ne concentration in um

Q: Draw a mechanism: OH OH heat LOH

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Q: The amount of Fe (AW 55.85) in a 0.4891-g sample of an ore was determined by a redox titration with…

A: During the titration, the titrant is reduced from Cr2O7-2 (each chromium oxidation state=+6) to Cr+3…

Q: QUESTION 9 Click the peak(s) that corresponds the aromatic hydrogens. 3|0 40 6 (ppm) O…

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Q: How many equivalent point(s) is (are) present in the titration curve? What is (are) the pH value(s)…

A: Maleic acid is a dibasic weak acid and neutralized by strong base, NaOH…

Q: Identify the LUMO in the MO diagram of F, (shown below). A) o (2s orbitals) B) o (2pz orbitals) C)…

A: LUMO is the lowest unoccupied molecular orbital. That means molecular orbital which is empty and…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 182.0 mg sample…

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Q: What are the full, ground‐state electron configurations for,  a. C b. Cr c. Rh

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Q: The graph below shows the distribution of molecular velocities of a gas at two different…

A: Relation between temperature and velocity of gas    Vrms = root mean square velocity  R = universal…

Q: 1. How can you identify the solute and the solvent in a solution?

A: The solution is formed by two or more components.  There homogenous solution and heterrogenous…

Q: Draw the starting material that would efficiently generate the products shown. NABH, CH;OH HO HO

A: Sodium borohydride, NaBH4 is a reducing agent and it can selectively reduce a carbonyl functional in…

Q: When water is boiled, it is converted into a gas. When gasoline is burned, it too is converted into…

A: To solve the question we have to know the difference between boiling and burning. Then we will get…

Q: Part D an isotope with a mass number of 52 and 28 neutrons Express your answer as an isotope. ΑΣφ ?…

A: Write the symbol of the given isotopes ----

Q: Solution: Kso=1.41-10-11 The resistance of a saturated solution of PbSO4 (very insoluble salt) at…

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Q: A Zn wire and Ag/AgCl reference electrode saturated with KCI (E = 0.197 V) are placed into a…

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Q: SHOW SOLUTION_PHYSICALCHEMISTRY: 4.4 kg of carbon dioxide gas, CO2 , undergo isothermal expansion at…

A: The answer of the given question is -227 kJ. But there is no option of -227 kJ  (When gas expand the…

Q: Calculate H30| of the following polyprotic acid solution: 0.130 M H2CO3 (Kal = 4.3 x 10 7, K2 = 5.6…

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Q: How many grams of chromium metal will be deposited from a solution that contains Cr ions if a…

A: By faraday's law of electrolysis, m=ZIt Here m is the mass of Cr3+ in grams. Z is electrochemical…

Q: In a complexometric titration experiment: Determination of Water Hardness, solve for the missing…

A: Each mole of Ca2+ reacts with 1 mol of EDTA. Also, Moles =  Mass / Molar Mass

Q: 3. Why did a mixture of 2.00 mL of pH 7.00 phosphate buffer, 0.900 mL of deionized water and 0.100…

A: 3. p-nitrophenyl acetate? in solution yields a light yellow to yellow solution?. This has a…

Q: / minutes

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Q: A 28.9 mL aliquot of hypobromous acid that has a concentration of 0.655 M will be titrated with…

A: pH of a solution before the end point can be calculated using Henderson hasselbalch equation.

Q: Caper Give the starting alkene and regents needed to make the epoxide shown.

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: 9. What is the major Hofmann elimination product formed from the following amine? CH3 CHs. NH2…

A: Explain : Hoffmann elimination Reaction :         Hofmann elimination is an elimination…

Q: QUESTION 5 When 1.7905 liters of a 8.2447 M NH3 solution is diluted to make a 1.9303 M solution, how…

A: Given: The initial molarity of the solution = 8.2447 M The initial volume of the solution = 1.7905 L…

Q: Hydroboration, hydrogenation, catalytic hydrogenation, radical addition, oxidation, oxidation…

A: In a normal electrophilic addition reaction , substrate is attacked by electrophile or electron…

Q: Determine the chemical formulas for the two compounds. OH B A A: B: Based on their structures, which…

A: The chemical formula and boiling point of the above compounds are given below

Q: 1. Hydrogen is an example of a(n) Select only the best answer: Os-block element Op-block element…

A: (1) S-block (2) degenerate (3) S

Q: When the Cu2+ concentration is 1.47 M, the observed cell potential at 298K for an electrochemical…

A: Nernst equation for electro chemical cell at standard condition is as follows, Ecell=…

Q: Process Questions: 1. What is the importance of stoichiometry? What role do stoichiometry play in…

A: 1. Stoichiometry is important because it defines the relationships between the reactants and…

Q: Enumerate atleast three examples each for a spotaneous reaction and a nonspontaneous reaction

A: Spontaneous reaction : These are the reactions which occur on their own that means no external…

Q: An artifact originally had 16 grams of carbon-14 presentThe decay model A = 16e ^ - 0.0001211…

A: Radioactive decay follows first order kinetics. Initial amount of C-14 present = 16 g Given decay…

Q: 1.) Compare the relative atomic radius of iron and carbon. Fe: С:

A: Since you have asked multiple questions, we will solve the first one for you. For remaining…

Q: pha particle emission of an element, forming 20BI 83Bi

A: Alpha particle is helium nuclei having 2 atomic number and 4 atomic mass. -> Hence, due to alpha…

Q: Assign oxidation numbers to each element and balance the equation in an acidic solution.  MnO4- +…

A: The sum of the oxidation numbers of any species should be equal to the net charge on that species.

Q: 24.44 Identify the functional groups in each of the following compounds: (a) CH,CH,CH,CH;CH,CH3 H3C…

A: The given structures are,   and

Q: QUESTION 8 Click the peak that corresponds to the carboxylic acid carbon. H. 0. 1 6 (ppm) Selected…

A: The assignment of C-13 peaks for benzoic acid is given below

Q: What is the pH of A 50.0 mL 0.0250 M NAOH(ag) when mixed with 50.0 mL 0.0250 M Ba(OH)2(ag) diluted…

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Q: A sample of 0.892 g of potassium chloride (KCI) is dissolved in 54.6 g of water. What is the percent…

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Q: Part C For 500.0 mL of a buffer solution that is 0.185 M in CHCH,NH2 and 0.135 M in CH3CH2NH3CI,…

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Q: 2每張試題卷得必填寫(學號)、(姓名) The ethyl acetate concentration in an alcoholic solution was determined by…

A: Question 11 is not related with the given problem.

Q: y amperes a

A:

Q: How many grams of iron metal will be deposited from a solution that contains Fe ions if a current of…

A: Given-> Current (I) = 0.640 ampere Time(t) = 32 minutes =32×60 second = 1920 second

Q: Write the condensed (noble-gas) electron configuration of ruthenium.

A: Write condensed electron configuration of Ruthenium ?

Q: prational temper aracteristic rota lculate the parti tational and vibr andard molar er

A: Given that characteristic vibration temperature is= 3084K  Thus ,vibration partition function of CO…

Q: A sample of 30.0 mL of krypton gas, Kr, is at 756 mm Hg and 25.0°C. What is the new volume if the…

A: Given :- initial pressure = 756 mm Hg  Initial volume = 30.0 mL  Initial temperature = 25.0°C  Final…

Q: Alkynes react with one equivalent of acid to create a carbocation for Markovnikov addition. True or…

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Q: Battery Cathode answer the following questions for each term: What familiarity and prior knowledge…

A: As per the rules, 3 subparts of the first question can be answered. So the first three questions for…

Q: A sample consisting of 2.5 mol of perfect gas molecules with Cp,m = 29.4 J K –1 mol–1 is initially…

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Q: Which of the following is INCORRECT? A. HCO3 : Amphoteric B. H20 : Amphoteric C. H2PO4 :…

A: ->Amphoteric species can act as acid and base both i.e. it can loose and accept H+. ->Bronsted…

Q: Write the condensed (noble-gas) electron configuration of barium.   Write the condensed (noble-gas)…

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