Water is a polar solvent and hexane (C 6H 14) is a nonpolar solvent. Which of the following correctly describes the solubility of the solute? SiH4 , soluble in water CaCl2, soluble in hexane octane, soluble in water mineral oil, soluble in water KNO3, soluble in water

16. Choose the statement that defines freezing point depression. an increase in the freezing point of a solvent when a solute is added to it an increase in the freezing point of a solute when a solvent is added to it a decrease in the freezing point of a solvent when a solute is added to it a decrease in the freezing point of a solute when a solvent is added to it

Which of the following will increase the solubility of a solid solute, such as KCI, in water? stirring the mixture using smaller particles increasing the temperature of the solvent decreasing the temperature of the solvent

If 11.2 g of naphthalene, C 10H 8 (Molar mass= 128 g/mol), is dissolved in 107.8 g of chloroform, CHCI 3 (Molar mass = 118 g/mol), what is the molality of the solution? 0.0875 m 12.4 m 0.811 m 0.0941 m 0.0969 m

Which of the following statements concerning factors that affect solute solubility is incorrect?  Gaseous solutes become less soluble in water with increasing temperature Most solid solutes become less soluble in water with decreasing pressure Most Solid solute become more soluable in water with increasing temperature Gaseous solutes become more soluable in water with increasing pressure

Of the following solutions, which one would you expect solid silver chloride to be the least soluble in at room temperature? Group of answer choices Silver chloride will not be soluble in any of the 4 solutions. 0.2 M AgNO3 0.3 M NaCl 0.2 M CaCl2 0.2 M HCl

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At room temperature and an oxygen pressure of 1 atm, the solubility of oxygen in water is 1.35 x 10-3 mol/L. Calculate the concentration of dissolved oxygen in water under atmospheric conditions if the partial pressure of oxygen is 0.25 atm.

When 15.0 g of an organic compound known to be 54.53% C, 9.2% H, and 36.32% O by mass is dissolved in 721.4 g of water, the freezing point is -0.293 °C. The normal freezing point of water is 0 °C. What is the molecular formula for the organic compound? Assume that the organic compound is a molecular solid and does not ionize in water. Kf values for various solvents are given in the colligative constants table. molecular formula: CHO