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#### Q. A chemistry student is given 250.0 mL of clear aqueous solution at 42 C. He is told an unknown amount of a certain compound X is dissolved in the solution. The student allows the solution to cool to 25C. At that point, the student sees that a precipitate has formed. He pours off the remaining liquid solution, throws away the precipitate and evaporates the remaining liquid solution under vacuum. More precipitate forms. The student washes, dries, and weighs the additional precipitate. It weighs 8.75 g. Using only the information above, can you calculate the solubility of X at 25C? If yes, calculate it.

Solved • Sep 28, 2019

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#### Q. A chemist student weighs out 24.0 g of an unknown solid compound X and adds it to 2.00 L distilled water at 24 degrees C. After 10 minutes of stirring, all of the X has dissolved. Just to be sure, the student adds a further 25. mg of X to the solution, and it, too, dissolves. Using only the information above, can you calculate the solubility of X in water at 24 degrees C? If you said yes, calculate it. Be sure your answer has a unit symbol and the right number of significant digits.

Solved • Sep 14, 2019

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#### Q. Calculate the volume of a saturated solution of O in acentonitrile that would contain 24g of O at this temperature

Solved • Sep 15, 2019

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#### Q. The solubility of silver sulfate in water is 5.05 grams per liter. If a silver sulfate solution had a concentration of 4.70 grams per liter, it would be said to be relatively ____.

Solved • Aug 30, 2019

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#### Q. The solubility of magnesium carbonate in water is 0.533 grams per liter. if a magnesium carbonate solution had a concentration of 0.533 grams per liter, it would be said to be ____.

Solved • Aug 30, 2019

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#### Q. A chemist prepares a solution of mercury(I) chloride Hg2C12 by weighing out 0.537 mg of mercury(I) chloride into a 400. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in g/dL of the chemist's mercury(I) chloride solution. Round your answer to 3 significant digits

Solved • Jul 21, 2019

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#### Q. 5) Draw a diagram showing the solvation of Na+ and Cl- ions in water

Solved • Jun 25, 2019