EXAM 1 SOLUBILITY Flashcards
(21 cards)
What is the mass percent equation?
mass % component = mass of component/total mass of solution (100)
How do you calculator ppm?
ppm of component = mass of component in solution/total mass of solution (10^6)
How do you find the mole fraction of a concentration?
mole fraction = moles of component/total moles of all components
How do you find the molarity concentration of a solution?
molarity = moles of solute/liters of solution
How do you find the moles of a compound?
moles = mass/molar mass
How do you find the molality of a solution?
molality = moles of solute/kg of solvent
What is the difference between molality and molarity?
molality is the moles of solute divided by the kg of solvent while molarity is the moles of solute divided by liters of total solution.
What is Raoults Law?
Psolution = Xsolvent + P*solvent
What is the X in Raoults Law?
the mole fraction of the solvent
What is the P* in Raoults Law?
vapor pressure of pure solvent
What is the “m” in the boiling point elevation and freezing point depression of a solution?
molality
What is the osmotic pressure of a solution?
pi=iMRT
What is the general form for a rate law for A+B–>C?
Rate = k[A]^m[B]^n
What is the form of a first order rate law?
ln[A]t-ln[A]0=-kt OR ln [A]t/[A]0=-kt
What is the form of a second order rate law?
1/[A]t=kt+1/[A]0
What is the form of a zero order rate law?
[A]t=-kt+[A]0
What is the half-life and rate constant for a first order reaction?
t1/2=0.693/k
What is the Arrhenius equation?
k=Ae^Ea/RT
What is the Ea in the Arrhenius equation?
Activation energy in kJ
