A solution of HCl, 0.77% by weight, freezes at -0.805oC. Calculate the  apparent molality and the apparent molecular weight of HCl.

Q: The normal freezing point of a certain liquid X is -2.7 °C, but when 12.2 g of urea ((NH,),CO) are…

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Q: The concentration that refers to the number of equivalence per liter of the solution is called ?…

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Q: An aqueous antifreeze solution is 40.0% ethylene glycol () by mass. The density of the solution is…

A: Given data is as follows: 40 % ethylene glycol means as follows: The mass of ethylene glycol = 40 g…

Q: Calculate the molality of each of the following aqueous solutions: (a) 2.55 M NaCl solution (density…

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Q: Calculate the molality, molarity, and mole fraction of NH3 which is 12.5% by mass aq. Solution…

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Q: Students are investigating a solvent for use in freezing point depression experiments. They measured…

A: Given : Freezing point of solvent = -12.6 oC Freezing point of solution = -18.3 oC Mass of solute…

Q: Determine the freezing point of a solution that contains 83.8 g of naphthalene (C10H8, molar mass =…

A: Molality of solution can be calculated as follows:

Q: Calculate the molality of a 0.410 molar aqueous glucose solution whose density is 1.15 g/mol

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Q: A solution was prepared by dissolving 11.0 g of compound in 270.0 g of ethanol raising the boiling…

A: Given data, mass of compound= 11.0 g  mass of ethanol = 270.0 g = 0.270 Kg  (but no need of that…

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: The normal boiling point of Diethyl Ether is 35.4C. A solution of Diethyl Ether, which contains a…

A: 1- In this question, we will determine the mole fraction of Diethyl Ether ( solvent  ) in the…

Q: Consider naphthalene, C10H8. A solution of naphthalene is prepared by mixing 25.0g of naphthalene…

A: The molality of the solution is calculated as follows:

Q: At 300°K, the vapor pressure of pure benzene (C6H6) is 0.1355 atm and the vapor pressure of pure…

A: The solution of first part is given in below image

Q: Hydrochloric acid is sold as a concentrated aqueous solution of HCl with a density of 1.18 g/mL. The…

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Q: An aqueous solution contains 5% NACl by mass. Calculate the molality and mole fraction.

A: Interpretation -  To determine the molality and mole fraction of an aqueous solution contains 5%…

Q: Molarity is dependent of temperature, and also proportional to mole fraction in dilute solutions

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Q: 20g of NaCl is dissolved in 250g of water. Calculate mass percent composition of this solution

A: Step : 1           Calculate mass percent composition of this solution

Q: A solution of:...is boiled SOLVENT: Water (H2O) - 100mL or 100.00g SOLUTE: Salt (NaCl) - 11.60g…

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Q: a) A solution containing 3.50 g of solute X in 50.0 g of water has a volume of 52.5 mL and a…

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Q: Reagent nitric acid is 70.40% HNO3 by mass and its molarity is 16M. Calculate following: density in…

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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 solution consisting of 0.278 mol of methylbenzene, C6H5CH3, in 244 g of nitrobenzene, C6H5NO2,…

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Q: When dissolved in water, which pair of solutions should lower the vapor pressure of the solvent…

A: Lowering of vapour pressure is a colligative property

Q: Which of the following factors affect the solubility of a gas in a liquid solvent? l. Pressure II.…

A: Solubility is the ability of a solid, liquid, or gaseous chemical substance (referred to as the…

Q: Calculate the molality of a solution that is prepared by mixing 25.5 mL of CH3OH (d = 0.792 g/mL)…

A: The answer is given as follows

Q: Why does the freezing point of a pure solvent remain as a constant value but the freezing point of a…

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Q: What is the effect on the vapor pressure of a solution with particularly strong solute-solvent…

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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: What would be the theoretical freezing point of a solution made by dissolving 10.75 g of CoCl 2 in…

A: Since you have posted multiple questions, we will answer the first one for you. Kindly post the…

Q: Calculate the molality of a solution that is prepared by mixing 25.5 mL of CH 3OH (d= 0.792 g/mL)…

A: Given: volume of CH3OH = 25.5 mL density of CH3OH = 0.792 g/mL volume of CH3CH2CH2OH = 387 mL…

Q: Why is the vapor pressure of a solution different from the vapor pressure of the pure liquid…

A: While adding the non-volatile solute into the solvent, the tendency of solvent molecule to evaporate…

Q: Which statement is false? The vapor pressure of a solvent over a solution is less than that of pure…

A: a. According  to colligative properties , vapour pressure of a solvent over solution is lesser than…

Q: When dissolved In water, which pair of solutions should lower the vapor pressure of the solvent…

A: The colligative properties are those properties of solutions that depend on the number of solute…

Q: Consider two solvents: Solvent X has a higher freezing point depression constant than Solvent Y. A…

A: We would use formula of freezing point depression to determine which solution would have lower…

Q: Sodium hydroxide is available commercially as 50.0% by weight aqueous solution. Calculate the…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: An automobile antifreeze mixture is made by mixing equal volumes of ethylene glycol  (d = 1.114…

A: (a) Consider the volumes of ethylene glycol and water to be 1 L each. The mass of ethylene glycol…

Q: A solution is made using 256.0 mL of phenol (density 1.070 g/mL) and 400.0 mL of water (density…

A: Molality: it is a concentration term. It may be defined as no. of moles of solute present per…

Q: Explain why it is the freezing point depression of a solvent does not depend on the identity of the…

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Q: 1. What is the molality of a solution containing 48.2g of CaO in 392g of solvent? 2. What is the…

A: Given data: 1) Weight of CaO = 48.2 g Weight of solvent = 392 g 2) Moles of solute = 4.79 moles…

Q: Calculate the molality of a solution that is prepared by mixing 25.5 mL of CH 3OH (d = 0.792 g/mL)…

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Q: Which statement properly describe Roult's Law? Raoult's law states that the vapor pressure of a…

A: Roult's law says that the vapour pressure of the pure solvent decreases when some amount of…

Q: Which of the following statements is NOT true? A. Dissolution and crystallization are opposite…

A: We have to tell among the given statements which one is not correct. The given statements are…

Q: The molal concentration of a solution made by dissolving 3.5 g of CaCl2 (110.98 g/mol) in 353 g of…

A: Given :- mass of CaCl2 = 3.5 g  Mass of water = 353 g  To calculate :- molality of molal…

Q: The density of an aqueous solution containing 15.0 percent ethanol (C2H5OH) by mass is 0.974 g/mL.…

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Q: Reset Help 0.020 MNH4CI - solution that is most strongly dependent upon pressure 1. 0.0050 MCO2 2. -…

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Q: added to a solvent such as water, which of the following boiling points is not reasonable for the…

A: As we know,  if we add Non-volatile solute in water , elevation in boiling point takes place. So,…

Q: Calculate the freezing point in degree celcius of a solution containing 54.1g of CCl4 (molar mass =…

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Q: At 300°K, the vapor pressure of pure benzene (C6H6) is 0.1355 atm and the vapor pressure of pure…

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Q: A solution is prepared by mixing 50.0 mL toluene (C6H5CH3, density = 0.867 g/mL, 92.13 g/mol) with…

A: Mass percentage of toluene: Mass% = Mass of toluene in the solutionSum of masses of all components…