Calculate the density of a mixture of methanol (CH3OH) and water at 20oC having a composition of 40% w/w methanol (state your assumption)

Q: What mass of non volatile solute sucrose needs to be dissolved in 100g of water in order to decrease…

A: The expression of Raoult's law is shown below: ∆P01P01 =W2 M1M2 W1 where; ∆P01 = change in vapor…

Q: At 20 oC, the vapour pressure of pentane is 58kPa and the vapor pressure of hexane is 16 kPa. a)…

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Q: one of the most common water-based antifreeze solutions used in cooling systems is a mixture of…

A: The solution of 7.50% V/V contain 7.5 mL of ethylene glycol and 92.5 mL of water. To make the volume…

Q: The solution prepared by dissolving 6.06 g of triphenyl methane [(C,H5)CH] in 1000 g of benzene,…

A: Given : Mass of solute i.e triphenyl methane = 6.06 g Mass of solvent i.e Benzene = 1000 g = 1 Kg…

Q: Aniline, C6H5NH2, and hexane, C6H14 , form partially miscible liquid - liquid mixtures at…

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Q: When ethanol is added to water at 25 °C and 1 bar, the total volume of the solution changes…

A: A mole is defined as some of the chemical units it may be atoms, molecules, ions.…

Q: Naphthalene, C10H8 , melts at 80.2 °C. If the vapor pressure of the liquid is 1.3 kPa at 85.8 °C and…

A: Given that  Naphthalene has melting point =80.2oC. Vapour pressure of the liquid is 1.3 kpa at…

Q: A 5.17 molal aqueous nitric acid solution was prepared. (Density of nitric acid = 1.51 g/mL, density…

A: Molality = Number of moles of solute/Mass of solvent in Kg Concentration (%v/v) = 100 x Volume of…

Q: The osmotic pressures required for this process can be as high as 19.6 atm . What would the molar…

A: osmotic pressure is the minimum pressure required to stop osmosis i.e.  flow to solute molecule from…

Q: At 25 °C, the mass density of a 50 per cent by mass ethanol–water solution is 0.914 g cm−3. Given…

A: Mass of ethanol present in 100 g of solution = 50 g Mass of water present in 100 g of solution = 50…

Q: 1-propanol (P1° = 20.9 Torr at 25 °C) and 2-propanol (P2° = 45.2 Torr at 25 °C) form ideal solutions…

A: Vapor pressure in a liquid mixture can be calculated as:

Q: It is desired to prepare calcium sulfate solution by dissolving 200 grams calcium sulfate in enough…

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Q: 1. Crude petroleum oil is generally considered to be formed from animal and vegetable debris…

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Q: A hospital grade Comet liquid cleaner solution (see picture below) is 1.45% by mass sodium…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: How much energy is required to vapourize 158 g of butane (C4H10) at its boiling point if its AvapH…

A: Given,  Mass of butane = 158 g  Molar mass of butane = 58.12 g ∆Hvap = 24.3 KJ/mol

Q: Given the property on the left as the criterion, which of the following order of comparison is TRUE?…

A: According to the property on the left as the criterion the following order of comparison is true is…

Q: What is the boiling point elevation (delta Tb) of a solution containing 255 grams of non-electrolyte…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: The solubility of alum in 25 mL 1.4 M KOH plus 10 mL 9 M H2SO4 (our solution) is approximately 1.0 g…

A: Given: Solubility 1= 1.0 g Solubility 2= 1.7 g T1= 1.0°C T2= 6.0°C Temperature at time of…

Q: What will be the new boilng point of 297ml benzene (Kb = 2.53 °C.Kg/mol; Bp = 80.1°C) when mixed…

A: 1- First determine the morality of the solution :  Mass of benzene = ( Density × volume)  Mass of…

Q: Calculate a) the molality of CH3OH (methanol) and b) mole fraction of solvent in a solution that is…

A: Given: 7.50 % by mass CH3OH in CH3CH2OH (ethanol). Means 7.50 g of CH3OH present in 100 g of…

Q: Aniline, C6H5NH2, and hexane, C6H14, form partially miscible liquid–liquid mixtures at temperatures…

A: i)

Q: One of the go-to health products today is rubbing alcohol. A commercial brand reports that a 1.00 L…

A: Given: Volume of solution = 1.00 L = 1000 mL                                     (Since 1 L = 1000…

Q: freezing point

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Q: An aqueous solution of MgCl2 (95.211 g/mol) having density of 1.85 g/cc contains 35 g of MgCl2 per…

A: Given data, Mass of MgCl2 = 35g Volume of solution = 100 cc Density of solution = 1.85 g/cc Molar…

Q: 170.50 ml of 1.23 M organic salt was mixed with 236.23 ml of Ethanol (d= 0.789 g/mL, MW…

A: Given,  Volume of the organic salt (solute) = 170.50 mL  Molarity of organic salt = 1.23 M  Volume…

Q: What is the boiling point of the automobile radiator fluid prepared by mixing 1.06 L of ethylene…

A: Given : Volume of ethylene glycol = 1.06 L = 1060 mL                                    (Since 1 L =…

Q: Q: The solubility of hydrogen in water is expressed according to as = 6.8 xlo" Henry's law 6.8x10 X…

A: According to Dalton's law     Y = PAPWhere  Y = mole fraction in gas phase              PA = partial…

Q: 2. Calculate the boiling point elevation of an aqueous solution containing 36 grams of sucrose…

A: Given Mass of sucrose = 36 g Molar mass of sucrose = 342 g Mass of water = 250 g = 0.25 kg consatnt…

Q: Determine the boiling point elevation of a solution of 130.0 mg of carvone (a.k.a. oil of spearmint,…

A: Given: The mass of carvone = 130.0 mg The mass of carbon disulfide = 1.42 g The value of Kb =…

Q: Calculate the mole fraction of urea CO(NH2)2 in water at 25oC for a solution  containing 20 moles of…

A: Calculate the mole fraction of urea in water at 25°C for a solution containing 20 moles of urea/kg…

Q: At 20 oC, the mass density of a 20 percent by mass ethanol-water solution is 968.7 kg m-3. Give that…

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Q: Complete the table and arrange the following aqueous solutions in orderr of increasing boiling…

A: " Since you have posted a question with multiple sub-parts , we will solve first three sub-parts for…

Q: A 20% wt/wt aqueous solution of sodium chloride at 25C has a density of 1.145 g/mL. Express the…

A: 20% wt/wt solution is taken.  Its density is 1.145g/ml The molar mass of NaCl = 58.44g/mol

Q: Let's consider one mole of a liquid mixture with composition Xb= 0.8 initially at 20 °C. This…

A: Given: Binary phase diagram of a water-ethanol mixture.

Q: Estimate the molality (mol/kg) of oxygen in water at 25 °C and given that the partial pressure of O2…

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Q: ST4D.3 - The vapor pressure of a substance at various mole fractions in a mixture were found to be…

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Q: 1. It is desired to prepare calcium sulfate solution by dissolving 250 grams of calcium sulfate in…

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Q: Match the units to the setup below for calculation of the change in vapor pressure (delta VP) of a…

A: The species mole fraction may be described as the mathematical ratio relationship between the…

Q: Na < NaCl < Na2O

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Q: The partial molar volumes of two liquids A and B in a mixture in which the mole fraction of A is…

A: The Partial Volume of a substance in a mixture is defined as the increase of volume that occurs when…

Q: SODIUM THIOSULFATE SOLUTION, 0.1 N 1. Dissolve 25 g of sodium thiosulfate pentahydrate…

A: Molarity - Number of moles of solute present in 1 litre volume of solution. Normality - the number…

Q: yeasts are able to produce high internal concentrations of glycerol to counteract the osmotic…

A: Given, Temperature = 25 C Density of solution = 1.02 g / mL Molecular weight of solute = 58.44 g /…

Q: A solution contains 3.75 g of a nonvolatile pure hydrocarbon in 95 g acetone. The boiling points of…

A: The question deals with the concept of solutions.  elevation in boiling point is a colligative…

Q: What is the vapor pressure at 100 degree celsius of a solution containing 1.68 g of sucrose (MW…

A: The relative lowering of vapour pressure is equal to the mole fraction of solute present in the…

Q: If a solution containing 4.30 g triphenylmethane (C6H5)3CH, in 800 g of benzene is cooled to 0.321…

A: Given data set: Mass of triphenylmethane = 4.30 g Mass of benzene = 800 g Temperature = 0.321 degree…

Q: A solution is prepared using 19 mL of hexane and 23 ml of heptane. What is the mole fraction of…

A: First we will calculate mole fraction of each component in solution and then apply Raoults law to…

Q: 279.28 mL of 1.22 M organic salt was mixed with 168.14 mL of Ethanol (d= 0.789 g/mL, MW…

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Q: The solution prepared by dissolving 6.06 g of triphenyl methane [(C6H5)CH] in 1000 g of benzene,…

A: Given : Mass of solute i.e triphenyl methane = 6.06 g Mass of solvent i.e Benzene = 1000 g = 1 Kg…

Q: A solution is prepared at 25oC by mixing 20g of K2SO4 with 150mL of water. The density of water at…

A: "Since there are multiple questions and it is not mentioned that which one has to be solved so I am…