Is food color is soluble

Answer 1

We use the term soluable to refer to the capability of a substance to be dissolved – “Sugar is soluable in water.” The resulting mixture is called a solution. The definition of a solution is a homogeneous mixture of two or more substances in a single phase. It is importantto understand that even though a gas may be dissolved into a liquid, once the gas is in solution it is now in the liquid phase. Using the sugar dissolved in water example, the sugar is now in the liquid phase. We call the sugar (the substance being dissolved) the solute, and we call the water (the medium the solute is being dissolved into) the solvent.

Another important part of the solution process is having a general idea if a particular solute will dissolve in a particular solvent. Now that we have a general idea why some substances will dissolve in others, it is important to visualize what happens at the molecular level when a solute is added to a solvent.

Mini-Lab - Determining what happens when a solute is added to a solvent. In this miniinvestigation you will be using food coloring and various amounts of water to help you get a sense of what might be happening on the molecular level when a solute is added to a solvent. You may have had experience using food coloring before while cooking and know about some of its properties. If you don’t, that’s O.K. This mini investigation is for you to explore.

Materials

Assorted beakers

4 Color box of food coloring

Deionized water Stirring rod

Colored pencils

Procedure

Use the beakers, water, and food coloring to explore the effects of adding food coloring to water. You may use any amounts of water and any colors to experiment with. The main question that you are trying to answer is: “What is happening on a molecular level when I add the solute to the solvent?”

What you think is happening at the molecular level when you add the food coloring to the water.

You may repeat the investigation as many times as you want and with any combination of materials.