Anhydrous and hydrated salts Flashcards
What does anhydrous mean?
Contains no water molecules
What does hydrated mean?
A crystalline compound containing water molecules
What are waters of crystallisation?
Water molecules that are chemically bonded into a crystalline structure of a compound
What is the formula of a hydrated salt?
MX.x H2O (MX = anhydrous salt which is a metal/ammonia)
How do you find the formula of a hydrated salt?
The same as empirical formula
What is a procedural uncertainty?
Uncertainties to do with the experimental method
Why do you heat the solid twice in this experiment?
To make sure all the water is heated off
If masses are different after reheating, what do you do?
Continue to heat and weigh periodically until there is no change in mass