Purity and Formulations

Question 1

What is chemical analysis?

Answer 1

All about the instruments and methods we use to separate, identify and quantify different substances.

Question 2

a pure substance =

Answer 2

something that contains only one type of compound or element

only water H2O
only sodium chloride - it doesn’t matter if its a compound

Question 3

only pure substances melt and boil…

Answer 3

at specific temperatures

Question 4

how can we test for pure substances w boiling and melting points?

Answer 4

since pure substances always boil or melt at specific temperatures, if a substance boils at 100 degrees, we can know for sure for example that that is water.

Question 5

impure substances =

Answer 5

mix of different things

Question 6

impure substances do not have specific..

Answer 6

melting or boiling points

Question 7

what are formulations?

Answer 7

mixtures that have been made using a specific formula - there is a specific amount of the different components - they have a particular function… each of the different components have a different desired effect

Question 8

example of formulations

Answer 8

fuels paints allots

Question 9

if we test for a substance using its boiling point, this is a _________ test.

Answer 9

physical