Questions from General Chemistry

Q: Suppose a reaction has the equilibrium constant K = 1.3

Suppose a reaction has the equilibrium constant K = 1.3 * 108. What does the magnitude of this constant tell you about the relative concentrations of products and reactants that will be present once e...

Q: Explain why the equivalent weight of H2SO4 is half the molar mass

Explain why the equivalent weight of H2SO4 is half the molar mass of this substance. How many hydrogen ions does each H2SO4 molecule produce when reacting with an excess of OH- ions?

Q: Explain how the dissolving of an ionic solute in water represents an

Explain how the dissolving of an ionic solute in water represents an equilibrium process.

Q: Why does the amount of excess solid solute present in a solution

Why does the amount of excess solid solute present in a solution not affect the amount of solute that ultimately dissolves in a given amount of solvent?

Q: The “Chemistry in Focus” segment Green Chemistry discusses the use

The “Chemistry in Focus” segment Green Chemistry discusses the use of gaseous carbon dioxide in place of CFCs and of liquid carbon dioxide in place of the dry-cleaning chemical PERC. Would you expect...

Q: For each of the following solutions, the mass of solute taken

For each of the following solutions, the mass of solute taken is indicated, along with the total volume of solution prepared. Calculate the normality of each solution. a. 0.113 g NaOH; 10.2 mL b. 12...

Q: Ksp for copper(II) hydroxide, Cu(OH)

Ksp for copper(II) hydroxide, Cu(OH)2, has a value 2.2 * 10-20 at 25 °C. Calculate the solubility of copper(II) hydroxide in mol/L and g/L at 25 °C.

Q: Most hydroxides are not very soluble in water. For example,

Most hydroxides are not very soluble in water. For example, Ksp for nickel(II) hydroxide, Ni(OH)2, is 2.0 * 10-15 at 25 °C. How many grams of nickel(II) hydroxide dissolve per liter at 25 °C?

Q: The solubility product constant, Ksp, for calcium carbonate at room

The solubility product constant, Ksp, for calcium carbonate at room temperature is approximately 3.0 * 10-9. Calculate the solubility of CaCO3 in grams per liter under these conditions.

Q: A solution of the sparingly soluble base Ca(OH)2

A solution of the sparingly soluble base Ca(OH)2 is prepared in a volumetric flask by dissolving 5.21 mg of Ca(OH)2 to a total volume of 1000. mL. Calculate the molarity and normality of the solution....