Does anyone have a compiled list of the formulas we need to know for calculations? e.g. mole formulas.
Formulas for Chemistry AS Level watch
- Thread Starter
- 14-01-2010 01:01
- 14-01-2010 01:22
mol = c x v
mass = moles x molar mass
PV=nRT (Volume is in m^3 remember!, n = moles and R = 8.314)
Molecular formula = (Mr/Emperical formula) * Compound
Relative atomic mass of an atom is the average mass of an atom of an element divided by mass of a carbon-12 atom then all multiplied by 12. Same for RMM.
Edit: Eeek sorry it occurred to me on the way to college this morning that I said n was equal to the gas constant. I've fixed it now though, I don't think it would make a difference though since we're given the gas constant in the exams. My apologies though, I'm deeply embarrased but it was late and I was tired :P.Last edited by Webbykun; 14-01-2010 at 13:32.