How many grams of glucose must be added to 250 g of water at 400C to create a solution with a vapour pressure of 54.0 torr? (The vapour pressure of water at 40°C is 55.3 torr)

Q: The vapour pressure of pure CCI4 at 65 °C is 504 mmHg .How many grams of glucose (C6H12O6) must be…

A: The vapour pressure of a solution can be determined as below : Psolution  = Xsolvent. Psolvent Where…

Q: Acetonitrile 1CH3CN2 is a polar organic solvent thatdissolves a wide range of solutes, including…

A: Given:Molarity of LiBr solution = 1.80 MDensity of solution = 0.826 g/cm3Molarity = Number of moles…

Q: What is the vapor pressure of an aqueous solution at 25C that is 4.00 molal in sugar and 3.00 molal…

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Q: Calculate the mass of ethyleneglycol 1C2H6O22 that must be added to 1.00 kg of ethanol1C2H5OH2 to…

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Q: The vapour pressure of pure water at 55.0 °C is 118 mmHg. What is the vapour pressure of the mixture…

A: Raoult's equation shows how to calculate the change in the vapor pressure of a solution from the…

Q: An antiseptic solution contains hydrogen peroxide, H2O2, in water. The solution is .5675 molal H2O2.…

A: The mole fraction of hydrogen peroxide is calculated in step 2.

Q: How many grams of pyrazine (C4H4N2) would have to be dissolved in 1.50 kg of carbon tetrachloride to…

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: What is the boiling point of a solution composed of 15.0 grams of urea [molar mass  (60.056 g =…

A: Given ; Mass of urea i.e solute = 15.0 g Mass of water i.e solvent = 0.500 Kg  Molar mass of urea =…

Q: Lauryl alcohol is obtained from coconut oil and is used tomake detergents. A solution of 5.00 g of…

A: The depression is freezing point is = freezing point of solvent - freezing point of solution  Since…

Q: What is the mole fraction χ for the solvent in a 1.50 molal solution of ethanol (C2H5OH) in water?

A: We have to find mole fraction χ for the solvent in a 1.50 molal solution of ethanol (C2H5OH) in…

Q: A solution is prepared by dissolving 40.0 g of sucrose, C12H22O11, in 250. g of water at 25°C. What…

A: Given that vapor pressure of water is 23.76 torr and 40 g of sucrose is dissolved in 250 g of water.…

Q: After the addition of 24 g of ethanol (C2H5OH) to 1 kg of water, the freezing point of the solution…

A: Cryoscopic constant: It is the freezing point depression that is produced when the one mole of the…

Q: Assuming ideal solution behavior, what is the boiling point, freezing point, and vapour pressure (at…

A: Molecular mass of sucrose = 342 gm Molecular mass of water = 18 gm Molality (m) = no. of moles of…

Q: mass

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Q: 4. A solution containing 1.00 g of an unknown substance in 12.5 g of naphthalene was found to freeze…

A: step 1) Given values: Mass of unknown substance = 1.00 g Mass of naphthalene = 12.5 g ∆Tf = 75.4 C∘…

Q: A solution of 2.50 g of a compound of empirical formula C6H5P in 25.0 g of benzene is observed to…

A: Given : Tf = the freezing point of the solution     = 4.3°C  T°f = the freezing point of the pure…

Q: A solution of 4.55 g of a nonelectrolyte dissolved in 74.7 g of benzene (fp 5.50 C, K=5.12 C/m) is…

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Q: A particular unknown solid depresses the freezing point of PDB (K; = 7.1°C/molal) by 3.5°C. If you…

A: For PDB ∆Tf(PDB) = 3.5°C and Kf(PDB) = 7.1°C/molal now we will find out first molality of PDB bu…

Q: In how many grams of water should 20.10 g of potassium nitrate (KNO3) be dissolved to prepare a…

A: The concentration of a solution says about the amount of solute that is present in the solvent…

Q: A typical sugar cube is about 4.00 g of sucrose (C12H22O11). The vapour pressure of water at 25OC is…

A: Answer: When a non-volatile solute is added into a solvent it causes a decrease in it vapor pressure…

Q: Consider two solutions, one formed by adding 10 g of glucose(C6H12O6) to 1 L of water and the other…

A: a. Vapour pressure of the first solution :…

Q: A solution contains 4.20 g of a nonvolatile pure hydrocarbon in 95 g acetone. The boiling points of…

A: The elevation in boiling point depends upon the concentration of the solute in the solution and it…

Q: The mole fraction of ethanol in water is 0.3 calculate the molality os solution and the mass percent…

A: mole fraction of ethanol=0.3 therefore mole fraction of water=1-0.3=0.7

Q: Cinnamon owes its flavor and odor to the compound cinnamaldehyde (C9H8O). A solution is prepared by…

A: Boiling point elevation is one of the colligative properties of matter, i.e. it is dependent on the…

Q: What mass of ethylene glycol, C2H6O2, in grams must be added to 1kg of water for a boiling point of…

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Q: The experimentally determined freezing point of 1.90m NaCl(aq) is -6.57°C. Kf[H2O] is 1.86°C/m and…

A: The magnitude of the freezing point depression produced by a solute is found to be proportional to…

Q: An aqueous antifreeze solution is 38.5% ethylene glycol (C2H6O2) by mass. The density of the…

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Q: Determine the number of grams of water which are required to dissolve 2.0g of CuS04 , 5H2O at 100…

A: Solubility is defined as the maximum amount of solute that must be added in a known amount of…

Q: Determine the vapour pressure (mmHg) of a solution prepared by dissolving 11.2 g of glucose…

A: To solve this problem we will use the Roults law of lowering of vapour pressure .  First we will…

Q: What mass of water must be used to dissolve 20.0 grams of ethanol, C2H5OH, to prepare a 0.0500 molal…

A: Given :-  Mass of ethanol = 20.0 g  Molality of solution = 0.0500 molal or 0.0500 mol/kg  To…

Q: The molal boiling point constant for water is 0.52C/m. At what temp will a mixture of 105.0g of NaCl…

A: Given data the molal boiling point constant for water, Kb = 0.52 0C/m Mass of NaCl (solute) = 105.0…

Q: Two volatile substances are mixed with one another so that substance A has a mole fraction of 0.89.…

A: Sum of mole fractions in a mixture can be taken as 1 Mole fraction of A = 0.89 Mole fraction of B =…

Q: What mass of glucose (C6H12O6)  is required to be added to 300. g of acetic acid to create a…

A: Relative lowering in the vapor pressure of a solution is a colligative property that depends on the…

Q: If a 1-molal solution of NaCl in water shows a freezing-point depression of 3.9˚C, what is the…

A: The relationship between depression in freezing point and molality is  ∆Tf = i × Kf × m ∆Tf =…

Q: What is the expected freezing point of a solution of 17.3 mg C9H10O3 dissolved in 0.420 g camphor…

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Q: Calculate the grams of methanol (CH3OH) in a 15 molal solution where the solvent is 50 grams of…

A: Molality is defined as number of moles of solute present in 1 kg salvent.This means- Molarity=…

Q: A solution contains 3.90 g of a nonvolatile pure hydrocarbon in 95 g acetone. The boiling points of…

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Q: 4. Calculate the mole fraction of each component of a solution containing 65 g of ethanol in 350 g…

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Q: Vapor pressure of water is 31.8 torr at 30*C, how many grams of AlCl3 is needed to dissolve in 100…

A: The number of moles of Aluminum chloride and mole fraction of water is calculated as,

Q: Which compound would you expect to be more soluble in carbon tetrachloride, CH4 or NH3? Explain.

A: The rule of thumb is that "like dissolves like". Polar/ionic solvents dissolve polar/ionic solutes…

Q: How much octane (C8H18, 114.23 g/mol) would you need to dissolve in 1200 grams of benzene to…

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: 1.You have a solution which is 40.7% by mass isopropyl alcohol (MM = 60.11 g/mol) in water. The…

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Q: At 20 °C, the vapor pressure of benzene (C6H6) is 75 torr,and that of toluene (C7H8) is 22 torr.…

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Q: If the van't Hoff factor for NaCl is 1.88, what is the freezing point of a 0.50 molal NaCl solution…

A: Depression in freezing point.