Which is more polar TLC eluant: a solution of 10% acetone in hexanes or a solution of 40% acetones in hexanes?

Q: 11. How much fluorouracil powder is in 5% Efudex® cream 50 g? 12. How much oxiconazole nitrate…

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Q: Acetophenone is soluble in diethyl ether, isopropanol, and nhexane. Identify and justify the most…

A: The selection of the solvent for the UV-Vis characterization based on their UV cutoffs. The UV…

Q: Calculate the osmolarity in mOsm/L of 500 mL of a solution containing 5% w/v dextrose, 0.78% w/v…

A: Osmolarity in mOsm/L is defined as the millimoles of solute particles per Liter of the solution.…

Q: Sample Problem for Preparation of Sample by Mass Fraction How many grams of oxalate must be…

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Q: pa cal equation Write O Sn Cla + diathyl ether > Sn Cla a cetone 3 SnCl2 + ethono) and write…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: or the following, should i use fractional or simple distillation? separation of 1-butanol (Tb = 116…

A: When separating 1-butanol (boiling point = 116°C) from ethanol (boiling point = 78°C), fractional…

Q: 6.3017g sample was weighted Analytically and made up volumetrically to 500mL. A 25mL alliqout of…

A: The objective of the question is to determine the percentage of Na2CO3 and NaHCO3 in a 6.3017g…

Q: You are given a 1:1 (by weight) solid mixture of vitamin C and vitamin A, and you are going to use…

A: A 1:1 solid mixture of vitamin C and Vitamin A is to be separated from one another by liquid-liquid…

Q: 5. Put the following compounds in order of increasing melting point: H₂O, NaCl, C₂H6, CHF3 (Remember…

A: Note: As per the guidelines solution of 5th question has been made. For the expert solution of…

Q: 14% ethanol. How much of 14% v/v ehathol to acquire 14ml of acetic acid?

A: Volume Percent: The volume percent is used to express the concentration of a solution when the…

Q: Naphthalene, C10H8 is insoluble in water but sublimes easily when heated. How could you separate a…

A: This problem is based on the general method of separation.

Q: Using their Ksp values, find the solubility of CaCO3, Ba3(PO4)2 and PbSO4 in Ksp(CaCO3) = 8.7 x 10-9…

A: The objective of the question is to calculate the solubility of CaCO3, Ba3(PO4)2 and PbSO4 using…

Q: 9. Show the structures of methane CH4; formaldehyde, CH2-O and acetylene, C¿H2 exhibiting the…

A: Methane:C is sp³ hybridised.No. of sigma bonds = 4

Q: Defi ne moist and dry heat, and explain their modes of action and relative eff ectiveness.

A: A temperature higher than the normal is essential for microbial growth is microbicidal. In dry heat,…

Q: Between Whatman No. 1 filter and 3% KCI solution, which is more polar?

A: Polar compound are those in which there is electronegativity difference between the atoms.

Q: Q5. Which distillation technique is more efficient, simple or fractional? Explain briefly.

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

Q: In adjusting a 3.8 % Epinephrine HCl (E = 0.29)  injectable to isotonicity, 292.5 mg of NaCl (E=1)…

A: Since you have asked multiple questions, we will answer only first question for you. In order to get…

Q: 8.00 -NH₂ Mg(504) CH₂Cl₂ Reflux + H₂O

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Q: 011/19 CH3 HO HO CH2 HO H HO H HO HO. H OH HO" Но H. 02,00~ CH3 Но HN ZHN" CH3 explain your choices.…

A: Ibuprofen reacts with chiral amines and forms diastereomers. These diastereomers are seperable using…

Q: scribe the preparation of 150 mL of 6.00 M H3PO4 f at is 86% H3PO4 (w/w) and has the specific…

A: Given data set: Volume of H3PO4 = 150 ml Molarity of H3PO4 = 6.00 M Specific gravity= 1.71 W/w% =…

Q: should i use fractional or simple distillation for the following: separation of 1-butanol (Tb = 116…

A: The objective of the question is to determine the appropriate distillation method for separating…

Q: What volume (in mL) of the prepared high alcoholic elixir is needed if Rx requires 120 mL of an…

A: Answer: In this question we have to mix two different alcohol solution in such a combination that we…

Q: a) How much volume of water in liters should be added to 98% H₂SO4 solution (Sp. Gr.= 1.82) to…

A: Since you have posted multiple subparts in question so we are answering first question(a) for…

Q: Separate a mixture of Vitamin D and Vitamin B2 (riboflavin) by paper chromatography. The stationary…

A: Paper chromatography works on the partition principle i.e. The samples are distributed or…

Q: should i use fractional or simple distillation for the following: separation of 1-butanol (Tb = 116…

A: The objective of the question is to determine the appropriate distillation method for separating…

Q: y milliliters o

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Q: 1- Al kenes are Soluble by

A: NOTE ; Since,you've posted multiple questions,we're solving first question for you. If you want any…

Q: 1-4 ture @ 26.1°C, 24.6g of camphor (LiothG0), a nunvolatile solid, is dissohved in The of benzene…

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Q: How to prepare, 0.8 N of MgSO4 (Mol. wt. 104 and the charge is 2) in 0.5 L. Dissolve 20.8 grams of…

A: We have to apply normality formula

Q: Incorrect Separation Scheme NH2 ether, 10 % NaOH aq ether NH 6 M HC1 Na,SO4. gravity filtration…

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Q: Model 3 The Model: Dilution Process of dilution: add solvent to conc. soln. x X хх "concentrated"…

A: Solution after dilution will have lower concentrations and the concentration can be find by formula…

Q: Which best fits in blank 3? HCI NaHCO3 aluminium salt H₂SO4 4-methylacetophenone methylene chloride…

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Q: Of the following substances, has the lowest boiling point. Select one: O CHCH,OH (M. Wt. = 46) %3D o…

A: Boiling point:The temperature at which the vapor pressure of the liquid becomes equal to the…

Q: he physician has ordered 25mEq of potassium chloride in 1,000 mL of D5W IV. Available: KCL 20…

A: The required amount of KCl = 25 mEq Required volume of solution D5W = 1000 mL The available KCl has…

Q: 4-bromobenzoic acid (1.0 g)  is dissolved in 20 ml dichloromethane. After addition to a separatory…

A: We have find out the answer.

Q: Temp (°C) 110 100 90 80 70 60 50 40 Distillation Curve 0 20 40 60 80 100 120 Volume (drops) Based…

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Q: g in 100mL of water. How many 10 - mL extractions are needed to extract at least 95% of material?…

A: With 10 mL extractions and a solvent distribution constant (K) of 6.5, you will require two…

Q: 6 When in the liquid state, which of the following compounds is most likely soluble in liquid CHCN?…

A: The given compound in the liquid state is . It belongs to the class of nitriles. The compounds which…

Q: 1 equiv. dilute HBr

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Q: What method of separation would you use to isolate compound B from an ether solution containing a…

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Q: What do you notice about the compounds under the melting point column that have negative values?

A: We are given the melting and boiling point of different compounds in the table.