A solution made by dissolving 150.0 g of an unknown compound in 425.0 mL of benzene to make a solution which has a freezing point 18.6 °C lower than that of pure benzene. Kf for benzene is 5.12 °C/m and the density of benzene is 0.877 g/mL. The molality of the solution is 3.63 m. How many moles of the unknown compound were dissolved in the solution?

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A:

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Q: Calculate the molality of a solution formed by adding 8.30 g NH4Cl8.30 g NH4Cl to 14.3 g14.3 g of…

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Q: A commercial bleach solution contains 3.62 mass percent NaOCl in water. Calculate the molality of…

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Q: What is the molality of an aqueous solution that is 10.0% ethanol, C2H5OH, by mass? Select one: a.…

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A: Use simply,  Delta Tf = Kf * m

Q: 5. Calculate the molal concentration of a solution that contains 18 g of sodium hydroxide in 100 ml…

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Q: 5) The density of a 2.45 M aqueous solution of methanol (CH3OH) is 0.976 g/mL. What is the molality…

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Q: Ethylene glycol (C₂H₆O₂) is used as an additive to the water in your automobile to lower its…

A: Lowering in freezing point of a solution is:

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Q: a.) Calculate the freezing point and boiling point of the solution when you add 1.00 kg of ethylene…

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A: b)

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A:

Q: 1. 6.00 M sulfuric acid, H2SO4(aq), has a density of 1.338 g/mL. What is the percent by mass of…

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Q: 3. a. A solution contains 1.75 g of a non-volatile, non-clectrolyte solute dissolved in 23.47g…

A:

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A:

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A:

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Q: What would be the theoretical freezing point of a solution made by dissolving 5.052 g of CuCl 2 in…

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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.