What is the major driving force in chromatographic separation?       difference in affinity with a stationary phase      difference in volatility in liquid phase       difference in ion interaction in gas phase        difference in solubility with a mobile phase

Q: The third law of thermodynamics is defined as     a. the combined mass and energy of the universe…

A: -> at absolute (0K) temperature all the modes of motion stops (no vibration , no translation and…

Q: Which solution has the lowest vapor pressure? 0.30 M Ca(NO3)2 0.40 м С3Н603 0.60 М КСН3СО0 0.20 M…

A: ★ Answer : Correct option is 0.60M KCH3COO.   ★ Solution : Depression in vapor pressure is a…

Q: An electrochemical cell consists of a standard hydrogen electrode and a copper metal electrode. a.…

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Q: Which of the following substituent is a meta-directing deactivator?   a amino group   b…

A: ->Substituents which are electron donating group that are activating group and increases the…

Q: 3. Suggest experimental means by which the rates of the following reactions could be followed. There…

A: In the question it is given to discuss the experimental means by which the rates of the reaction…

Q: Ksp for Fe(OH)3  (Fe(OH)3(s) ⇌ Fe3+(aq) + 3OH-(aq)) is 4.0 × 10-38. In the presence of 0.01 M NaOH,…

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Q: n Mass Spectrometry, what high energy particle is responsible is used to bombard molecule so that it…

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Q: Calculate the pH of a solution after 47.0 mL of 0.500 M NaOH is titrated with 53.0 mL of 0.250 M of…

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Q: For the equilibrium N2O4(g) 2 NO2(g), at 298 K, Kp = 0.15. For this reaction system, it is found…

A: Kp = 0.15 PN2O4 =3.7 × 10^–2 atm

Q: Spotify Web Playe. O CHEMICAL REACTIONS 0/3 Solving moles-to-moles limiting reactant problems Solid…

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Q: Which of the following substituent is an ortho/para-directing activator and an ortho/para-directing…

A: Ortho/para and meta directing groups on benzene are depends upon the nature of the groups. If the…

Q: Question 4 Which significant information given below CANNOT be derived from mass spectra? molecular…

A: Mass spectra determine the masses of particles and of molecules, and to elucidate the chemical…

Q: Balance the following Chemical Reactions: CH:CH 0:- CO:+ H.O+ Cl CoT O2=> CO2H H2O+ H2O+ CO2=…

A: Balanced the given above reaction---

Q: Given data from the scale up synthesis of diethyl acetamidobenzylmalonate (Week 14 Content Area),…

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Q: A 0.56g sample of gas is contained in 250.0 mL cylinder. It's pressure is 983 mmHg and it's…

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Q: what is molarity, the average molarity, and standard deviation? igmsa H Titrations - Report Sheet…

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Q: Problem: CO2 gas occupies a volume of 20.0 L at STP. How many moles and How many molecules are…

A: According to the ideal gas equation, the volume of a gas depends on the temperature, pressure, and…

Q: Explain and identify atomic number, and atomic mass

A: Atomic number-> ->Atomic number is the number of protons present in an atom. ->It can not…

Q: Which of the following is a secondary amine? NH2 NH -NH2 d) `NH2 а) b)

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Q: Find the pH of the equivalence point and the volume (mL) of 0.0884 M KOH needed to reach the…

A: Given data :  1.Molarity of KOH M1 = 0.0884 M  2. Molarity of HNO2 M2 = 0.0390 M  3. Volume of NNO3…

Q: Draw the product in the following enzyme catalysed reaction

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Q: The concentration of Ag* in a saturated solution of Ag2CO3 is 2.46x10-* mol/L at a certain…

A: Concentration of Ag+ in saturated solution of Ag2CO3 is 2.4 × 10-4 mol/L

Q: Classify each half-reaction as a reduction or an oxidation. Cr, 0 (aq) + 14H*(aq) + 6 e¯ → 2…

A: We have to predict the type of Reaction.

Q: A solution is 0.0500 M in NH4Cl and 0.0300 M in NH3. Calculate its OH- concentration and its pH.

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Q: What is the component concentration ratio, [Pr−]/[HPr], of a buffer that has a pH of 4.98? (Ka of…

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Q: 1o A 5 cm sample of 0.05 mol dm3 sodium chloride is mixed with a 5 cm3 sample of 0.05moldm potassium…

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Q: The illustration to the left represents a mixture of hydrogen ( light blue ) and iodine ( purple )…

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Q: Calculate the pH of a carbonate buffer system that contains 0.0065 M HCO, and 0.0084 M CO,. The K,…

A: Given,  Concentration of weak acid, HCO3- = [HCO3-] = 0.0065 M  Concentration of conjugate base,…

Q: 2. A 0.5520 g of potassium hydrogen phthalate, KHCH&O4, a monoprotic weak acid, takes 24.90 mL of…

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Q: 1. Give the major product(s) of the following reactions as needed. OH 1. PCC ОН 2. НО Jones ОН HO…

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Q: Calculate the molar concentration of Ba2+ in saturated BaC2O4 solution. The pH was kept at 4.5. Ksp…

A: Given: pH = 4.5 Ksp of BaC2O4 = 1.0x10-6  Ka1 of H2C2O4 = 5.4x10-2 Ka2 of H2C2O4 = 5.42x10-5

Q: What happens at the anode in the voltaic cell? Cathode?

A: A voltaic cell is an electrochemical cell that uses a chemical reaction to generate electrical…

Q: First ionization energy of magnesium is greater than the first ionization energy of aluminum.…

A: Ionization energy is the energy needed to remove the outermost electron from its outermost shell. Or…

Q: decreases or remain the same - Heating a liquid from 20⁰C to 50⁰C - One mole of water is vaporized…

A: Entropy iis degree of randomness or disorderness in system Entropy order Solids < liquids <…

Q: UV, IR, and MS (Interpretation of Structure) 1.) Predict the structure of the two unknown…

A: 1. Odd mass, odd no of nitrogens present. Therefore one nitrogen present. Therefore the compound…

Q: 3. Atazanavir (structure below) is an orally delivered AIDS-drug which works as an inhibitor for the…

A: We have find out the high energy intermediate of an aspartyl protease-catalysed cleavage of the…

Q: Consider the following reaction where K. = 6.50×10¯3 at 298 K: 2 NOBR (g) = 2 NO (g) + Br2 (g) A…

A: Equilibrium constant ( Kc ) and Reaction quotient ( Q ) is the ratio of concentration of products to…

Q: Give a clear handwritten answer and explain

A: Balanced the given redox reaction under basic condition and answer the following question---

Q: Non-ionizing radiation from a variety of sources is used for producing images in humans. Select any…

A: UV, visible light, infrared (IR), microwave (MW), radio frequency (RF), and very low frequency (ELF)…

Q: Calculate the ASpxn for the following reaction. 2 N205(s) – N2(g) + 4 O2(g) + 2 NO(g) ASX =…

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Q: The BOD was measured to be 300 mg/L for raw wastewater. If the BOD decay constant is 0.242 day,…

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Q: Decide whether or not each of the following metals dissolves in 1 M HNO3. For those metals that do…

A: We have to tell what happened when Al is dissolved in 1 M HNO3.

Q: Ethanol, C2 H5 OH, burns with the oxygen in air to give carbon dioxide and water. C2H5OH(1)…

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Q: 20. Rank the following elements in order of increasing a) size, b) ionic radius, c) first ionization…

A: In the periodic Table From left to Right : Electron affinity & Ionization energy increases &…

Q: Predict the major, organic product for the following reaction sequence. Be sure your answer accounts…

A: In the given reaction here we have to take care about the stereochemistry of the product species.

Q: Draw the skeletal (line-bond) structure of (R)-2-methyoxypentanal. Use a wedge or dash bond to…

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Q: 1. Me H2N OEt MeOH, H* Et 2. xylenes, heat 1. H3O*, heat 2. NH O. Meo OMe p-TSOH, PhH, reflux 3.…

A: 1. Fischer Indole synthesis. 2. Ketal to ketone. Ketone to imine. Imine reduction. 3. O-Bromination,…

Q: 1.1 1. (a) A hydrocarbon (a compound that contains carbon and hydrogen only) contains 82.8% carbon…

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Q: Draw the major organic product of the indicated reaction conditions. Be sure to clearly depict the…

A: In given reactant We have, amide function and alkyne function. And given reagent is lindlar…

Q: Question 3.a of 6 Submit Write a balanced dissociation equation for CdF2 in aqeuous solution. If the…

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