Quantitative Chemistry Flashcards
1
Q
How do you calculate the % mass of an element in a compound?
A
number of atoms in the element divided by the mass of the compound
2
Q
What is the description of a mole?
A
The amount of a substance
3
Q
How do you calculate the number of moles in a given mass?
A
Mr of the compound
4
Q
What are the two equations for concentration?
A
Mass over volume
Moles over volume
5
Q
What is the equation linking number of moles, concentration and volume?
A
Concentration x volume = Number of moles
6
Q
How many cm cubed are in a dm cubed?
A
1000 cm
7
Q
What is atom economy?
A
Atom economy is the percentage of useful product
8
Q
What is the equation linking mr of desired product and total product and atom economy?
A
Mr/Total product x 100
