A sample containing an unknown concentration of FeCl3 is measured to have an absorbance of 0.43 at 334 nm in a 1.0 cm cuvet. What is the molar concentration of the solution e = 1925.93

Q: Determine whether the solutions are acidic, basic, or neutral. Drag the appropriate items to their r...

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Q: a ketone and an ether?

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Q: Nitrogen (N,) gas and hydrogen (H,) gas react to form ammonia (NH,) gas. Suppose you have 13.0 mol o...

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is gi...

Q: Write the molecular equation for the reaction of each metal with hydrochloric acid (states of reacta...

A: • Molecular Equation : A molecular equation is a chemical equation in which ionic compounds are expr...

Q: When 2,400 mg zinc is added to hydrochloric acid, 450 mL of hydrogen gas forms at a temperature of 3...

A: To solve this problem we will use the given balanced chemical equation and ideal gas equation .

Q: Determine the pressure (in mmHg) for the nitrogen gas sample that is  collected when 53.0 g of NaN3 ...

A: given :-  an unbalanced equation :- ___NaN3 (s) → ___Na (s) + ___N2 (g)  mass of NaN3 = 53.0 g  temp...

Q: What is the correct relationship between Ka and Kb for a weak acid and its conjugate base (temperatu...

A: We know, Ka × Kb  = Kw Kw is the ionisation constant of water.

Q: H2SO4 CH;CHCH2OH CH3 H2SO4 2 CH,CHCHCH,CH3 CH3 Majo CHaCH-CHCH3 +2KOH Br Br

A: ->H2SO4 is a dehydrating agent which form alkene. ->Alco KOH is used for elimination reaction....

Q: You would like to make 3L of 0.10 M HCl(aq) solution from a stock solution with a concentration of 2...

A: • The values provided in the question are:-       i) Initial concentration of HCl solution, M1 = 2.4...

Q: NO2 Et3N N=C=0 Ph CO,Me Meo,c

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Q: The Ka for HF is 7.0 x 10-4 Kb for the fluoride ion is

A:   at 25°C  Ka  x Kb  = 10-14  Given that  Ka = 7 x 10-4  HF is weak acid and its conjugate base is F...

Q: What major product (from Figure #8) results from the following reaction (from Reaction #8)? Reaction...

A: It's an nucleophilic attack by the grignard reagent to the carbonyl centre,and undergo cyclisation a...

Q: How many MOLECULES of boron trifluoride are present in 2.32 moles of this compound? Answer: Molecule...

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Q: Write an equation to show how HC204¯ can act as an acid with HS¯ acting as a base. Express your answ...

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Q: An SN1 reaction is shown in the box; the reaction profile for this reaction is shown below. Identify...

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Q: You own a pharmaceutical company that is manufacturing the experimental drug inhaler for COVID-19 di...

A: The production yield depends on the environmental conditions and use of suitable catalyst which decr...

Q: An engineer is preparing an experimental gas fuel mixture for a rocket launch. There are 5.00 g of h...

A: Here use daltons law of partial pressure. Partial pressure = Mole fraction x total pressure. Here pe...

Q: 1a. How many moles of M9SO, are contained in 50. mL of a 3.0 M solution? 1b. How many grams of CaCl,...

A: Formula of molarity is:-  Molarity = moles ÷ volume(L) 

Q: Decide whether the following molecule presents an S or R configuration for the stereogenic carbon(s)

A: RS nomenclature: The RS nomenclature is an important nomenclature system for denoting the configurat...

Q: Calculate the activity coefficient of K+ in 0.050 M KNO3.

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Q: Consider the titration of 30.00 mL of 0.500 M CH3COOH with 0.500 M NaOH. Assume that the solution wi...

A: Here 30 ml of 0. 5 M CH3COOH is titrated with 0.5 M NaOH solution. We have to find pH at half equiva...

Q: 1. Given the following rate law: rate =k[CHCI;][Clz]/2. a. Write the reaction order with respect to ...

A: The relation between the concentration of the reactants and the rate of reaction is expressed by the...

Q: Liquid octane (CH (CH, CH; reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (Co...

A: The given data is as follows: The mass of octane = 60.5 g The mass of oxygen gas = 424 g The theoret...

Q: Gaseous butane (CH;(CH,), CH, reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide ...

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Q: Gaseous methane (CH,) reacts with gaseous oxygen gas (o,) to produce gaseous carbon dioxide (Co,) an...

A: Given, Mass of methane is 0.48g Mass of o2 is 3.3g Actual yield of carbon di oxide is 0.632g

Q: Aqueous hydrochloric acid (HC1) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium ...

A: Given data : Mass of HCl = 20.0 g Molar mass of HCl = 36.46 g/mol Mass of NaOH = 12.3 g Molar mass o...

Q: 3. Draw the electrochemical cell for the following reaction: Alo + OCT ( +HOmCl + OH() + Al" ) a) Sh...

A: An Electrochemical cell is a device or mechanism that can either generate Electrical energy from che...

Q: What to do: For each equation and reactant shown, identify the stoichiometric ratio and calculate th...

A: stoichiometric Ratio =number of mols of product produced number of mols of reactant reacts 

Q: OH 2 cat. Me -0 H;C НО H3C CH3

A: Requirement from question Draw given reaction using any tool: 

Q: Classify each of the following acids as strong or weak. Drag the appropriate items to their respecti...

A: The strong acid are easily dissociates in water and release Hydronium ion along with their conjugate...

Q: Balance the following chemical equation for the reaction of hypothetical elements X, Y, and Z. On yo...

A: ____X3Y6Z2 + ___Z2  → ______Z2 + ___XY2

Q: What volume of hydrogen gas is evolved from a reaction between 0.69 g of  Na and water? The gas is c...

A: Using stoichiometric ratio of balanced reaction we can determine how many moles of H2 produced after...

Q: An aqueous solution at 25 °C has a pH of 3.79. Calculate the pOH. Be sure your answer has the correc...

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Q: Gaseous ethane (CH;CH;) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,) ...

A: Given Data :  1. Mass of ethane = 0.90 g  2 . Mass of oxygen gas = 2.7 g  Molar mass of ethane = 30....

Q: CO,Me OSIME, CO,Me Br A Br

A: Concept ; (3,3) sigmatropic reaction or rearrangement.  In this reaction the sigma bond between the ...

Q: Indicate whether each of the following is neutral, acidic, or basic using the dropdown on the right....

A: Note : As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost...

Q: Nitrogen dioxide is one of the many oxides of nitrogen (often collectively called "NOx") that are of...

A: Given,  Volume of the container = 25 L  Initial moles of NO2 = 8.8 mole  Equilibrium moles of NO2 = ...

Q: How many grams of Ca(NO3)2 can be produced by reacting excess HNO3 with 6.55 g of Ca(OH)2?

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Q: Common aspirin is acetylsalicylic acid, which has the structure shown below and a pKapKa of 3.5. Ca...

A: Given data : Mass of Aspirin = 670 mg water = 10 ounces pKa of Aspirin = 3.5 Molar mass of Aspirin =...

Q: Each row of the table below describes an aqueous solution at about 25 °C. Complete the table. That i...

A: pH = -log [H3O+]  [H3O+]  = 10-pH   

Q: Hydrogen sulfide and oxygen react to form sulfur dioxide and water, like this: 2H,s(g)+30,(g) → 2s0,...

A: Given the reaction under consideration, 2H2S + 3O2 ---> 2SO2 + 2H2O We have to determine in which...

Q: Ammonium perchlorate (NH,CIO,) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts wi...

A: given :-  ammonium perchlorate → nitrogen gas + oxygen gas + chlorine gas + water  mass of ammonium ...

Q: Select the strongest acid О нс Он O HBr О НF

A:   • The given acids are-        HCl , HI , HBr and HF    • We need to select the strongest acid.

Q: How many stereoisomers are possible for an aldopentose?

A: Stereochemistry is branch of chemistry in which we deal with arrangement of atoms in molecules.

Q: The following reaction is spontaneous only at temperatures in excess of 1100 K. We can conclude that...

A: Given that, The reaction is spontaneous at the high temperature of 1100 K. We can conclude that, 

Q: In the United States, drinking water cannot contain more than 5 x 10- 8 grams of arsenic per gram of...

A: Parts per million is used when the concentration of solute is very small.  1 ppm of solution contain...

Q: Match the correct response When the pH of a solution rises what happens to the followings [H3O+] A. ...

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Q: Calculate the entropy change of the surroundings when 1 mol of a perfect gas expands isothermally (a...

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Q: Nitrogen and oxygen react to form nitrogen monoxide, like this: N2(9)+O2(9) → 2 NO(g9) The reaction ...

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Q: Draw the major product of this reaction. Ignore inorganic byproducts.

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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.