C3- Quantative Chemistry Flashcards
1
Q
Relative formula mass
A
Percentage of an element in a compound= (Ar x number of atoms of that element/ Mr of the compound) x 100
2
Q
Avogadro constant
A
6.023 x 10 power 23
3
Q
Number of mole formula
A
Mass in g / Mr
4
Q
Conservation of mass
A
During chemical reaction no atoms are destroyed and no atoms are created
5
Q
Limiting reactant
A
Reaction stops when all of one reactants is used up making any other reactants in excess and the other reactant the limiting reactant
6
Q
Concentration of a substance
A
The amount of substance in a certain volume of a solution
7
Q
Concentration equation
A
Concentration (g/dm cubed)= mass of solute (g)/ volume of solvent (dm cubed)
