HM-202 Lab 3 Chromatographic Sep How would the Rf values change if you used pure dichloromethane (no methanol) as the mobile phase for the TLC separation of if you pure methanol

Q: Calculate the volume in liters of a 36.3 g/dL zinc nitrate solution that contains 379. g of zinc…

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Q: 2. a) b) Ez Draw the products of each / elimination Росниня H #3 (111 |||| H3 C H Ф OCH₂CH3

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Q: Consider Le Châtelier’s Principle. In which direction does the addition of an uncompetitive…

A: Given that, an enzyme catalysed equilibrium reaction, E + S ⇌ ES. We have to in which direction the…

Q: I. PROBLEM SOLVING Show complete solutions for each of the problems. Express your final answers in 2…

A: #2: Amount of ferric oxide, Fe2O3 initially taken = 694 mg  Experimental yield of iron, Fe(s) =…

Q: Use the References to access important values if needed for this question. Aluminum reacts with…

A: Here we are required to find the mass of hydrogen formed. Given molar mass of hydrogen =2 g/mol

Q: Please explain the mechanism of this Friedel-craft Acylation when the major product is…

A: Given : reaction  Tip : step-1: formation of electrophile          Step-2: attack of nucleophile

Q: Crystals have precipitated upon cooling a homogeneous solution of a compound.  The crystals were…

A: A solution is the one that contains a solvent and a solute. Solvent is the one present in larger…

Q: A solution of 0.101 M cysteine is titrated with 0.0253 M HNO3. The pK₁ values for cysteine are 1.70,…

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Q: A major component of gasoline is octane (C,H₁). When octane is burned in air, it chen and water…

A: One mole of octane react with oxygen and form eight mole carbon dioxide and nine mole water…

Q: Consider a general reaction A(aq) B(aq) The AGO of the reaction is -8.190 kJ. mol-¹. Calculate the…

A: ΔGo =-R ×T ×ln K  ΔGo  is the standard Gibbs free energy change=-  8.190 kj/mol=-8190j/mol R  is…

Q: Mg(s) + 2HCl(aq) -> MgCl2(aq) + H2(g) The total pressure of gas collected over water is 740.0…

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Q: 3.15 mol of an unknown solid is placed into enough water to make 150.0 mL of solution. The…

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Q: What test will you use to differentiate Alkenes from alkynes? Explain.

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Q: 5. The product of the reaction below gives the IR spectrum shown. Although you are unfamiliar with…

A: IR spectroscopy is an important tool for the determination of the functional group in the compound.…

Q: What functional group(s), if any, are present in each molecule. fluorene 9-fluorenone Which compound…

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Q: Calculate the initial concentration of a reactant that took 5 min to reach a final concentrationof…

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Q: Are we able to completely separate pigments from each other using paper chromatography?

A: Paper chromatography separation of pigments

Q: In a titration of 20.57 mL of 0.1653 M H2SO4, 45.41 mL of a NaOH solution are needed. What is the…

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Q: . Under what conditions of AG, AH and AS is the reaction never spontaneous?

A: Given : reaction should never spontaneous. If ∆G is positive reaction is non spontaneous.

Q: Draw a reaction energy diagram for an endergonic reaction that is fast

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Q: 4.21 x 1023 molecules Cach STARTING AMOUNT 4.21 x 1023 molecules CaCl2 x 72°F Mostly sunny X 6.022 x…

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Q: acrose costs $1.05 per pound (lb). If a bottle has 2.00 kg of sucrose in it, how much would you pay…

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Q: An electrophilic addition reaction of a conjugated diene that produces more than two organic…

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Q: 2) The average rate of disappearance of ozone in the following reaction is found to be 8.93 x 103…

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Q: A K 0.8 0.8 Ba cs/0.9 0.7 0.9 Na 0.96 ST RD 1.06 12 1.06 1.2 Ca/1.31 Y 1.21 Mg La 1.1/1.3 2.1 N Be V…

A: Given :-  The given interatomic bond is Ga-P  From diagram we have,  Electronegativity of Ga = χGa=…

Q: What would be the product for the following reaction? OH & -CH₂OH 0 PCC, excess CH₂Cl2 O= H OH H вое…

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Q: How many atoms of hydrogen are in 2.55 kg of NH3? What is the mass of 7.40 moles of Fe(NO2)2?…

A: The answer to the following question is- a) given mass of ammonia = 2.55 kg Molar mass of NH3 =…

Q: For recrystallized salicylic acid compound Explain how IR SPECTRUM works using KBr disc on a…

A: For determining IR spectra of solid samples, KBr pellet method is often used. KBr is used as the…

Q: select the salts that, when dissolved in water, would form acidic solutions  NaF  NaCl  NH4Cl…

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Q: Write the equation for the reaction associated with the K₁2 of sulfuric acid, H₂S K₂2: Write the…

A: we have to write the reaction associated with Ka2 of sulfuric acid and Kb2 carbonate ion

Q: X Y Z sample before cm 6 -5- 4 3- X Y Z sample after solvent front origin line

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Q: Which solvent would be the best choice for use as an extraction solvent in a separatory funnel with…

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Q: The following pH curve is for the titration of 20.0 mL of a 0.10 M solution of a weak monoprotic…

A: Given, pH curve . Volume of monoprotic base =20.0 mL concentration  of  strong acid = 0.1 M

Q: Ammonium sulfate is added to an unknown mixture of ions. A precipitate forms. The solution is…

A: To identify the cations present in giving mixture of ions.

Q: How do you get to the T2 separated from the parenthesis?

A: Answer: This question is based on Arrhenius equation that gives us relation between activation…

Q: Which substituent(s) lie on the plane of the screen? Select an answer and submit. For keyboard…

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Q: Which reaction corresponds to the standard enthalpy of formation, Δ?∘f,ΔHf∘, for MgCO3(s)?…

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

Q: The activation energy for a reaction is 533.2 kJ. The rate constant at 51.9ºC is equal to 1.57 x…

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Q: 3. How many grams of copper sulfate (CuSO4) would you measure to make 2L of a 1M solution? Show your…

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Q: 9.71 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: Here we are required to  find the Enthalpy of dissolution of MgSO4.

Q: 2. An ideal gas in thermal contact with the surroundings is cooled in an irreversible process at…

A: Given Condition  An ideal gas in thermal contact surroundings is cooled in an irreversible process…

Q: The pH of a solution of HBr is 2.88 at 25°C. What is the H⁺ concentration in this solution?

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Q: How many moles of propane (C3H8) are required to react completely with 123 L of oxygen gas according…

A: Given, Volume of oxygen = 123 L Temperature , T = 0°C=(0+273)K= 273 K Pressure , P= 1 atm

Q: What is the correct name for PF3 ? What is the correct name for Mg3P2 ? What is the correct name…

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Q: Given the following: P(s) +50₂(g) →P4010(s) A Gº=-2697.0 kJ/mol 2H₂(g) + O₂(g) → 2H₂O(g) A…

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Q: Determine the point group of each molecule. Show the different symmetry elements. 6. PF5

A: Symmetry elements:  Axis of rotation: round around which gives an indistinguishable molecule.  Axis…

Q: (1) Slick Johnny burns 1.2 Kcal/min when he's completely chilled and fasted.  He lives on moonshine…

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Q: مله HO

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Q: Determine the activation energy (kJ) for a reaction using the following information. Report your…

A: Given data k at 310.5 K is equal to 7.41 x 10-6 s-1 k at 319.9 K is equal to 3.81 x10-3 s-1 find Ea

Q: QUESTION 3 The recipe for a fruit salad calls 125 g of strawberries, 0.35 kg grapes and 21 dg of…

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