Chem 121 Final review

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Average deviation from the Mean

What is the error for a graduated cylinder

0.1L

what is the error for a volumetric pipet

0.02 mL

what is the error for a thermometer

0.2 C

what is the error for the analytical balance

0.001g or 1mg

what is the error for a buret

0.02 m

Flammability, Reactivity

Chemical property

State of matter, color

Physical property

Decantation

Pouring out a liquid and leaving the solid at the bottom

What is a supernatant liquid

the liquid being poured out during a decantation

Evaporation

Boiling or adding heat in order to isolate a solid

Extraction

Purifying a substance from a mixture

Filtration

Using a funnel or a paper to filter a precipitant from the solution

Heterogeneous Mixture

A mixture with an non uniform composition

Homogeneous Mixture

A mixture with a uniform composition