Q/ If the intensity of the transmitted ray is equal to 0.12 of the intensity of the incident ray on a solution in a cell thickness of 2 cm and the molar absorption coefficient is 0.35 L.Mol-1.cm-1, calculate the absorbance and concentration of the solution

Q: Aluminum sulfate (Al2(SO4)3) is a chemical compound that is soluble in water. The compound is mainly…

A: Since, Molarity is the number of moles of solute dissolve in one litre of the solution. Thus,

Q: Mass of evaporating dish in grams is 138.29 what's the mass in kg lbs tons dg

A: Unit conversion means convert one form of unit in to another. In the given question it has been…

Q: 3.2) Draw an "energy level diagram" for a nitrogen atom. 'N 4s ण्ड पpx पक्ष पर v रड 15 ut 3PY 3RN 4…

A: Energy level diagrams of atoms show the distribution of electrons in different energy levels or…

Q: Which reaction yields hexan-1-ol? Select one: OA. OB. O C. O. D. ~ OH 1. LIAIH₁, THF 2. H₂O NaBH₁…

A: This question is related to reduction of aldehydes, ketones and carboxylic acids. LiAlH4 and NaBH4…

Q: Ethylene glycol (C2H6O2), also known as antifreeze, is a liquid coolant added to  water in vehicle…

A: Answer:- This question is answered by using the simple concept of calculation of volume using…

Q: A chemist prepares a solution of zinc oxalate (ZnC₂04) by measuring out 5.78 mg of zinc oxalate into…

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Q: (ii) Calculate the enthalpy change for the dissolution of (NH)₂SO (s) using the enthalpy of…

A: Dissolution is a physical process in which a solid, liquid, or gas dissolves in a solvent to form a…

Q: Which number of bonds per atom is INCORRECT? a. F - 7 bonds b. H - 1 bond c. C - 4 bonds d. N - 3…

A: Since, Valency of atom determine that how many bond present per atom of the compound. Then,

Q: Gaseous ethane (CH,CH₂) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide (CO₂)…

A:

Q: 2. Suppose a certain small bird has a mass of 30 g. What is the minimum mass of glucose that it must…

A: Answer: This question is based on conservation of energy where energy generated during the…

Q: Levodropropizine(C13H20 N2O2) belongs to the class of medication called 'cough suppressants'…

A: The mass of solute in mg present in a one-liter solution is known as parts per million…

Q: (21) Rank the following compounds in order of their expected reactivity toward SN2 reaction: CH3Br,…

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Q: A 0.125 g sample of an unknown liquid is vaporized and the vapor is stored in a 35.2 mL container at…

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Q: An IR spectrum, a ¹3C NMR spectrum, and a ¹H NMR spectrum were obtained for an unknown structure.…

A: Proton-NMR gives the complete information for the structure determination. From the position of…

Q: Compare sodium with aluminum. Which one would you predict to have a higher effective nuclear charge?…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 45. A carnot takes up 90 J of heat from the source kept at 300K. The correct statement among the…

A: 45) Carnot engine is a reversible engine that operates between two temperatures T1 (source) and T2…

Q: A popular blue colored medicine usually used to treat symptoms of flu has been analyzed and found to…

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Q: What is the molar mass of an unknown gas with a density of 2.10 g/L at 1.00 atm and 25.0 °C?

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Q: Initial Knowledge Check A certain drug has a half-life in the body of 1.5 h. Suppose a patient takes…

A: Given data is  Half life of the drig = 1.5 hours  Mass of the pill taken by the patient= 50.0 mg…

Q: Calculate by % mole each of the elements present in ethyl alcohol.

A: The molecular formula of ethyl alcohol (also known as ethanol) is C2H5OH. By calculating the atomic…

Q: Can you help me the model of the atom with draw a carbon atom? Also you help me with draw an energy…

A: A question based on model of atom. A specific question about model of Carbon atom is to be…

Q: (c) On Fig. 2.3, draw a line and an eye to show clearly the line of sight required to read the…

A: C) To observe the reading of water level in a measuring cylinder, place the measuring cylinder on a…

Q: A scientific theory is a tentative explanation for an observation.   Question 1 options:   True…

A: Significant numbers rule -  During addition or subtraction, the answer is rounded to least number of…

Q: A. Complete the equations below. Take note that the atomic mass in the equations must be rounded off…

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Q: Please solve these two questions by drawing one stereoisomer in the box + fill the checkboxes…

A: We have find out the major products of the given reactions.

Q: Q1/ Select the correct choice:    1. The process of removing an electron from an atom is called…

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

Q: Consider the heating curve provided for 1.00 mole of a substance that begins as a solid at -14.8 °C…

A: The initial temperature of the solid is = -14.8oC The final temperature of the solid is = 4.1oC…

Q: An ethylene glycol solution contains 28.2 gg of ethylene glycol (C2H6O2)(C2H6O2) in 92.8 mLmL of…

A: Answer: When a non-volatile solute is added in a solvent, it causes a depression in freezing point…

Q: 7) Using the ranking from above, explain using the respective compounds conjugate base to explain…

A: This question is based on Bronsted - Lowry conjugate acid base theory.

Q: Model of the Atom Check your current model: Draw a carbon atom.

A: A carbon atom has 6 protons ,6 neutrons and 6 electrons

Q: 6. Below you will find experimental data for a magnesium sulfate salt. Use the data to answer the…

A: Answer: To analyze the water molecules present in the crystal structure of magnesium sulfate it's…

Q: Name both compounds

A: Given : structure of molecules

Q: Question 4: In this question use the following equation to do the calculations in the questions…

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Q: Using the provided table and the equation below, determine the heat of formation (in kJ/mol) for…

A: Standard enthalpy for a reaction is equal to the,∆H°Rxn = { ∆H°f (Products)} -{ ∆H°f (Reactants)}…

Q: What is the temperature (in K) of 0.380 mole of neon in a 2.00 L vessel at 4.68 atm?

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Q: 9. The molecular weight of EDTA is 292.24 g/mole. How would you make 300 mL of a 0.5M solution of…

A: Answer: To make the 300mL of 0.5M solution of EDTA we need to know the mass of EDTA required.…

Q: The image below shows a portion of a ¹H NMR spectrum (ppm). Choose the partial structure that best…

A: In the given problem we need to predict the partial structure of the molecule by using the 1H NMR.

Q: 21. How many total atoms are present in 1.60 mol of sulfur dioxide? A) 9.63 X 1023 B) 1.54 X 1023 C)…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: d) H₂N H CH3 CH3 CI H Draw the Dash-Wedge Formula

A: The given diagram is Newman projection which is first convert to Sawhorse projection then to dash…

Q: O H H3C OSH OCH3 нох HCOOH 50% Тос OCHO

A: This is fragmentation and rearrange reaction.

Q: h) CHCI3 KOtBu 1 enantiomer (1 chiral compound) 1:1 mix of enantiomers mixture of diastereomers…

A: MIXTURE OF DIASTEREOMER.

Q: Draw the Lewis structure (line-bond structure) for the skeletal structure shown below

A: A question based on molecules. An organic molecule, whose structure is to be written in the form of…

Q: How do I calc the formal chargers of nitrene, oxonium ion, carbene, acetylide

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Q: An unknown compound contains only CC , HH , and OO . Combustion of 9.00 g9.00 g of this compound…

A: The mass of the organic compound is = 9.00 g The mass of carbon dioxide formed is = 20.5 g The molar…

Q: 6. Use VSEPR to predict the geometry and bond angle for each bolded atom in the following…

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Q: Aluminum sulfate (Al2(SO4)3) is a chemical compound that is soluble in water. The compound is mainly…

A: The mass of aluminum sulfate needed = 172.644 g

Q: Give the IUPAC name for the structure below. pa OH

A: The answer for this problem is provided below in great details within the attached figure.

Q: Complete following reaction. Be sure to name the reactant(s) and product(s), condition(s), catalyst…

A: Organic reactions are those in which organic reactant react to form organic products. In the given…

Q: solution A sodium sulfide silver nitrate nickel(II) acetate solution B copper(II) chloride potassium…

A: Some combinations of ionic compounds will not soluble in water. If the mixture of the solutions…

Q: calculate the minimum mass (in grams) of propane, C3H3(g), that must be combusted to provide the…

A:

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.