1 / 12

CONCENTRATION

Explore the concept of concentration in solutions by learning about different types, comparing concentrations, and conducting a fun Tang experiment. Calculate and create your ideal drink with varying levels of concentration. Enjoy the taste of science!

kapplewhite
Download Presentation

CONCENTRATION

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CONCENTRATION • The specific amount of solute (grams) dissolved in a specific amount of solvent (millilitres) • Ex. 18g / 142mL • 18g of a solute was dissolved in 142mL of solvent

  2. Can also be expressed as a % • Ex. Vinegar – 5% acetic acid • 5mL out of 100mL is real acid • The rest (95ml) is water • Very low concentrations may be stated in ‘parts per million’ or ppm • Often used for pollutants • Ex. DDT is found in the environment @ 2ppm • 2 parts of DDT is found in 1 million parts of the environment

  3. 2 main types of concentrations: 1) Concentrated • Large amount of solute in the solvent • Ex. Frozen orange juice concentrate • Large amount of orange solids in water

  4. 2) Diluted • Small amount of solute in the solvent • Ex. Orange juice made from concentrate • Small amount of orange solids in a large amount of water

  5. How could you make the diluted solution more concentrated? • How could you make the concentrated solution more dilute?

  6. Comparing concentrations • Need to be able to compare concentrations of to determine behavior • Which has the larger concentration? • In order to compare, the volume of the solvent must be the same for each solution

  7. Solution 1 Solution 2 • Which solution is more concentrated? 19g of salt in 100mL water 8g of salt in 40mL water 20g of salt in 100mL water

  8. Solution 1 Solution 2 • Which solution is more concentrated? 14g of salt in 65mL water 20g of salt in 85mL water

  9. Who’s Is Stronger? • Each group will make 4 different concentration of Tang • Label each cup (A1, A2, etc) • Measure out solute and solvent; mix • Groups will then rotate to another group’s drinks and order the drinks from most to least concentrated based on appearance • Then check with calculations to determine if they were correct • Enjoy! 

  10. A Taste of Concentration • Task - Create a glass of Tang that has your ideal concentration • Procedure • Start by making a solution of 5g/200ml • Increase the concentration until you have reached your ideal drink • Add 1g increments of iced tea powder • Maximum concentration = 15g/200ml • Calculate your ideal concentration in g/200ml, g/ml, and % • Enjoy! 

More Related