Alka Seltzer Water

By: Jon Smith, Connor Morgan, Kevin Roberts, Tyler Peacock

Background Info

When a substance dissolves in a solution it becomes a solute. The substance that dissolves the solute is called a solvent. The rate at which something dissolves varies depending on temperature, stirring, and surface area of the solute. The maximum amount of a solvent that can dissolve in a given amount of solvent is called solubility. The Collision Theory is when the particles in a substance vibrate fast and collide with each other due to the substance they interact with. The Kinetic Theory is when particles are launched into each other causing the substances to deteriorate.

Experimental Design

In this experiment we will put Alka Seltzer into water to test the dissolving rate at two different temperatures. We will need water, beakers, a hot plate, pencil, paper, and Alka Seltzer. The only thing that will be changed is the temperature of water.

Hypothesis: If the temperature of the water is higher, the Alka Seltzer will dissolve at a faster rate.

Big image


The Alka Seltzer dissolved faster in hotter water. The particles were reacting faster due to the heat and the kinetic energy was higher. This led to the Alka Seltzer dissolving at a faster rate. The place most likely to have a mistake would be the water amount. This experiment gives an idea of how things dissolve and can be used in real world applications. An example would be making tea.

We made this project

Tyler Peacock

Kevin Roberts

Jon Smith

Conner Morgan