Explain briefly the differences in Rf  values of the pigments that you have separated from spinach juice. What properties must the pigment have to travel further in the chromatogram? Consider the structures of cholesterol and ?-carotene. Which do you think will have the highest Rf value if the solvent used was acetone - hexane (20:80)? Why?

Q: The chemical formula for sodium chloride is NaCl. A chemist measured the amount of sodium chloride p...

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Q: any moles o

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Q: The analysis of a water is as follows Ca+ 78 Alkalinity SO42- C pH 282 96 8.1 Nat- Mg2+ 30 K+ Specie...

A: Due to technical error ,unable to provide you the solution. Please resubmit the question once again 

Q: Name the following isomer H.C CH3 2. 3. H.

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Q: C. Preparation and storage of standard solutions 1. Use the weighed and transferred NaCl powder in p...

A: Let's do the schematic diagram according to the procedure given in the question.

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Q: ive AG and which requires no added work for the reaction to pro

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Q: of ejected electrons as a function of the frequency of radiation hitting a metal surface. She obtain...

A: Due to technical error ,unable to provide you the solution. Please resubmit the question once again

Q: CH3 CH;CH,C=ĊCHCH; CH, CI ČH; ĊI CH3 BRCH,C=CHCH3 Br ÓH

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Q: Consider the SuIfhydride ion, sH ion, SH- a Draw the mdlecular orbital diagram for this Pon. Use onl...

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Q: When the following equation is balanced properly under basic conditions, what are the coefficients o...

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Q: Vinegar sold commercially is typically 0.8−1.0 M acetic acid. A 1.00 M solution of acetic acid is me...

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Q: Consider the reaction shown below and the tabulated thermochemical data at 298 K. Which of the follo...

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Q: Calculate the number of ml of 3.5 M (NH4)2CO3 solution necessary to provide 12.5 g. of (NH4)2CO3? 2....

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Q: Compare Lavoisier's definition of acids to the modern one. How did his fall short? Why was his defin...

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A: Definition of oxidation and reduction:

Q: Given the following elementary steps, what is the rate law for the overall reaction? Use steady-stat...

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Q: 6.) Given the following information: 2 A(g) + B(g) = A2B(g) 2 A(g) + C2(g) =2 AC(g) K1 = 5.0 x 104 K...

A: Calculate equilibrium constant of the reaction, 2AC + 4A +3B ↔3A2B +C2 

Q: Which of the following physical processes is exothermic? a. evaporation of alcohol b. melting of i...

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Q: Which of the following rate laws would be classified as 2nd order? Rate = [A]^2 Rate = k[NO]^2 [O2} ...

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Q: Reaction Mechanism for the Synthesis of 1,1’-(buta-1,3-diyne-1,4-diyl)di(cyclohexan-1-ol) from 1-eth...

A: It is coupling reaction between terminal alkyne. It is carried out in presence of CuCl and TMEDA as ...

Q: the percent yield of

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Q: • Sodium metal reacts with hydrogen to form sodium hydride (NaH) 2Na + H2---- 2 NaH If 10 grams of N...

A: Given reaction --- 2Na + H2 ----> 2NaH  mass of Na =10 g, mass of H2= 8 g  moles of NaH = ?  mola...

Q: pH

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Q: Here we have the molecular orbital energy diagram for this chlorophyll molecule. Match the absorptio...

A: To match the absorption peaks with the transitions shown in molecular orbital energy diagram.

Q: How can the matrix effects affect the determination of phosphate in seawater by using AAS

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Q: What weight of KCN is equivalent to 30.00 mL of AgNO3 solution containing 15.00 g/liter (a) by the V...

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Q: Use standard reduction potentials to calculate the equilibrium constant for the reaction: 2Cu2+(aq) ...

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Q: Iron oxides can be smelted in a blast furnace by reacting with COg), which serves as the reducing ag...

A: Due to technical error ,unable to provide you the solution. Please resubmit the question once again 

Q: presence of 02(0) Torn 201s) is-25.0 kJ per mol 02. In the compound ZO(e), Z has a +2 formal charge....

A: Due to technical error ,unable to provide you the solution. Please resubmit the question once again

Q: Consider a 1.00 L of 1.50x10-3 M hydrocyanic acid (HCN, Ka=4.9x10-10). Write the equilibrium expres...

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Q: Answer all questions 01. a) In the two bioplastic films, determine which one has the highest tensile...

A: Due to technical error ,unable to provide you the solution. Please resubmit the question once again 

Q: . Calculate the number of gram of Ca(NO3)2 that could be produced by reacting 125 ml. of 6M HNO3 wit...

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Q: Which of the following is the weakest base?

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Q: What is the bond enthalpy for the bond A-B given the information below? A-B=B-A + B=C - A-B + A-C + ...

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Q: Which reaction mechanism of a Lewis acid reacting with a Lewis base is correct?

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Q: A sample consisting of 2.00 mole of an ideal monoatomic gas is expanded isothermally at 22°C from 22...

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Q: • 20 grams of nitrogen reacted with 2.5 moles of hydrogen to form ammonia (NH3) gas. What is the mas...

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Q: Calculate the number of grams of magnesium ammonium phosphate, which will dissolve per liter if its ...

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Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...

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Q: Consider the reaction, PCl5(g) ⇌ PCl3(g)+ Cl2(g) where the value for Kc is 4.1 x 10-5. The initial c...

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