Mindmap

Mixtures

Emma Neal Englisch

Inhalt der Mindmap

Mixtures

2 or more pure substances
- Homogeneous
  - fixed ratio components
- Hetereogeneous
  - variable ratio of components
Separation techniques
- seiving
  - 2 or more solids with different particle size
- filtration
  - Insoluble solid mixed in liquid
- sedimentation
  - insoluble solid mixed in liquid 
  - decanting
- evaporation
  - Where there is a solid (solute) dissolved in liquid
- fractional distillation
  - Mixture's of miscible liquids where bpt difference is less than 100 degrees celcius
- centrifugation
  - Suspensions (solid distributed evenly throughout liquid)
- magnetic separation
  - magnetic solids from non magnetic solids
- paper chromotography
  - Solubility of liquids and adherence to paper
- separating funnel
  - 2 or more immiscible liquids
- ALL RELY ON DIFFERENT PROPERTIES
- distillation
  - miscible liquids where difference in bpt  is more than 100 degrees celcius
Gravimetric Analysis
- involves measuring mass
- percentage composition
  - mass of substance/mass of the original sample x100
- Its a form of quantitative analysis
- Applications
  - mining
    - economically viable
  - pharmaceutical chemists