An aqueous solution contains 3.9% NaClNaCl by mass. Calculate the molality of the solution. Calculate mole fraction of the solution.

Q: An aqueous solution of HCL is found to have a molarity of 12.1M. Given the density of the solution…

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Q: Determine the molality of a solution in which 28.1 grams of glucose C6H1206 are dissolved in…

A: Applying concept of molarity and molality.

Q: A solution is prepared by dissolving 19.3 g of ethylene glycol, C2H6O2, in 50.0 g of water.…

A: The concentration of any substance can be expressed in different ways such as molality, molarity,…

Q: Describe a method for purifying colloidal solutions.

A: Dialysis is the process which is used for the separation of colloidal solutions by filtration or…

Q: The density of an aqueous solution containing 40.0% sulfuric acid (H2SO4) by mole is 1.681 g/mL. a)…

A: Given :-  Mass percent of H2SO4 = 40.0%  Density of aqueous H2SO4 solution = 1.681 g/mL  Molality =…

Q: A solution was made by dissolving 8.01 g sodium chloride (NaCl) in 46.5 g water (H2O). What is the…

A: Given: Mass of sodium chloride (NaCl)=8.01 g Mass of water (H2O)=46.5 g The molar mass of sodium…

Q: A solution is prepared by dissolving 25.0 g of NH3 in 250.0 g of water. The density of the resulting…

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Q: Calculate the molality of a 1.76M aqueous solution. The solute has a molar mass of 120.5g/mol, and…

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Q: Can you calculate the percent composition by mass of a solution given only the molality of the…

A: Molarity is defined as number of moles of solute dissolved per litre of solution.

Q: A solution is made by dissolving 25 grams of sodium chloride in enough water to make one liter.…

A: Solution is made up of two components which are solute and solvent. Solute is present in the minor…

Q: A solution contains 22.5 g of methanol, CH3OH , dissolved in sufficient water to give a total mass…

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Q: What is the molality of a 30.0% by mass hydrochloric acid solution? The density of the solution is…

A: Given: The density of the hydrochloric acid solution is 1.1493 g/mL The mass percentage of the…

Q: The concentrated sulfuric acid we use in the laboratory is 98.0 percent H2SO4 by mass. Calculate the…

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Q: Explain below the effect of adding a non-volatile solute to a volatile solution would have on vapor…

A: The compounds which gets vaporize easily are termed as volatile. The volatility of compounds…

Q: A student dissolves 11. g of aniline (C,H,NH,) in 250. mL of a solvent with a density of 1.12 g/mL.…

A: Molarity of solution is defined as number of moles of solute dissolved per litre of solution and…

Q: 1. A solution contains 15.37 grams of NaCl in 0.621 kg water at 25 °C. What is the vapor pressure of…

A: 1. A solution contains 15.37 grams of NaCl in 0.621 kg water at 25 °C. We have to calculate the…

Q: A 4.10 molal solution of NaOH has a density of 1.21 g/ml. What is the molar concentration of the…

A: The given data is as follows: The molality of NaOH solution = 4.10 molal The density of solution =…

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: Calculate The MASS-VOLUME PERCENT of 5g of MgCl2 to make 250mL of aqueous solution.

A: We know that ; Mass - volume percent = (Mass of Solute/volume of solution)× 100% By using this…

Q: A solution is prepared by mixing 1.00 g of ethanol (C2H5OH) with 100.00 g of water to give a final…

A: In order to calculate the molarity and the mole fraction we first write down the given data: Mass of…

Q: Determine the molality of a solution made by dissolving 4.50g of NaCl in 650.0 mL of ethanol.…

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Q: The molarity of a potassium fluoride solution is 3.75. Calculate the mole fraction of potassium…

A: Moles fraction of a solute is determined by the following formula mole fraction =moles of…

Q: A sample of 0.892 g of potassium chloride (KCl) is dissolved in 54.6 g of water (H2O). Determine the…

A: The mass of solute is = 0.892 g The mass of solvent, water is = 54.6 g The mass percent of the…

Q: Determine the molarity and mole fraction of a 1.03 m solution of acetone (CH3COCH3) dissolved in…

A: Given,the molality of the acetone solution = 1.03 mdensity of acetone = 0.788 g/cm3density of…

Q: What is the molality of the solution prepared by dissolving 78 g ethylene glycol in 1500 g of water?

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Q: What is the molality of nitric acid in a concentrated solution of nitric acid (68.0% HNO3 by mass)?…

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Q: What is the molality of an aqueous solution of sucrose that is 12.5% sucrose by mass?

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Q: Calculate the molality of a sulfuric acid solution containing 24.4 g of sulfuric acid in 198 g of…

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Q: Calculate the molality of a 27.0% (by mass) aqueous solution of nitric acid.

A: If the total mass of nitric acid is 100 g, then it contains 27.0 g nitric acid and 73 g water.…

Q: The molality of potassium bromide, KBr, in an aqueous solution is 2.62 mol/kg. What is the mole…

A: 2.62 moles of KBr are present in 1000 g of water. The number of moles of water can be calculated as…

Q: A solution of sodium chloride in water has a vapor pressure of 19.6 torr. What is the mole fraction…

A: Given data, The vapor pressure of pure water = 23.8 torr. The vapor pressure of solution = 19.6…

Q: You have a solution of 10.0 g of sucrose in 100.0 of water. Calculate the molality based on the…

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Q: Why is it necessary to express the concentration of solute in units of molality rather than…

A: Given : We have to tell why there is need to tell mass of solute in terms of molality .

Q: Determine mass percent of a solution of sucrose (C12H01) prepared by dissolving 3.245 g of C12H,O in…

A: mass percent is way to express concentration of solute in a solution

Q: A solution is 50% by mass formaldehyde (H2CO) with the remaining mass being water.  Calculate the…

A: Let us assume the mass of compound HCHO= 100 g

Q: Nitric acid is usually available in a concentrated form of 70.3% by mass aqueous solution with a…

A: Concentration of nitric acid= 70.3 % by mass Density= 1.41 g/mL We have to calculate the molarity…

Q: One gram of aluminum nitrate is dissolved in 2.19 liter of water at 20.0 °C. The density of water at…

A: given mass of aluminium nitrate = 1 g density of water = 0.9982 g/cm3 density of solution = 0.9989…

Q: 19.49 grams of potassium phosphate, K;PO, (212.264 g/mol) is dissolved in 485 grams of water.…

A: We have given that  Mass of potassium phosphate = 19.49g  Molar mass of potassium phosphate =…

Q: A solution of LiCl in water is 25.3 % LiCl by mass. What is the mole fraction of the compound LiCl?…

A: Answer: Mass % of 25.3 means in 100g solution 25.3g LiCl is present. Now we have to use this mass…

Q: When 4.30 g4.30 g of a nonelectrolyte solute is dissolved in water to make 935 mL935 mL of solution…

A: We have the equation relating the osmotic pressure with concentration as  π = cRT  Where, c =…

Q: Determine the vapor pressure of a solution at 55°C that contains 34.2 g NaCI in 375 mL of water. The…

A: Given that:  Mass of NaCl = 34.2g  Volume of water solvent = 375ml = 375g Molar mass of NaCl =…