1. Set up and explain how to solve a problem according to the GUESS method (no calculation)

Q: Draw the reactant of the following reaction sequence that would give the product shown as the major…

A: reaction is given below

Q: Consider the following balanced reacti 2 A2 + 3B -C2 +2 D What is the enthalpy of reaction if the…

A: Given data Compound Standard enthalpy of formation ∆Hf° (KJ/mole) A2 13.78 B -19.81 C2 0.00…

Q: 3K(s) + Al³+ (aq) → 3K+(aq) + Al(s) Zn(s) + Cu²+ (aq) → Zn²+ (aq) + Cu(s) 2Cr(s) + 3Zn²+(aq) → 2Cr+…

A: Since you have posted questions with multiple subparts, we will solve the first three sub parts for…

Q: One of the reactions that occurs in a blast furnace, in which iron ore is converted to cast iron, is…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: Question 2 Assume that an element's atomic number is 84. What is the most probable distance of the…

A: Radius of Bohr's first orbit is: r=n2h2ε0πmZe2 Where, r= radius of Bohr's orbit n= number of shell…

Q: Question 5 What is the best amount (in mol) of OH¯ used at the 2nd stoichiometric point of tl…

A: Diprotic acid is one which can release 2 hydrogen ions of a molecule in aqueous solution.…

Q: What would be the major product for the following reaction? H2SO heat

A: Sulphuric acid, H2SO4 is an acid that acts as dehydrating reagent, that is, it removes water from…

Q: lodide Titrations Which of the following statement(s) regarding the triiodide standard used in…

A: Solution :  Iodide titration defined as that titration where one oxidizing agent liberates iodine…

Q: Q1. What is the elationohip of pair of fatowing? e enantiomets / diastereomeis / constitutianal,…

A: Enantiomers are a type of stereoisomers which are mirror image to each other. Diastereomers are a…

Q: b. Draw and name the structures of possible geometric and optical isomers of the cobalt complexes…

A: Isomer are those who have same molecular formula same but different structural formula. If two…

Q: For the following process, does entropy increase, decrease or remain the same: CacO3 (s) --> CaO (s)…

A: Thermodynamics is the study of flow heat in the system. The entropy is a thermodynamic quantity that…

Q: Ethers can often be prepared by Sy2 reaction of alkexide ions, RO, with alkyl halides. In each case…

A: The above two ethers will be prepared by the following reactants.

Q: Br2 А + В + С hv NBS A + B hv (i) Draw the structures for A and B, given that B is the thermodynamic…

A: The alkene double bond has available pie electrons which makes it a nucleophile. Alkenes undergo…

Q: Q14. Give the product of the following reaction sequence. 1) LIAIH4 (excess) 2) H20 3) НBr

A: The formation of ethanol and phenol using LiAlH4 and water is shown below.

Q: What is the molar solubility of in the presence of Agl (Ksp = 8.3 x 10 n the presence of 0.05 M…

A:

Q: 10. Five samples of copper, aluminum, iron, gold and silver are at the same initial temperature with…

A: To Calculate the amount of heat absorb by using formula, By formula, q = m. c . ∆T or q = m. c…

Q: A voltaic cell is constructed in which the following cell reaction occurs. The half-cell…

A: In the electrochemical cell, there are two compartments known as anodic half cell and cathodic half…

Q: In Bohr-radius units, which of the following sets are the first four orbital radii of the electron…

A: To find: The first four orbital radii of the electron in the Bohr model.

Q: Fullerenes were discovered earlier than graphene and led to the Nobel Prize in Chemistry for Curl,…

A: All matter can be classified as solid, liquid, and gases mainly. In these physical states of matter,…

Q: 5. Draw the products and a mechanism for the following reaction. CO2H H* + CH3CH2OH

A: Esterification: The reaction of carboxylic acid with an alcohol in the presence of acid catalyst…

Q: 4. Write the product(s) for the following condensation reaction: HO-P NH OH ОН ОН

A: This condensation reaction is an example of the formation of nucleotide. The reaction involves the…

Q: At least Overall Bond Angle ONE polar polarity Number of Electron (0) Molecular bond? (Enter P for…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Use the observations about each chemical reaction in the table below to decide the sign (positive or…

A: The reaction is spontaneous when – ΔG is negative ∆G = ∆H - T∆S

Q: A student reacts benzene, C6H6, with bromine, Br2, to prepare bromobenzene, C,H5Br, and HBr. C6H6…

A: Moles of C6H6 = 35.2/78 = 0.4513 mol Moles of Br2 = 67.9/160 = 0.4244 mol  By stoichiometry of…

Q: 3. Suggest syntheses of the compounds below using the indicated starting materials and other normal…

A: Acetoacetic ester is an ester compound. It contains an active methylene group between the two…

Q: Calculate the value of E°cell for the following reaction: 2T13+ (aq) + 3Ca(s) → 2TI(S) + 3Ca2* (aq)…

A: Oxidation is the loss of electrons while reduction is the gain of electrons. The standard oxidation…

Q: Directions: For the following problems, show all work including the correct units throughout the…

A: A balanced chemical equation can be used to identify the number of moles of reactants that react…

Q: 2. A spectrophotometric method for the quantitative determination of the concentration of Pb in…

A: Given:-             To find the concentration of the lead in the blood sample and its equation is:…

Q: Imagine a ere there are three spin states for the electron instead of two. The number of subshells…

A: If there are three possible spins, each orbital will contain 3 electrons instead of two electrons.…

Q: Which is the major product in each of the following? CH, CH, CH, or or A OH он в ) CH,CHC-CHOI,C,…

A: In this problem we will discuss the following reactions: Addition of HBr on cycloalkene. Formation…

Q: Which of the following structures represents trans-1,3-dimethylcyclohexane? 2 3 а. 1 b. 2 с. 3 d. 4

A: Cis and trans are geometrical isomers. The isomer is said to be cis if the two same groups are…

Q: For the following process, does entropy increase, decrease or remain the same: H20 (s) --> H2O (1) O…

A: Entropy is a measure of randomness, disorder of a system. Entropy, the measure of a system's thermal…

Q: rrange the following compounds in the increasing order of reactivity towards Ch/Fecla 1. phenol 2.…

A: The given reagent is Cl2/FeCl3 which is known as a chlorinating reagent. Ferric chloride is a lewis…

Q: Grade This Exercise Determine the pH of a 0.17 M aqueous solution of ammonia. <b(NH3) - 1.8x10-5.…

A: The pH of a solution represents the concentration of the hydrogen ions.the aqueous solution of…

Q: Triton X-100 is a liquid, detergent with a molar mass of 647.0g/mol and a density of 1.07g/ml. What…

A: Molarity of the solution is equal to the number of moles of solute present in one liter of the…

Q: Please answer very soon will give rating surely

A:

Q: If 2.900 moles of water react completely, according to the following equation, what is the total…

A: solution

Q: A solution contains 0.035 M Ag+ and 0.047 M Pb²+. If you add Cl", AgCl and P6CI, will begin to…

A:

Q: Practice Exercise 6. Will aluminum metal displace Cu²+ ion from aqueous solution? Does a spontaneous…

A: The standard electrode potential of a cell E°cell can be calculated by identifying the oxidation and…

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.