Key Equations Flashcards
1
Q
What is the equation for the concentration of moles in g/dm3
(dm3 is 1000cm3 or 1 litre)
A
Concentration = mass (g) / volume (dm3)
2
Q
What are the 2 equations for figuring out the number of moles in a substance/solution?
A
Number of moles = concentration x volume
Number of moles = mass (g) / RFM (relative formula mass)
3
Q
What is the equation for a metal carbonate + acid?
A
Metal carbonate + acid = salt + water + carbon dioxide
4
Q
What is the word equation for metal + acid?
A
Metal + acid = salt + hydrogen
5
Q
What is Avogadro’s constant?
A
Unit which is equal to 1 mole
6.02 x 10^23
Not rounded it is 6.02214179
