Chemistry Flashcards
Time of flight
(atomic structure unit)
- mass=Mr/avagadros (/1000 for unit)
-velocity=distance/time
-kinetic energy=1/2xmassxvelocity2
relative atomic mass
(atomic structure unit)
[ (Isotope A mass x Isotope A %) + (Isotope B mass x Isotope B%)/ sum of all %
moles
(amount of a substance unit)
mass/Mr
moles in solution dm3
(amount of a substance unit)
moles= concerntration/volume
moles in solution cm3
(amount of a substance unit)
(concerntration x volume)/1000
moles in gas
(amount of a substance unit)
volume/24
ideal gas
(amount of a substance unit)
Pv=nRT
p-pa
v-m3 (1000000cm3 = 1m3)
t-kelvin (c+273)
percentage yield
(amount of a substance unit)
(actual yield/theoretical yield) x 100
atom economy
(amount of a substance unit)
(Mr of desired product/ Mr of all reactants) x 100
(includes big number)
density = mass/volume