please help me wt the ff: a. Calculate the concentration (g/mL) of acrolein [CH2=CHCHO] that should be prepared in orderto give an absorbance of 0.8 at 217 nm ( = 16,000). b. Propose a structure for C7H4O2Cl2, as an acid with λmax 242 nm. c. Describe briefly the steps in obtaining the spectrum of a sample using Thermo Scientific Nicolet IS5 FT-IR Instrument starting from loading the solid and liquid samples.

Q: How many moles of electrons are required for 7.2x10-2 mol Ni? X mol e-

A: Given:: number of moles = 7.2×10-2 mol  Moles of electron = ?

Q: The "actual" free-energy change, AG, for the oxidation of NADH under aerobic conditions is -50.9…

A: Given: Actual free energy ∆G = -50.9 Kcal/mol = 213.78 KJ/mol The reaction governing the phenomenon…

Q: Ph of 0.18molL^-1 of CH3NH2

A:

Q: When a monosaccharide is oxidized by an oxidizing agent such as Benedict's reagent, a sugar acid is…

A:

Q: Why do we need to study organic chemistry? Why do we need to study reactions of organic compounds?

A: Hii there, As there are multiple question posted. we are answering first question. If you need…

Q: Part A A 100.0 mL sample of 0.180 M HCIO, is titrated with 0.270 M LIOH. Determine the pH of the…

A:

Q: Balance the given equation using the half-reaction method. Identify the ion or element that gained…

A:

Q: What is the bond order of N, and N,? Which of these species has a longer bond? Species I Species 2…

A:

Q: Chemistry The following redox reaction is known to be used for metabolic energy by microbes living…

A: Split the equation into oxidation and reduction half. Balance bothe the reaction halves. Add them…

Q: Which of the following reactions is an example of heterolytic bond breaking? CH 3 CH 3 a. CH3 CH 3…

A:

Q: Intermolecular Forces 1. Encircle/Write the species that can form hydrogen bonds with water?…

A: Here we are required to find the species that can form hydrogen bond with water.

Q: A certain solution is 0.010 M in Zn2* and Fe2*. If the hydrogen sulfide solution is saturated, that…

A: Solution- Data given- Zn2+ and Fe2+ conc. is 0.010 M, [H2S] = 0.30M. Ksp for FeS = 6 x102 and for Zn…

Q: POST-LABORATORY QUESTIONS Due after Laboratory Experiment 1. Thiocyanate, SCN;, has three possible…

A: Formal charge: We can calculate an atom's formal charge using the following equation FC = VE - [LPE…

Q: Consider the following electrochemical cell in, for which Ecell =   = 0.18 V at 80C:   Pt | H2(g) |…

A: Given, the cell notation: Pt | H2(g) | HCl(aq) || AgCl(s) | Ag(s) The overall reaction: H2(g) +…

Q: 39. Which of the following should not be included in the equilibrium constant expression the…

A: Given following equilibrium reaction -  NH3(aq) + H2O(l)  <----> NH4+(aq) + OH-(aq)  When  we…

Q: HBr excess or HBr excess

A:

Q: 1. Circle the most acidic proton in the molecuie? Ph он о HO, он

A:

Q: Determine deltaS in J/K of the reaction NO (g) + 1/2O2(g) --> NO2 (g) So(NO) = 205.75 J/mol K…

A: Given, NO(g) + 1/2O2(g) --> NO2(g) S°(NO) = 205.75 J/mol K S°(O2) = 204.41 J/mol K S°(NO2) =…

Q: он ČH3

A:

Q: Calculate the probability of finding an electron in a 1s orbital outside the Bohr orbit (ao).

A: We have to calculate the probability of finding an electron in a 1s orbital outside the Bohr orbit…

Q: A student doing the distillation performed in this experiment notices that, while the liquid in the…

A: As per the question asks that boiling temperature is 53 degree Celsius. Thus distillation occurs at…

Q: Но OH FeCl3 + H3C `CH3

A:

Q: what is the effect of temperature on the solubility of solid in liquid?

A: In the present case:  Solute - Solid substance Solvent - Liquid substance.  Solute is mixed into…

Q: 3+ cation, the energies of the valence d orbitals on When a certain strong-field ligand forms an…

A:

Q: If a dose rate from a sample of In-111 was found to be 5.0 x 10-5 ( to the negative 5)mSv per hour…

A: Solution- a dose rate from a sample of In-111 was found to be 5.0 x 10-5 ( to the negative 5)mSv per…

Q: Explain the fuctions of each part of the reflux set-up

A: Reflux setup consist of three parts -- 1) A heating system 2) a round flask 3) a condenser.  It is a…

Q: A. Show the steps of the mechanism socla OH (s) CA)

A: This is Darzen'S reaction ,the mechanism are given below

Q: Given the reaction at the photo, what is the major product?

A: In an aromatic nucleophilic substitution reaction, a nucleophile attacks on the carbon atom of the…

Q: CHEMWORK Assuming that the solubility of PbCl,(s) is 1.6x10-2 mol/L at 25°C, calculate the Ken for…

A: The dissociation of PbCl2 is  PbCl2 =Pb2+ + 2Cl- That is Ksp=[Pb2+][Cl-]2 Given solubility is PbCl2…

Q: Balanced Equation: Osidized: Reduced: 6) H;O: + 10 →r + 0: (acidic solution) Balanced Equation:…

A: Balanced under acidic solution-

Q: Part A A 100.0 ml sample of 0.18 M HCIO, is titrated with 0.27 M LIOH. Determine the pH of the…

A:

Q: Reflection 7 1. What would be the consequences if water becomes a nonpolar molecule? 2. What type of…

A: Water is the most essential unit of life. The properties of water makes it unique and most precious…

Q: [References] CHEMWORK The solubility of Pb(IO3)2(s) in a 4.80x10-2 M KIO, solution is 1.3×10-8…

A:

Q: Determine the oxidation state of the transition metal in each of these coordination compounds.…

A: Since we know that, NH3 , H2O , CO all are neutral ligand...

Q: A chemical engineer is studying the following reaction: 2 NO(g)+2H,(g) –→ N2(9)+2H,O(g) At the…

A:

Q: What is the chemical reaction involved in the synthesis of isoamyl acetate?

A:

Q: c. Over-all dipole Structure 1: Structure 2: H F Structure 3: Structure 4: H. Structure 5: Structure…

A:

Q: To get rid of colloidal precipitate we use either digestion or diverse ion O true O False Increase…

A: To get rid of colloidal precipitate we use either digestion or diverse ion ,this is true

Q: 1) In lecture #9, it was noted that about 20% of the O* atoms produced from ozone photolysis will…

A:

Q: 20. Which of the following statements is true for an electrolytic cell? a. The oxidation occurs at…

A: In an electrochemical cell, the chemical energy is converted into electrical energy and in an…

Q: Exercise 17.117 Part A In analytical chemistry, bases used for titrations must often be…

A: Balanced chemical equation are those in which number of atoms on both sides of equation are equal.

Q: 5. Provide the complete mechanism (arrow, lone pairs, formal charges) for the following…

A:

Q: Given below are condensed structural formulas derived from the same molecular formula (C6H14).…

A: There 5 pairs sturtural isomers

Q: Which process do you choose if the copper ore includes a remarkable amount of precious metals? Why?…

A: Copper has an important use in our daily lives for thousands of years. It is a metal found in its…

Q: ions are then oxidized to Fe3+ by 22.4 mL of 0.01 M K2C12O7. Calculate the percent by mass of Mn in…

A:

Q: Construct a Mg²+/Mg-Ag*/Ag cell with a positive cell potential in the voltaic cells interactive to…

A: Given that, a voltaic cell is Mg2+/Mg-Ag+/Ag. Also, the cell has the positive cell potential, means…

Q: What identification tests can be performed to determine isoamyl acetate?

A: The presence of acetate group in the isoamyl acetate is the key feature to be detected by the…

Q: 9. Synthesize the following compound using a Michael Addition.

A: Concept:  Cross clasien condensation reaction: this reaction involves the enolate of one keton…

Q: pH of blood The following table gives the acid-dissociation constant values, K, for carbonic acid,…

A: HPO42- and PO43- are the conjugate acid-base pair for the 3rd dissociation reaction of H3PO4.  The…

Q: When the following equation is balanced properly under acidic conditions, what are the coefficients…

A: Cl2 + Cu2+ ......> ClO3- + Cu+ At anode, oxidation takes place . And at cathode, reduction takes…

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.