Quantative Chemistry (Part 1) Flashcards
1
Q
RAM definition
A
It is the mass of the atom compared with that of the carbon-12 isotope, which has a mass of exactly 12
2
Q
RFM definition
A
The sum of the relative atomic mass of all the atoms present in the formula of a substance
3
Q
How to find percentage of an element in a compound?
A
Mass of element in one mole of the compound
—————————————————————— X 100
Mass of one mole of the compound
4
Q
What is a mole?
A
It is an amount of a chemical ( The RFM of a substance in grams is known as one mole of the substance)
5
Q
How to find moles?
A
Mass divided by the RAM/RFM
6
Q
How to find mass?
A
Moles X RAM/RFM
7
Q
How to convert Tonnes, kilograms, grams and milligrams?
A
Divide or times by 1000
8
Q
How to calculate reacting masses?
A
Use MrMr (mass, RFM, moles, ratio)
