C2.6 Quantative Chemistry Flashcards
1
Q
What is the formula for Moles?
A
Mass you have divided by RFM
2
Q
What is meant by water of crystallisation?
A
Water chemically bonded into crystal structure
3
Q
How would you calculate the value of an anhydrous substance?
A
Constant mass minus the mass of the evaporating basin
4
Q
How would you calculate the mass of water of crystilisation?
A
Mass of evaporating basin and hydrated substance minus the constant mass
5
Q
What would be the result when you react a metal with steam?
A
Oxide version of the metal plus hydrogen
6
Q
When a substance is melted by heat, what are the two products?
A
The oxide of the substance plus CO2
