Observations:

Reading	Mass / g
Mass of empty crucible
Mass of empty crucible, and crystals
Mass after 1st heating
Mass after 2nd heating
Mass after 3rd heating
Mass after 4th heating

Reading	Mass of empty crucible
Mass / g

Reading	Mass of empty crucible, and crystals
Mass / g

Reading	Mass after 1st heating
Mass / g

Reading	Mass after 2nd heating
Mass / g

Reading	Mass after 3rd heating
Mass / g

Reading	Mass after 4th heating
Mass / g

Analysis of data

Mass of hydrated crystals __________________________g

Mass of anhydrous crystals __________________________g

Mass of water of crystallisation __________________________g

��ý