You get to learn all about solutions and their basic properties, including their freezing point and electrical conductivity. Discover a few ways to even make things dissolve faster.
After completing this tutorial, you will be able to complete the following:
Which solutions conducted electricity and caused the light bulb to glow? Why?
~ The salt water, water with lemon (acid-water), and water with soap (base-water) solutions caused the light bulb to glow. Salt crystals are ionized when dissolved in water. Ions transmit electrical currents because they are positively and negatively charged particles. The same is true for water solutions with lemon (acid) and with soap (base).
What is the difference between electrolyte and nonelectrolyte solutions?
~ Electrolyte solutions are solutions that are ionized when dissolved. They are composed of ionic compounds, such as salt water, water with lemon (acid), and water with soap (base). Nonelectrolyte solutions maintain their molecular structure when dissolved and do not conduct electricity. Examples include water with sugar and water with alcohol.
|Approximate Time||2 Minutes|
|Pre-requisite Concepts||Students should be able to define electrolyte, non-electrolyte, and ionic solution.|
|Type of Tutorial||Animation|
|Key Vocabulary||electrolyte, non-electrolyte, ionic solution|