molality   m mole fraction   molarity

Q: Solution of ethanol in water was found to be 35.9% ethanol by mass. What is the molarity and  mole…

A: We have to predict the Molarity and mole fraction of ethanol.

Q: A solution is made by mixing 55.9 g acetone (CH 3 COCH 3 ) and 55.9 g methanol (CH 3 OH). What is…

A: Dalton's law of partial pressure:- This law states that total pressure of the mixture of gases…

Q: Pentane (C5H12) and hexane (C6H14) form an ideal solution. At 25°C the vapor pressures of pentane…

A: Raoult's Law of Ideal solution states that mole fraction of solvent is directly proportional to the…

Q: An aqueous solution is 26.9 % lithium chloride, LiCl, by mass. The density of the solution is 1.127…

A: Assuming we have 100 g of solution Since % by mass is defined as  % by mass = mass of solute X 100 /…

Q: Calculate the molality and van't Hoff factor (i) for the following aqueous solution: 0.750 mass %…

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

Q: Determine the freezing point of an aqueous solution containing 2.9 kg of glucose, 180.16 g/mol)…

A: Given : Mass of water = 6.5 Kg  And mass of glucose = 2.9 Kg = 2900 g…

Q: Define the following terms :(i) Mole fraction (ii) Ideal solution(b) 15.0 g of an unknown molecular…

A: (i) Mole fraction It is defined as the no. of moles of a particular solute or component present in…

Q: Pentane ( CH2) and hexane ( CH14) form an ideal solution. At 25°C the vapor pressures of pentane and…

A: The no of moles of pentane and hexane are calculated as follows: Mass = Density × Volume n…

Q: A 100.0-g sample of a brand of rubbing alcohol contains 66.2 g of isopropyl alcohol, C3H7OH, and…

A: Given: Mass of isopropyl alcohol= 66.2g Mass of water=33.8g

Q: Calculate the mole fraction and molality of a solution that contains 0.850 g of ammonia, NH 3,…

A: Given that: Mass of ammonia = 0.850g  Mass of water = 125g  We know : Molar mass of NH3 = 17g/mol…

Q: An aqueous antifreeze solution is 37.4% ethylene glycol (C₂H5O₂) by mass. The density of the…

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Q: An aqueous solution contains 82.5 g of isopropyl alcohol (C3H7OH) in 218.5 g of solution. What is…

A: given mass of isopropyl alcohol = 82.5 g mass of solution = 218.5 g standard values molar mass of…

Q: Which of the following concentration measures will change in value as the temperature of a solution…

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Q: A 0.350M solution of Lactose, C12H22O11 in water has a density of 1.0532 g/mL at 22oC. What is the…

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Q: Density of Mole fraction of Molarity Molality % by Mass ppm solution solute

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Q: An aqueous antifreeze solution is 44.0% ethylene glycol (C2 H6 O2) by mass. The density of the…

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Q: Match the following aqueous solutions with the appropriate letter from the column on the right. A.…

A: The boiling point of any solution is given by, => boiling point of solution = boiling point of…

Q: Calculate the molality and van’t Hoff factor (i) for the fol-lowing aqueous solutions:(a) 0.500 mass…

A: Molality: Molality is defined as the moles of solute in 1 kilogram of solvent. It is given by,…

Q: Density of Mole fraction of Molarity Molality % by Mass ppm solution solute 1.05 1.13

A: Given that:  Density of KOH solution : 1.05g/ml Molarity = 1.13M = 1.13mol/L Molar mass of KOH =…

Q: 10% (w/w) aqueous potassium iodide has a density of 1.202 g/ml. Which of the following statements is…

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Q: 25 g

A: According to the question, at 18.5 degree celsius, the solubility of calcium nitrate, Ca(NO2)2 is…

Q: A mixture is made by mixing equal volumes of corn syrup (d = 1.4 g/mL, C6H14O7) and water (d = 1.00…

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

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Q: An aqueous solution that is 4.61% NaOH by mass has a density of 1.06 g/mL.  Calculate the molarity…

A: Given,  Mass percentage of NaOH = 4.61%  Density = 1.06 g/mL  Calculate  a). Molarity = ?  b). Moles…

Q: 3. Calculate the molarity, molality and mole fraction of water in each of these solutions Solute…

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Q: Ethanol, CH3 CH2OH, is known as grain alcohol and is the alcohol found in alcoholic beverages.…

A: Molar mass of ethanol = Atomic mass of C X 2 + Atomic mass of H X 6 + Atomic mass of O = 12 X 2 + 6…

Q: What is the mass percent of an aqueous sodium hydroxide solution in which the mole fraction of NaOH…

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Q: Calculate the molality of a 2.92 M potassium nitrate solution in which methanol, not water, is the…

A: To solve this problem we have to calculate the mass of solvent and number of moles of Solute .

Q: Complete the following table for aqueous solutions of potassium hydroxide. Show complete solution.…

A: Given, The density of the solution = d = 1.43 Molality = m = 1.13  Molar mass of KOH = 56.11 g/mol…

Q: Calculate the freezing point of an acqueous solution containing 10.50 g of MgBr2 in 200 g of water.…

A: The temperature at which a liquid becomes a solid is called freezing point. Given that, Mass of…

Q: True or false? The molatlity of an aqueous NaCl solution that freezes at -1C is equal to the…

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Q: A solution with 1.0 mol C2H5OH in 100g of solvent has the same molality as a solution with 1.0 mol…

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Q: Pentane (C;H12) and hexane (C,H14) form ideal solution. At 25°C the vapor pressure of pentane and…

A: According to Raoult's law the partial pressure of a solution is equal to the product of the mole…

Q: A solution of 4.55 % phenol (C6H6O) solution by mass in carbon tetrachloride, CCl4.  The density of…

A: The following formulas are used to calculate the Molarity, Molality and Mole fraction of any…

Q: 2. Complete the following table for aqueous solutions of caffeine, CaHioO2N4. Mass Percent Solvent…

A: We have to complete the following table for aqueous solutions of Caffeine, C8H10O2N4 Given :…

Q: Calculate the mole fraction of each component of a solution containing 65 g of ethanol (C 2 H 6 O)…

A: Mole fraction is given by the ratio of number of moles of one component to total number of moles of…

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: An aqueous antifreeze solution is 44.0% ethylene glycol ( C2 H6 O2) by mass. The density of the…

A: The mass of ethylene glycol present in 100 g of solution is 44 g. The mass of water (solvent)…

Q: Match the following aqueous solutions with the appropriate letter from the column on the right. | 1.…

A: 1. 0.16 m Zn(NO3)2   Van't Hoff factor i = 3 Elevation in boiling point constant for water Kb =…

Q: What is the mole fraction, X, of solute and the molality, m (or b), for an aqueous solution that is…

A: Given: mass % of NaOH=  14% To find: i) mole fraction X =? ii) molality, m= ?? We know that, Molar…

Q: A 125.0 g aqueous solution contains 64 g ethanol (C2H5OH). What is the mole fraction of ethanol in…

A: Calculate the moles of ethanol,        Moles of ethanol = mass of ethanolmolar mass of ethanol= 64.0…

Q: What is the mole fraction of ethanol in a solution made by dissolving 51.2 g of ethanol, C2H5OH, in…

A: We have to calculate the ethanol.

Q: A solution is prepared by dissolving 8.28 g of ordinary sugar (sucrose, C12H2,011, molecular weight…

A: Depression in freezing point  by using this formula we can calculate freezing point

Q: 400g of NaF are disolved in 2 kilograms of water. The solutions density in this condition is…

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Q: What is the mole fraction of ethanol of an aqueous solution that is 20% ethanol?

A: Given : Ethanol = 20%

Q: Fill in the table below for aqueous NAOH solutions Molality 2 molal Molarity % mass/mass Mole…

A: 1.  denominator of the given term is let 1 and other terms can be calculated . 2. For inter…

Q: You have a solution which is 49.0% by mass isopropyl alcohol (MM = 60.11 g/mol) in water. The…

A: Calculate the moles of isopropyl alcohol and water,

Q: A 100.0-g sample of a brand of rubbing alcohol contains 66.5 g of isopropyl alcohol, C3H7OH, and…

A:

Q: Calculate the molality and van’t Hoff factor (i) for the fol-lowing aqueous solutions:(a) 1.00 mass…

A: Given: Mass fraction of NaCl = 1.00 %                      Freezing point  = 0.593°C   Mass fraction…