6 - Quantative Chemistry Flashcards
1
Q
1L = ?dm3
A
1L = 1dm3
2
Q
1m3 = ?dm3
A
1m3 = 1000dm3
3
Q
1ml = ?dm3
A
1ml = 0,001dm3
4
Q
How to calculate concentration?
A
concentration (mol/dm3) = moles/volume (dm3)
5
Q
How do you calculate moles?
A
moles = mass/molecular mass
6
Q
How to find percentage by mass of an element in a compound?
A
percentage mass = 100 × (relative atomic mass/relative formula mass)
7
Q
What is the relative atomic mass?
A
- mass of an element relative to 1/12 carbon
