Stoichometry Flashcards
What is RAM/how do we find it out
Average weight of the isotopes if the element.
Percentage/amount x mass number e.g 35 chlorine
What is RFM/how do we find it out?
Total mass of the molecule
Add up the masses of the molecule
How to find percentage composition using RFM
Find RFM. Divide by what you want by RFM x 100
How to find the mole of a substance
Find the RFM then add the unit, grams
Simple mole formula
N.O of moles = mass/mass of 1 mole
How to find formulae with moles
Combining masses / number of moles. Turn into a ratio
Equation for Charge (Coulombs)
Coulombs = Current (amps) x time (seconds)
Calculating mass, electrolysis
Find charge, then electron number x faradays (92,000), Coulombs÷total charge x atomic mass