solutions, suspensions, colloids
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An iced tea mixture dissolved in water forms a solution, which is a homogeneous mixture where particles are too small to be filtered or scatter light. A suspension like flour in water is heterogeneous and particles separate over time through settling or filtering. Colloids have intermediate particle sizes between solutions and suspensions that do not separate and include mixtures like peanut butter or fog.
solutions, suspensions, colloids
- 1. Acknowledgment I would like to express my special thanks of gratitude to my teacher (Mrs. Urjah Kapila ) as well as our principal (Mrs. Gauri Chabra )who gave me the golden opportunity to do this wonderful project on the topic (Solutions, suspensions, colloids), which also helped me in doing a lot of Research and i came to know about so many new things I am really thankful to them.
- 2. Do You Know??? ● If you stir 2 tablespoons of Iced-tea mix into a 16oz. Glass of water ,you would make a delicious summer drink .If you let the glass sit out on the counter for several days, would that drink be separated into its parts?
- 3. Solutions, Suspensions, and Colloids
- 4. Goal To classify mixtures as solutions, suspensions, or colloids.
- 5. It’s all about the particles! ➢ The size of the particles has a great effect on the properties of a mixture. ➢ You must observe a mixture’s properties before deciding whether it is heterogeneous or homogeneous. ➢ Mixtures get classified as solutions, suspensions, or colloids based on particle size.
- 6. Solutions Q: When iced-tea mix is dissolved in water, it forms what kind of mixture? A: HOMOGENEOUS MIXTURE When substances dissolve and form a homogeneous mixture, the mixture is called a solution. Whatever substance there is more of is called the solvent. The other is called the solute (ex.) Iced tea-the solvent is the water, the solute is the tea mix).
- 7. Properties of a Solution They do not separate into layers over time. • If they are poured through a filter, none of the substances will get trapped. • Light passes through them. All of the particles in a solution are too small to become separated, filter out, or scatter light.
- 8. Suspensions Flour in water, like other liquids that need to be “shaken well before using”, are called suspensions. Muddy water taken from a swamp is another example.
- 9. Properties of a Suspension Heterogeneous mixture • Separates into layers over time. • Filters can separate particles that make up a suspension. • Particles are larger than those in a solution. • Scatter light. Suspended particles settle out of a suspension.
- 10. Colloids Colloids contain some particles that are intermediate between those in a solution and those in a suspension. Examples include peanut butter, pudding, Jello, whipped cream, and even fog!
- 11. 1)Suspensions are a heterogeneous mixture of two or more substances. 2)Particles of the solute do not dissolve in the solvent rather they remain suspended in bulk throughout. 3)The size of particles of suspension is large enough to be visible from naked eyes. They are greater than 1 nanometer (?10?^(-9) meter). 4)It shows Tyndall effect because of their large size of particles. 5)When it is left for some time, particles get settled in the bottom. Therefore, it is not stable. 6)The particles in it can be separated through the process of filtration. 7)It does not scatter light when particles are settled because in this case suspension breaks. Properties of colloids:
- 12. Distinguish between solutions, suspensions and colloids.