(4.8.1)(Purity, formulations and chromatography)
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7 Terms
What is a pure substance?
A single element or compound, not mixed with any other substance.
What is a formulation?
A formulation is a mixture that has been designed as a useful product.
How is a formulation made?
Formulations are made by mixing the components in carefully measured quantities to ensure that the product has the required properties.
Give examples of formulations.
Formulations include fuels, cleaning agents, paints, medicines, alloys, fertilisers and foods.
What can chromatography be used for?
Can be used to separate mixtures and can give information to help identify substances.
What are the two phases in chromatography?
Mobile and stationary.
What is the formula for Rf value?
Distance move by substance / distance moved by solvent
Note 
Flashcards (40)