What does pure mean in everyday life? | It often refers to Clean or natural |
What does pure mean in Chemistry mean? | It means that the substance is made up of a single Element or a Compound |
What happens if you have more then one compound present. Or different elements not in a compound in a solution? | It will not be pure. It will be instead a Mixture |
Is fresh air pure? | No. We think its just Oxygen, but it also contains Carbon Dioxide, Nitrogen, Water Vapor, Argon and other various gases |
What does each Pure substance have that can be tested? | It has a specific melting point and boiling point. An example would be Pure Ice. It melts at 0 degrees and boils at 100 degrees |
So how can you test for Impure substances? | -You simply find its designated melting point and boiling point and compare it with your substance.
-If the melting point is too low, its impure. If the boiling point is to high, its impure.
-If its the same, Its Pure |
How else can you tell if its Impure. | -You can heat the solid/liquid up.
-If the substance is impure, their will be different components with different melting/boiling temperatures.
-Part of the mixture will boil/melt while the other part will stay in its original state for longer. |