chem revision equations Flashcards
1
Q
How do you calculate mass?
A
Mr x moles
2
Q
How do you calcualte Mr?
A
Mass / moles
3
Q
How do you calculate moles?
A
Mass / Mr
4
Q
How do you convert from cm cubed to dm cubed?
A
/ 1000
5
Q
How do you calcualte concentration?
A
Mass / Volume (dm cubed)
6
Q
How do you calculate mass (2nd equation)?
A
Conc. x vol (dm cubed)
7
Q
How do you calculate volume (dm cubed)?
A
Mass / conc.
8
Q
How do you calcualte conc. in g/dm cubed?
A
conc. in mol / dm cubed x Mr
9
Q
How do you calculate Atom Economy?
A
Mr of all useful producsts / Mr of all reactants
10
Q
What is moles number?
A
6.02 x 10 ^23
11
Q
How do you calculate Percentage Yield?
A
Actual yield / theoretical yield x 100
