Quantitative Chemistry Flashcards
Conservation of mass and reacting masses Relative atomic and formula masses Moles and chemical calculations Concentrations and yield
1
Q
What is Mass?
A
Mass is how heavy something is (measured in grams).
2
Q
What is Volume?
A
Volume is how much space something takes up (usually in cm³ or dm³).
3
Q
What is Concentration
A
how much of a substance is in a solution (grams or moles per dm³).
The total mass of the reactants (what you start with) = total mass of the products (what you end up with).
Atoms are rearranged, but none are created or destroyed.
4
Q
What if it looks like mass changes?
A
it’s usually because
A gas escaped into the air (mass seems to go down).
or
A gas from the air was taken in (mass seems to go up).
5
Q
A
