Purity and formulations

• What is the field of chemical analysis also known as?

  Analytical chemistry
• What does chemical analysis involve?

  Separating, identifying, and quantifying substances
• What are some methods used in chemical analysis?

  • Paper chromatography
  • Filtration
  • Crystallization
  • Distillation
• What is a pure substance?

  Contains only one type of compound or element
• Why is it important to know if a substance is pure?

  Only pure substances have specific melting and boiling points
• At what temperature does water boil?

  100 degrees Celsius
• At what temperature does sodium chloride melt?

  801 degrees Celsius
• What happens to the boiling point of impure substances?

  It increases compared to pure substances
• What is the melting point of saltwater?

  About minus 2 degrees Celsius
• What is the boiling point of saltwater?

  Around 100.5 degrees Celsius
• What are formulations?

  Mixtures prepared using a specific formula
• What is a key feature of formulations?

  Components are always present in the same proportions
• How is making a formulation similar to cooking?

  It's like following a recipe for a mixture
• What might different components in a formulation contribute?

  Different properties for the final product
• What happens after testing different combinations in formulations?

  You find the right formulation to repeat
• What should you do if you enjoyed the video?

  Like and subscribe