8-Chemical Analysis (2) Flashcards by immy h | Brainscape

Q

What is a pure substance?

A

only contains one element or compound

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Q

How can you tell if a substance is chemically pure?

A

test its boiling point
chemically pure substance will melt or boil at a specific temperature
impurities increase boiling poiny

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Q

What are formulations like?

A

useful mixtures with a precise purpose
e.g paints are formulations that contain; pigment for colour, binder to help paint attach itself when dry
solvent to help pigment and binder spread well during painting by thinning them out

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