How valuable is the common ion effect to our understanding of solubility equilibrium?
Let’s say you are an avid money collector. Whether it’s Indian, English, Chinese, American -- doesn’t matter, as long as it’s money! You usually organize your money into two categories: bills and coins. Since you keep decent track of your prized collection, you know that you have exactly 10,000 different coins and 1,000 different bills. You love your collection very much, but sometimes you like to have the kind of money that you can spend. This weekend, there is an Australian Expo down at the fairgrounds, and you happen to have some rare pieces -- surely you’ll take up this opportunity!
- Try this problem: The Ksp for silver carbonate is 8.4 × 10-12. The concentration of the carbonate ions in a saturated solution is 1.28 × 10-4 M. What is the concentration of the silver ions? Look up the named ions if you are unfamiliar with their formulas. Or, you may refer to the links in the "Resources" section.
- Research: What are some real-world benefits of the common ion effect? You may use the links in the "Resources" section.
- Research: The world of chemistry is filled with special cases and exceptions. Are there any exceptions to the common ion effect? You may use the links in the "Resources" section.