Amount of substance Flashcards
1
Q
Why do chemists use substances?
A
working with solutions is safer than working with pure substances
easier to store
easier to measure
2
Q
What is concentration?
A
a measure of how much solute is dissolved per volume of solvent
3
Q
What is volume measured in?
A
dm3
4
Q
How many dm3 is 1L?
A
1
5
Q
What is actual yield?
A
the actual amount of desired product created in a reaction
6
Q
What is theoretical yield?
A
the amount of desired product that could be produced if all the reactants fully reacted and nothing was lost
7
Q
What is a % yield?
A
how efficient a reaction is at converting reactants into products
8
Q
How do you calculate % yield?
A
actual/theoretical x100
