EQUATIONS Flashcards
What is the equation for number of moles in a solid?
number of moles = mass(g) / molar mass(g/mol)
What is the equation for number of moles in a liquid?
number of moles = concentration(mol/dm^3) * volume(dm^3)
What volume does one mole of gas occupy at room temperature?
24dm^3
What is the ideal gas equation?
PV=nRT, where R = 8.31 J/k/mol
What is the equation for %yield?
%yield = (actual yield / theoretical yield) * 100
What is the equation for energy transferred, Q?
Q = m * c * delta T, c = specific heat capacity
What is the equation for enthalpy?
delta H = Q/n
What is the form of the equilibria constant?
Kc = ([C]^c * [D]^d) / ([A]^a * [B]^b)
What is the equation for pH?
pH = -log[H+]
What is the equation for [H+]?
[H+] = 10^-pH
What is the equation for Ka?
Ka = ([H+] * [X-]) / ([HX])
What is the equation for Kw?
[H+] * [OH-]