Students are investigating a solvent for use in freezing point depression experiments. They measured the freezing point of the solvent as −12.6 ⁰C. The solution they made by dissolving 0.484 g of ethanol (46.07 g/mol) in 8.254 g of the solvent has a freezing point of -18.3 ⁰C.  Determine the freezing point depression constant, Kf, for the solvent.

Q: How many grams of carbon tetrachloride, CCl4, must be mixed with 72.54 g of ethyl acetate,…

A: Given : Vapour pressure of pure CCl4 = 306.0 torr. And vapour pressure of pure CH3COOCH2CH3 = 280.0…

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: Determine the freezing point of a solution consisting of 0.350 m KCl in water. The freezing point…

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Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Molar Mass of napthalene (C10H8) = 128 g/mol Molar mass of pyrene (C16H10) = 202 g/mol Mass of…

Q: Quinine is a natural product extracted from the bark of the cinchona tree, which is native to South…

A: The expression for freezing point depression due to the addition of a non-volatile solute in a…

Q: A certain substance X melts at a temperature of 7.4 °C. But if a 350. g sample of X is prepared with…

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Q: A researcher prepares a new compound and uses freezing point depression measurements to determine…

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Q: The freezing point of CCl4 is -22.92°C. Calculate the freezing point of the solution prepared by…

A: The molar mass of pyrazine is 80.09 g/mol. The number of moles of pyrazine is calculated below.

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Q: Calculate the molality of chloride ions in an aqueous solution of magnesium chloride in which the…

A:

Q: 1.812 grams of an unknown compound is dissolved into 77.7 grams of benzene, an organic solvent with…

A:

Q: The normal freezing point of a certain liquid x is -6.20 °C, but when 36. g of iron(III) chloride…

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Q: A compound contains 42.9%C,2.4%H,16.6%N, and 38.1%O by mass. The addition of 3.16 g of this compound…

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.