Key Equations

Question 1

What is the equation for the concentration of moles in g/dm3
(dm3 is 1000cm3 or 1 litre)

Answer 1

Concentration = mass (g) / volume (dm3)

Question 2

What are the 2 equations for figuring out the number of moles in a substance/solution?

Answer 2

Number of moles = concentration x volume

Number of moles = mass (g) / RFM (relative formula mass)

Question 3

What is the equation for a metal carbonate + acid?

Answer 3

Metal carbonate + acid = salt + water + carbon dioxide

Question 4

What is the word equation for metal + acid?

Answer 4

Metal + acid = salt + hydrogen

Question 5

What is Avogadro’s constant?

Answer 5

Unit which is equal to 1 mole
6.02 x 10^23
Not rounded it is 6.02214179