnetic waves is used to probe the crystalline sctructure of matter?   a. x-rays   b. Microwaves   c. Visible light   d. AM radio waves   e. Power waves

Q: The average human body contains 5.80 L of blood with a Fe2+ concentration of 2.10x10-5 M . If a…

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Q: Calculate [H,O*] for a 5.04 x 10-3 M HBr solution. [H,O*] = M Calculate [H,O*] for a 1.60 × 10-2 M…

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Q: 1-Find the reduction potential for the couple (Cl/Cl) at pH =14? 2. Which specie(s) can go…

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Q: If there are 100 moles of O2 in an oxygen tank, how many grams are there?

A:

Q: 3. Would you want to use a material with a high or low specific-heat to make a lunch box that will…

A: We would use a a material with high specific heat to make the launch  box .

Q: Given the reaction: 3Fe(s) + 4H2O(g) → Fe2O3(s) + 4H2(g) Determine the Kc of the reaction at 300°C…

A: Given data :

Q: How are the monomers of a polymer formed?

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Q: 2. Which is the correct arrangement in terms of increasing molecular mobility? A. gas-liquid-solid…

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Q: What volume of 1.772 M BaCl2 is needed to obtain 123 g of BaCl2?

A: BaCl2 = Barium Chloride Molecular weight of BaCl2  = Atomic wt of Ba + Cl x 2…

Q: Use a table of Standard Reduction Potentials to predict if a reaction will occur between Cd metal…

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Q: Part B Asink drain can become dogged with solid tat such an hceryl istearateintearin) Write the…

A: Sink drain become clogged with solid fat such as glyceryl tristearate.

Q: 7. Predict the major organic product(s) of the following reactions. Include any relevant…

A: We have to draw the structure of the major products of the given organic reaction.

Q: 1. If an object has a high specific heat, would it be more like a conductor or an insulator?…

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Q: A voltaic cell is constructed in which the anode is a Co|Co2+ half cell and the cathode is a Sn|Sn²+…

A: Answer: In a electrochemical cell redox reaction takes place and this redox reaction is the one that…

Q: 2X(aq) + Y(s) ⟷ Z(aq) K = 658 at 425 K When the concentration of X = 0.063 at equilibrium, what is…

A: Given equllibrium  equation  2X(aq)+Y(s)  <-> Z(aq) Given equllibrium constant K =658…

Q: The point where the indicator actually changes color is called the. . of the titration. 1. start…

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Q: Calculate the Cal (kcal) in one cup of whole milk that contains 19 g of carbohydrate, 9g of fat, and…

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Q: Muscles produce lactic acid, CH, CH(OH)COOH(aq), during exercise. Calculate the percent ionization…

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Q: Construct a titration curve by reacting a 50.00mL aliquot of NaCN 0.0500M with the 0.100M HCl…

A: we need to calculate pH of the solution after addition of given amount of HCl to NaCN solution

Q: Quation -2 4.00 Le Ne and3.00Lf He, sodh at 298 K ond 2:00 atm, cuove mìxud isothemally ond…

A: Given data Temperature of gas : T=298 K Pressure of gas : P=2 atm Volume of Ne (Gas 1) : 4.00 L…

Q: what is the melting point of divanillyl oxalate

A: Divanillyl oxalate can be made by the reaction of triethylamine, vanillin and oxalyl chloride.…

Q: 90

A: Miller indices for the direction as indicated in the figure are shown in the following step.

Q: starting materlal 1 starting materlal 2 a) Robinson annulation

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Q: Show that the reciprocal lattice of the FCC is the BCC lattice. The reciprocal ā, xã, 42 ×az b, =…

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Q: Calculate the mass in grams of 4.25 moles of Ag2S?

A: Given, moles of Ag2S = 4.25 moles mass (in grams) of 4.25 moles of Ag2S = ? Note:  Atomic mass of Ag…

Q: A certain weak base has a Kp of 8.20 × 10–7. What concentration of this base will produce a pH of…

A: We have to calculate the concentration of the base.

Q: rect Question 8 If a solution contains less than the maximum amount of solute that it could dissolve…

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Q: n of cyclohexene with KMNO4 and NAOH at

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Q: Titration experiment is done to determine type of solution. a) T b) F Select one: True False

A: The statement,"Titration experiment is done to determine type of solution" is

Q: The Claisen condensation converts two molecules of an ester into a B-keto ester. The reaction starts…

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Q: For each system listed in the first column of the table below, decide (if possible) whether the…

A: Here we have to determine change of entropy of the system in the following processes .

Q: 1 add water to 100 mL of a 0.15 M NAOH solution until the final volume is 150 mL, what will the…

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Q: 5. Calculate Keq given the following: A(aq)=3B(s)+2C(aq) [A]eq= 0.812 M [B]eq=0.718 M, [C]eq= 0.319…

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Q: Q.5. What substance is present if the FeCly test gives a purple color? Which sample is the most…

A: Aspirin(C9H8O4) is acetylsalicylic acid or 2-acetoxybenzoic acid which is used as an analgesic to…

Q: There are cautions written in the deodorant bottle. They suggest storing it below 50°C and also warn…

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Q: Q.5. What substance is present if the FeCl, test gives a purpie color? Which sample is the most…

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Q: The heat released in a reaction can be used as a source of mechanical power. What industrial…

A: Thermochemical reactions are those chemical reactions that involve a heat change. It is of two types…

Q: 1. When a 6.50 g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee- cup…

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Q: How many moles of NH3  would need to be added to 512.9 mL of a 0.25 M solution of NH4Cl to produce a…

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Q: Construct the octahedral crystal-field splitting diagram for the metal in each species. V(H2O)63+…

A: Construct the octahedral crystal field splitting diagram for the metal in each species :…

Q: Question 10 A solution is formed by dissolving 25.0 g of NaCl in 750.0 grams of H20. What is the…

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Q: Activated complex 2. According to the diagram, which of the following is Activeted complex correct?…

A: According to the diagram given the average energy of the reactants is less than the energy of the…

Q: Please list four properties that describe a gas

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: 7. Find the equilibrium concentrations for HA, H*, and A for the following reaction: K = 2.0 x 10-5…

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Q: QUESTION 9. Human lungs can absorb 8 gm 0, per hour by respiration. If all oxygen atoms are…

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Q: A sample propane gas has a volume of 300 mL at a pressure of 1.85 atm. Assuming that there are no…

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Q: Ni CH3-CH2–CH2-CH=CH2 +H2 ", Draw the molecule on the canvas by choosing buttons from the Tools (for…

A: In condensed structural formula, no bonds are shown rather only atoms are shown.  In skeletal…

Q: Question 8 A scientist tests the water in a local pond and find: has a pH of 7.9. Based on this…

A: Check the pH of pond water and tell whether it is acidic or basic.

Q: Consider the following alkyne. What is its systematic name? O (4S)-2-ethyl-4-methylhex-1-yne O…

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Q: This week, consider the following terms: Catalyst Activation energy What does the…

A: Answer - Catalyst - the terms mean in everyday language to everyday people - a substance that…

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.