What is the energy (in J) of a photon with a frequency of 7.03 x 1014 s1? (h= 6.626 × 10-34 J.s)

Q: Jj.10.   If 8.00 g of ice (at 0°C) were added to 60.0 g of water at 42.0 °C, what will the…

A: This problem is based on Thermodynamics better to say thermochemistry where we have to find the…

Q: How many grams of CaCl2are needed to make 314.0 g of a solution that is 30.0% w/w calcium chloride…

A: Dear student since you have posted multiple questions, As per BARTLEBY QnA guidelines We are allowed…

Q: 14. Draw a water molecule → Is it polar or nonpolar? What is its shape?

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Q: Given the information below, calculate the actual reduction potential if the concentrations of…

A: We have find out the reduction potential.

Q: How many signals would you expect each of the following molecules to have ifl ▪ectrum? Label the…

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Q: 2. Suppose your laboratory instructor inadvertently gave you a sample of KHP contaminated with NaCl…

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Q: Which of the following statements describes a Colligative Property? A. it is a physical property of…

A: Solution is made up of two components: solute and solvent. The component which is present in major…

Q: Part B Sodium hydroxide, NaOH, is a strong base that is sometimes used as a cleaning agent since it…

A: Part A  Given :-  Normal saline solution used in IVs is usually around 0.90% m/v or 0.154 M;…

Q: 1) Calculate the following for the reaction at 298.0 K . The reaction is 2 SmCl3(aq) + 6 LiCl(aq) +…

A: As per instruction given in our Q&A guidelines I can answer first question only. This question…

Q: The resonance energy of benzene is? O there is no effect on the resonance energy. O more is gained…

A: When all the properties of a molecule cannot be explained by a single structure , we draw more than…

Q: 10 9 3 (ppm) - 0 8 2 7 6 5 ð (ppm) 1.00 4 0.67 3 2 0.67 1 1.00 0

A: The question is based on the concept of organic spectroscopy. We need to identify the compound.

Q: A student prepared a buffer solution using 60.00 mL of 0.2336 M acetic acid and 53.35 mL of 0.09330…

A: Volume of acetic acid = 60.00ml Concentration of acetic acid= 0.2336 M  Volume of NaOH= 53.35ml…

Q: Dry air (0% humidity) is approximately 78% N₂, 21% O₂, and 1% Ar by moles. Calculate the molar mass…

A: This question belongs to basic concepts of Chemistry. Given, Temperature, T = 0 oC = (0 + 273) K =…

Q: A student needs to prepare a buffer made from HCIO and KCIO with pH 7.253. If K, for HCIO is 3.50 x…

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Q: Write equations corresponding to the following. (Use the lowest possible coefficients. Be sure to…

A: Ionization energy is defined as amount of energy required to remove the most loosely bound electron…

Q: What element forms an ion with an electronic configuration of [Ne] and a -2 charge? element symbol:

A: We have to tell which element forms an ion with an electronic configuration of [Ne] and a -2 charge.…

Q: Synthesis ??? Ph

A: After the conversion of reactant into product, we can figure out that an alkene functional group is…

Q: -C-OH + H-O-CH₂CH₂ H*

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Q: Complete and balance the following redox reaction in basic solution. Be sure to include the proper…

A: Answer: Redox has been made from Red of reduction and Ox of oxidation, therefore redox reaction is…

Q: What quantity of heat (in kJ) is absorbed in the process of making 0.771 mol of CF from the…

A: moles of CF4 =0.771 mol ∆H = 141.3 kJ /mol

Q: 3. Predict the products o 910 a. CH3CH₂-C-CI

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Q: 3. How many grams of NaOH are needed to prepare 500 mL of 0.125 M NaOH? Molar muss 39 908

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Q: Which of the following can behave as Bronsted-Lowry bases in aqueous solution? H2PO4- NaOH Ba(OH)2…

A: A species which can accept a proton called Bronsted -Lowry base  e g. Cl-, Br-

Q: AICI 3 awa NO₂ NO₂ a) Give two reasons why the above reaction does not occur. b) Draw a series of…

A: The question is based on organic reactions.     we need to identify the product formed and explain…

Q: H₂SO4, H₂O, HgSO4 PCC, CH₂Cl2 1) 03:2) DMS 1) R₂B-H 2) H₂O2, NaOH

A: Given Reaction-: WE have to find X here

Q: D. Post Laboratory 1) A student weighs 0.347 g of KHP on a laboratory balance. The KHP was titrated…

A: The question is based on the concept of titrations. we need to identify the error in titration and…

Q: 2. NaOH is commonly used to produce paper, dyes and soap. Calculate the mole fraction of NaOH in a…

A: Since each question is different, we request you to upload two questions differently as we solve…

Q: Draw a structural formula for the product of the reaction shown. CH3 . CH3 • Use the wedge/hash bond…

A: The given reaction is the Diels-Alder reaction between diene and dienophile. Diels-Alder reaction is…

Q: Complete the mechanism for the given reaction by adding the missing curved arrows. Step 1: Add…

A: We have to draw the curved arrow to complete mechanism.

Q: Beaker 0.00200 M Fe(NO3)3, mL 0.00200 M NaSCN, mL total volume, mL 1 3.000 2.000 10.00 2…

A: Molarity is a method of expressing concentration of solution. we need to calculate concentration of…

Q: Which of the following could enter into H-bonding interactions with water? (Select all that apply.)…

A: We know that, hydrogen bonding or H-bond is an interaction formed between the hydrogen atom and a…

Q: A 1.33 L buffer solution consists of 0.263 M propanoic acid and 0.198 M sodium propanoate. Calculate…

A: Volume of buffer solution = 1.33 LConcentration of propanoic acid = 0.263 MConcentration of sodium…

Q: Based on Beer's Law (A 1) for a 4.1x10-4 M solution which gives an absorbance of 0.354. ebc), what…

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Q: If a peak (transition) in the IR spectrum of a compound is observed at 1650 cm for the C-N moiety,…

A: We have find out the bond strength of C=N.

Q: Convert 15 mg/L bicarbonate, 5 mg/L flouride and 35 mg/L magnesium to [meq/L] and [mg/L as CaCO3].

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Q: Calculate the PH and POH for a .008 Moles solution of HC2H3O2  and .01 Moles in KC2H3O2

A: Answer: Buffer solution is a type of solution that resists the change in its pH on adding small…

Q: When 22.0 mL of a 7.86X 10^-4 M ammonium carbonate solution is combined with 25.0 mL of a 1.44…

A: Answer: Precipitation of a sparingly soluble salt takes place when value of reaction quotient Q…

Q: student was calculating k c for Trial 5. If the reaction follows Pathway 2 (formula below), what is…

A: The reaction follows Pathway 2 (formula below), what is the value of K if the initial concentration…

Q: What change, if any, would you expect if the aromatic substituents were in the meta position, rather…

A: Benzyl alcohol with para-substituted aromatic groups(para chloro,para methoxy,para methyl), the…

Q: The buffer solution is 0.010 M HAc and 0.010 M NaAc. Calculate the buffer capacity, β, of the…

A: This problem is based on buffer solution. The pH of buffer solution is determined by Henderson…

Q: 8. The energy difference between the a and 3 spin states for an 'H nucleus is the external magnetic…

A: The question asks about the relationship between the energy difference between the spin states of a…

Q: 2) A 35 m long gas pipeline made from Schedule 40 PVC pipe that is 3.25 cm in diameter is used to…

A: Given ,    Length of Pipe = 35 m Diameter , d = 3.25 cm Temperature , T = 25 °C=(25+273)K=298 K…

Q: 3) A paintball gun's air-tank can handle 3700.0 psi (25511 kPa) until the seal breaks. If the…

A: Given , Maximum handled pressure = 3700 psi

Q: 1. If an acid has a aka value of 4.2x10^-7, what does this mean in terms of the strength of the…

A: Ka value can be used to estimate strength of an acid. If Ka value is high (and pKa value is low),…

Q: Calculate the molar solubility of aluminum hydroxide, Al(OH)3, in a 0.015-M solution of aluminum…

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Q: What is the molarity of a 25.0% (v/v) aqueous isopropyl alcohol solution? The density of isopropyl…

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Q: The aluminum in a 1.200-g sample of impure ammonium aluminum sulfate was precipitated with aqueous…

A: Answer: (a) % NH4Al(SO4)2 = 77.56 % (b) % Al2O3 = 16.675 % (c) % Al = 52.97 %

Q: A saline solution used in intravenous drips for patients who cannot take oral fluids contains 0.92%…

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Q: Select the reagents needed to effect the transformation from the carboxylic acid to the aldehyde.…

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Q: Peer Leader: Date: For all problems involving calculations, show your work. Carry the units through…

A: “Since you have posted multiple questions, we will provide the solutiononly to the first question as…

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.