Formulas Flashcards
Formula relating moles, mass and Mr
Moles = Mass/Mr
Formula relating kinetic energy, mass and velocity
KE = 1/2mv^2
Formula relating velocity, distance and time
v = d/t
Formula relating time, distance, mass and kinetic energy
t = d x (square root) m/2KE
Formula relating time and mass of 2 ions
t1 = t2 x (square root) m1/m2
How to calculate empirical formula
Divide each percentage by that atom’s Ar, then divide each value by the smallest value to find the ratio
What is the Ideal Gas Equation?
pV = nRT
How do you convert celsius to kelvin?
Add 273
Formula of percentage atom economy
mass of useful product/total mass of reactants x 100
Formula for percentage yield
actual yield/theoretical yield x 100
Formula for percentage uncertainty
absolute uncertainty/measurement x 100
Formula relating concentration, volume and moles
c = n/V
