Purity and Formulations Flashcards
1
Q
What is a pure substance?
A
a substance that only contains one type of element or one type of compound
2
Q
How do you test for a purity of a substance?
A
By measuring its melting or boiling point and comparing it with the melting or boiling point of the pure substance
3
Q
What changes does an impure substance have?
A
- Lowers the melting point and increases the melting range
- Increases the boiling point
4
Q
What is a formulation?
A
A mixture of compounds in measured quantities that has been designed as a useful product
5
Q
How are formulations important in the pharmaceutical industry?
A
Chemists make sure it delivers the drug to the correct part of the body at the right concentrations
6
Q
What are some examples of forumations in everyday life?
A
cleaning products
Cosmetics
Fertilisers
Metal alloys
