Equations Flashcards
How do you calculate uncertainty?
Uncertainty = range / 2
How do you calculate surface area to volume ratio?
Surface area to volume ration = surface area / volume
How do you calculate percentage mass of an element in a compound?
percentage mass of an element in a compound = [(Ar x no. of atoms) / mr of compound] x 100
How do you calculate moles?
Moles = mass / mr
How do you calculate volume of a gas?
Volume of gas = (mass of gas / mr of gas) x 24
How do you calculate concentration?
Concentration = mass of solute / volume of solvent
Concentration = moles of solute / volume of solvent
How do you calculate atom economy?
Atoms economy = (mr of desired products / mr of all reactants) x 100
How do you calculate percentage yield?
Percentage yield = (mass of product made / maximum theoretical mass of product) x 100
How do you calculate mean rate of reaction?
Mean rate of reaction = quantity of reactant used / time
Mean rate of reaction = quantity of product formed / time
How do you find a compounds Rf value?
Rf = distance moved by substance/distance moved by solvent
