C3- Quantative Chemistry Flashcards
1
Q
What is the equation that link moles, mass and relative mass?
A
Mass = Mr x moles
2
Q
What is a closed system?
A
A reaction where the mass remains constant.
3
Q
What is 1 dm in cm?
A
10cm
4
Q
What is the equation that links mass, concentration and volume?
A
Mass = concentration x volume
5
Q
What is avogadros constant?
A
6.02 x 10 to the power of 23
6
Q
What is a limiting reactant?
A
The reactant that is completely used up in a reaction.
7
Q
What is the percentage yield calculation?
A
Actual mass of product divided by maximum theoretical mass of product x 100
8
Q
How do you find the atom economy?
A
The Mr of the products divided by the Mr of the reactants.
