Questions from General Chemistry

Q: Although the equilibrium constant for a given reaction always has the same

Although the equilibrium constant for a given reaction always has the same value at the same temperature, the actual concentrations present at equilibrium may differ from one experiment to another. Ex...

Q: Compare homogeneous and heterogeneous equilibria. Give a balanced chemical equation and

Compare homogeneous and heterogeneous equilibria. Give a balanced chemical equation and write the corresponding equilibrium constant expression as an example of each of these cases. How does the fact...

Q: In your own words, paraphrase Le Châtelier’s principle. Give an

In your own words, paraphrase Le Châtelier’s principle. Give an example (including a balanced chemical equation) of how each of the following changes can affect the position of equilibrium in favor of...

Q: Explain how dissolving a slightly soluble salt to form a saturated solution

Explain how dissolving a slightly soluble salt to form a saturated solution is an equilibrium process. Give three balanced chemical equations for solubility processes and write the expressions for Ksp...

Q: For each of the following, calculate the indicated quantity.

For each of the following, calculate the indicated quantity. a. [OH-] = 2.11 * 10-4 M, [H+] =? b. [OH2] = 7.34 * 10-6 M, pH 5 ? c. [OH2] = 9.81 * 10-8 M, pOH 5 ? d. pH = 9.32, pOH =? e. [H+] = 5....

Q: Calculate the pH and pOH values for each of the following solutions

Calculate the pH and pOH values for each of the following solutions. a. 0.00562 M HClO4 b. 3.98 * 10-4 M KOH c. 0.078 M HNO3 d. 4.71 * 10-6 M Ca(OH)2

Q: The solubility product of magnesium carbonate, MgCO3, has the value

The solubility product of magnesium carbonate, MgCO3, has the value Ksp = 6.82 * 10-6 at 25 0C. How many grams of MgCO3 will dissolve in 1.00 L of water?

Q: Describe a buffered solution. Give three examples of buffered solutions.

Describe a buffered solution. Give three examples of buffered solutions. For each of your examples, write equations and explain how the components of the buffered solution consume added strong acids o...

Q: What are some of the general properties of gases that distinguish them

What are some of the general properties of gases that distinguish them from liquids and solids?

Q: How does the pressure of the atmosphere arise? Sketch a representation

How does the pressure of the atmosphere arise? Sketch a representation of the device commonly used to measure the pressure of the atmosphere. Your textbook described a simple experiment to demonstrate...