When performing arecrystallization, slocent with a boiling point less must be use than the melting point of the compound being recrystallized. For benzil ( m.p.94-95C) which solvent would be best for this recrystallization?  toluene (b.p. 110C)  H2O (b.p.100 C) ethane( bo -98) methanol(bp64.7)

Q: 6. From the following cooling curve, which temperature is the most possible freezing temperature for…

A: Cooling curve :-  The graph of temperature vs time to find the freezing point of substance is called…

Q: If the volume of the mixture before distillation was 70ml and the percent of recovery was 66%, what…

A: Given that, Volume of mixture before distillation= 70 ml % of recovery =66%

Q: Benzoic acid Naphthalene Anthracene ОН M = 128.17 g/mol 122.12 g/mol 178.93 g/mol

A: Here we have to find the MM of an unknown solid using the freezing point depression. Here 0.5 gram…

Q: The atomic weight of sulfur is 32 g/mol. By using the result from (2), write the molecular formula…

A: According to the Bartleby guidelines we have to answer only one question so please submit different…

Q: Given the following mixture of two compounds 30.00 mL of X (MW =50.00 g/mol)(density 1.069 g/mL) and…

A: Given : Volume of solute i.e X (because X is in lesser quantity) = 30.00 mL Volume of solvent i.e Y…

Q: hree different solutions containing isopropanol (pure vapor pressure = 45.2) and water (pure vapor…

A: Given information: Isopropanol pure vapor pressure = 45.2 torr Pure vapor pressure of water = 18.5…

Q: Silica gel (stationary phase) can potentially interact with analytes by what intermolecular forces?

A: Chromatography technique is used to achieve the purity of organic compounds as well as separation of…

Q: as per guidelines you can answer these two question because they are bits of the same question

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Q: Answer B and C only. Use the given parameters in the table.

A: A question based on mole concept that is to be accomplished.

Q: 3. Ms Lauren R. Davis prepared three aqueous solutions of sucrose (C12H22O11) in proportions as…

A: Molarity of a solution is the number of moles of solute dissolved in one litre of the solution…

Q: A mixture of these four liquids are separated using a fractional distillation: toluene, boiling…

A: sl.no Component Boiling point 1. Toluene  111 oC 2. Benzene 80 oC 3. Methanol 65 oC 4.…

Q: Give correct detailed Solution..don't give Handwritten answer..show work

A: Given,number of moles of naphthalene = 0.222 molmass of liquid benzene = 250. gKbp of benzene =…

Q: Describe the changes you will observe by increasing the temperature of the triethylamine / water…

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Q: 12. Recall that the freezing point is depressed by -1.86 °C per mole of solute per kg of water.…

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Q: * Module 3: In his experiment, Mashiho wanted to determine the molar mass of his unknown sample.…

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Q: 300 Sugar 260 KNO 220 180 NANO 140 NaBr 100 KBr 60 KCI Naci 20 Ce (SO 20 40 60 80 100 Temperature…

A: We have to answer as to which solid is most soluble at the given temperatures.

Q: The addition of 50g of a compound to 750g of CCl4 lowered the freezing point of the solvent by 0.52…

A: a. We know that : ∆Tf = Kf*W2/M2W1 or, M2 = (1000*Kf*W2)/(∆Tf*W1) ...(1) Here, ∆Tf = 0.52 K, Kf = 30…

Q: 28. What will be the value of freezing point depression constant of cyclobutene having freezing…

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Q: When 6.85 g of an unknown compound composed of the elements C, H, O and F was dissolved in 81.5 g of…

A: Molality of solution is given by number of moles of solute per kg of solvent.   Depression in…

Q: containing 2 polar components and 1 nonpolar component. The student is asked to separate the…

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Q: Hex-1- ene (C6H12) has a vapor pressure of 23.26 kPa at 23.5 ∘C and but-1,3-diene (C4H­6) has a…

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Q: How does the data display that water is a good solvent for recrystallization of benzoic acid?…

A: Temperature (C).    Solubility(g benzoic acid/L water) 0                                     1.7 25…

Q: A certain substance X has a normal boiling point of 141.7 °C and a molal boiling point elevation…

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Q: Hex-1-ene (C6H12) has a vapor pressure of 23.26 kPa at 23.5 ∘C and but-1,3-diene (C4H­6) has a vapor…

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Q: What is suspensions? Select one: Dispersed systems in which one liquid is dispersed as finite…

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Q: Please order the following types of solute diffusivity from largest to smallest. D pore: Diffusivity…

A: The rate of diffusion, or diffusivity, is a measure of how quickly particles, heat, or fluids can…

Q: Arrange carbon tetrafluoride (CF4), ethyl methyl sulfide (CH3SC2H5), dimethyl sulfoxide [(CH3)2S=O],…

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Q: Draw a temperature-composition diagram for the acetone-chloroform mixture, wherein the boiling…

A: The temperature-composition diagram indicates the changes in the composition of a liquid and vapor…

Q: Two fractionating columns are each 40 cm in length. Column A has 20 cm. By marking in the space…

A: Given, Length of fractionating column , L = 40 cm HETP of column A =  2cm HETP of column B = 20 cm

Q: Estimate the composition of N2 dissolved in water at 298 K. The partial pressure of N2 at this…

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Q: Suppose you have 1 g of a solute X (K = 10) in 100 mL of water (solvent 1) and you want to extract…

A: Liquid-liquid extraction

Q: Using the following figure, predict the boiling point of the initial drops of distillate of a…

A: Given the distillate contains a mixture of 0.8 Mol fraction of toluene and 0.2 Mol fraction of…

Q: 3. Use the eutectic diagram on the following page for the following questions. (a) What is the…

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Q: What is the vapor pressure, in mmHg, of ethanol at 52.1 °C? What is the entropy of vaporization at…

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Q: The addition of 8.00 g of a compound to 300 g of naphthalene lowered the freezing point of the…

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Q: What mass of CaCl2 must be dissolved in 1000. g H₂O in order for the boiling point to be 100.75 °C?…

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Q: The experimental data in the table was collected during a freezing point depression study where BHT…

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Q: 300 g of naphthalene lowered the freezing point of the solvent by 0.819 K. Calculate the molar mass…

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Q: Benzyl alcohol (bp 205°C) was selected by a student to crystallize uorenol (mp 153–154°C) because…

A: To explain why the solvent benzyl alcohol (bp 205°C) is not a good choice for the crystalization of…

Q: In which option is the change in the boiling temperature of the solution prepared by dissolving 10 g…

A: Answer:- This question is answered by using the simple concept of elevation in the boiling point of…

Q: The boiling temperature of a substance increases by 0.63⁰C by dissolving 565 g of an organic…

A: Given:  Boiling point of substance increased by = 0.63 ⁰C  mass of solvent = 565 g = 0.565 kg…

Q: The partial molar volumes of water and ethanol in a solution with XH20 = 0.45 at 25°C are 17.0 and…

A: Given partial molar volume of water, VmW = 17.0 cm3/mol or 17.0 cm3.mol-1  partial molar volume of…

Q: Use the temperature-composition diagram for a substance A and B mixture to answer the questions…

A: Answer:Temperature-compostion diagram has two curves in which lower curve is the curve between…

Q: We utilise the phrase "like dissolves like" when choosing the correct solvent for the…

A: There are various types of intermolecular forces present in the molecules such as Vander Waal,…