what mass of water should be used to dissolve 20 grams of ethanol, to prepare 0.0500 molal solution of ethanol

Q: The van der Walls attraction between similar colloidal particles in a solvent is always smaller than…

A: Vanderwaals forces are the interactive forces between similar particles and molecules of matter.

Q: Solutions of hydrogen in palladium may be formed by exposing Pd metal to H2 gas. The concentration…

A: Given : Mass of hydrogen dissolved = 0.94 g And mass of palladium metal = 215 g

Q: he boiling point of diethyl ether, CH3CH2OCH2CH3, is 34.50°C at 1 atmosphere. A nonvolatile,…

A: Given : boiling point of pure solvent i.e diethyl ether = 34.50 oC Mass of solute i.e chlorophyll =…

Q: Describe the factors that affect the solubility of a solid in a liquid. What does it mean to say…

A: There are following factors which affect the solubility of solid in a liquid -  (1) Temperature -…

Q: A solution that contains 16.6 g of a covalent compound dissolved in 500. g of benzene freezes at…

A: Given,           Weight of the covalent compound (W2) = 16.6 g           Weight of the solvent…

Q: An ethylene glycol solution contains 21.2 g of ethylene glycol (C2H6O2) in 85.4 ml of water.…

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Q: ((CH,),co): is measured to be 466. mmHg. Suppose a solution is prepared by mixing 134. g of At a…

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Q: Calculate the molality of solution consisting of 2.522 moles of water and 33.8 moles of ethanol.…

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Q: imagine two solutions with the same concentration and the same boiling point, but one has benzene as…

A: Colligative properties are the properties which depend on the number of atoms or molecules or ions…

Q: List the three kinds of intermolecular interactions involved in solution formation?

A: The three kinds of intermolecular interactions involved in formation of solution has to be listed.

Q: 3.140 molal solution of NaCl is prepared. How many grams of NaCl are present in a sample containing…

A: The question is based on the concept of solutions. molality is defined as number of moles of solute…

Q: A solution is prepared by condensing 5.25 L of a gas, measured at 21.0°C and 737 mmHg pressure, into…

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Q: ) A solution is prepared by dissolving 30.6 g sucrose (C12H22O11) in 405 g of water.Determine the…

A: Calculate number of moles of sucrose and water:

Q: Calculate the boiling and freezing points of 0.221 mol/kg aqueous solutions of NaCl and of CaCl2.…

A: Given data,molality of NaCl=0.221mol/Kgmolality of…

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: 80.0 g of non-volatile maltose (molar mass = 342.34 g/mol) is added to 152 g of water (molar mass =…

A: The expression that can be used to determine the vapor pressure of the resulting solution is the…

Q: Calculate the molality of a solution that contains 1.43 g carvone in 15.2 mL of ethanol (density…

A: Molar mass of carvone is 150.22 g/mol.Number of moles of carvone can be determined as follows,

Q: lowest freezing point

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Q: Determine the molality of a solution containing 30g of NaOH (40 g/mol) and 750 mL of water at 91 ⁰C.…

A: Molality of solution is defined as number of moles of solute dissolved per kilogram of solvent.

Q: Determine the mass of LiBr required to produce a 0.4889 molal solution by dissolving LiBr in…

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Q: Calculate the mass of ethylene glycol (formula mass = 62.1 g/mol, an antifreeze component, that must…

A: The properties associated with the solution that is altered by the addition of the non-volatile…

Q: A solution is prepared by dissolving 20.5g of LiF in 340.00g water. a. What is the concentration of…

A: a) Given, Mass of LiF = 20.5 g Mass of water = 340.00 g Concentration of the solution in (% by mass)…

Q: A 125.0 g of aqueous solution contains 64 g of ethanol. What is the mole fraction of ethanol in the…

A: Mole fraction represents the number of moles of a particular component in a mixture divided by the…

Q: Please help me

A: The number of moles of solute to the weight of the solvent in (kg) is known as molality.

Q: Concentration of NaOH in HCl is 2.57% by mass. Density of HCl is 1.2g/cc. Determine molality of…

A: Relationship between %by mass and molality m=%by weight×1000/Molar mass of NaOH×(100−%by weight)…

Q: What mass of BaCl2 is needed to be dissolved in 1200 g of water to prepare 0.5-molal BaCl2 solution?

A: Molality is defined as the moles of solute that are present in 1 kg of solvent. The formula for…

Q: Complete the following table for aqueous solutions of caffeine, C8H10O2N4.

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

Q: B. Calculate the boiling point and freezing point of the following solution 1. 0.575 molal aqueous…

A: Given: (1) Molality of the solution= 0.575 molal (2) Mass of C6H12O6 = 10 g Mass of water= 259 g (3)…

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: mass percent

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Q: 10.0 mL of ethanol (p = 0.789 g/mL, 46 g/mol) was added to 90.0 mL of water (p = 1 g/mL, 18 g/mol)…

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Q: What is 1molal solution?

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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 molality of NaCl is required to increase the boiling point of 500 g of water to 105°C? (K, is…

A: Given: The boiling point of the solution = 105°C Mass of water = 500 g Standard data: Kb for…

Q: The van der Walls attraction between similar colloidal particles in a solvent is always bigger than…

A: Vanderwaals forces are the interactive forces between similar molecules of a matter and depend on…

Q: Please help

A: The molality (m) of the solution is calculated as shown in equation (1) where m is the magnesium…

Q: how would you prepare a 1.50 molal solution of sucrose in water ? at what temperature would the…

A: The concentration is also expressed in terms of molality. The formula of molality is as follows, To…

Q: a mixture of ethanol and water has a freezing point of -16.0 degrees celsius. what is the molality…

A: We have to determine the molality of the alcohol and what is the weight % of alcohol in the solution…

Q: Calculate the mass percent of the solute in a solution containing 19.5 g NH4Cl in 485 g of water.…

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Q: A 30.0 mL sample of this aqueous HX solution freezes at – 0.186 oC. What is the molar mass of HX?

A: Molality is a measure of number of moles of solute present in 1 kg of solvent.

Q: Consider a solution of MgCl2(aq) with a molality of 0.00245 mol kg-1 Calculate the freezing point of…

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Q: The vapor pressure of pure benzene (C6H6, 78.1 g/mol) is 0.53 atm at 61 ºC. The vapor pressure at 61…

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Q: A solution of calcium nitrate in water is found to have a melting point of -0.87 °C. What is the…

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Q: Why are density and viscosity of a solution not considered colligative properties?

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Q: Calculate the mass of water, in grams, needed to prepare a 0.345 molal solution of sodium nitrate…

A: Since molality is defined as  Molality  = moles of solute / Mass of solution in Kg  Since mass of…