Flashcards in 5 - Formulae, Amounts Of Substance Deck (12)
What's avogadros constant?
6.02 x 10^23
What is the R constant
What is the ideal gas equation?
PV = nRT
mass / rfm (molar mass)
Moles/ rfm/ mass triangle?
mass on top! moles and rfm on bottom
Unit for pressure?
Pascals (pa) 1kpa = 1000pa
Unit for volume?
Converting from degrees centigrade to Kelvin?
Using empirical formula?
divide the mass by the rfm for all given elements
if the ratio is clear then leave it
if not divide by the smallest
work out the ratio
break down all elements into their ions
cancel out ions either side of the equation
rewrite with what's left
volume on top, moles and 24 on bottom