Solution Suspension Colloid

Summary

This video from MooMoo Math and Science explains the differences between solutions, suspensions, and colloids. A solution is a homogeneous mixture where particles cannot be seen or filtered out, such as sugar in water. In contrast, a suspension contains visible particles that settle over time, like muddy water, and can be filtered. Colloids consist of small, dispersed particles that do not settle or filter out, exemplified by substances like milk and fog. The video provides clear definitions and examples to help viewers understand these fundamental concepts in mixtures.

Takeaways

• 😀 A solution is a mixture of two or more substances where particles cannot be seen and do not settle over time.
• 😀 In a solution, the solute is the substance being dissolved (e.g., sugar) and the solvent is what it's dissolved in (e.g., water).
• 😀 A suspension consists of a fluid with visible undissolved particles that can settle over time and can be filtered.
• 😀 Light is visible when it passes through a suspension, indicating that it contains larger particles.
• 😀 Examples of suspensions include muddy water and sand in water.
• 😀 A colloid contains very small insoluble particles dispersed in a fluid and does not settle over time.
• 😀 Light is visible when it passes through a colloid, and these particles cannot be filtered out.
• 😀 Common examples of colloids include glue, milk, and fog.
• 😀 In a colloid, the dispersed phase refers to the suspended particles, while the continuous phase is the medium they are suspended in.
• 😀 The continuous phase in a colloid can be a solid, liquid, or gas.

Q & A

What is a solution?

A solution is a mixture of two or more substances where the particles cannot be seen and cannot be separated by filtration.

What are the components of a solution?

In a solution, the solute is the substance being dissolved (like sugar), and the solvent is the substance it is dissolved in (like water).

How can you remember the difference between a solute and a solvent?

Think of placing the solute into a vent to hide it; this imagery helps remember that the solute goes into the solvent.

What is a suspension?

A suspension is a mixture where solid particles are undissolved and may settle over time, and can be filtered out.

Can light pass through a suspension?

Yes, light is visible when it passes through a suspension, indicating the presence of solid particles.

What are the phases in a suspension?

In a suspension, the solid particles are referred to as the internal phase, while the fluid is called the external phase.

What is a colloid?

A colloid is a mixture containing very small insoluble particles dispersed in a fluid, where these particles do not settle over time.

How does light behave in a colloid?

Light is visible when it passes through a colloid, similar to a suspension, but the particles cannot be filtered out.

What examples illustrate colloids?

Examples of colloids include glue, milk, and fog, which contain dispersed particles suspended in a continuous phase.

What is the continuous phase in a colloid?

The continuous phase is the medium (solid, liquid, or gas) in which the dispersed particles are suspended.