MGCCC, Perk Learning Lab

TLM
 
ADVANCED CHEMISTRY EQUATIONS

 

Text Box: D = m . D = Density V m = mass V = Volume Units for density are: g/ mL g/ cc g/ L (gasses only)

 

1 cal = 4.184 J

1kcal = 1000 calories

1 atm = 14.7 psi;  1 atm = 760 torr;  1 atm = 760 mm Hg

 

KE = ½ mv2     KE = Kinetic Energy

                        m = mass;  v = velocity

 

 

eq wt = Equivalent Weight                 M = Molarity                        N= Normailty

eq wt = compound weight                  M= mol                                  N= eq wt                or            N = M * # of H+

                 # 0f H+ or (OH)-                             L                                              L

 

N= normality, V = volume                   Dalton’s Law                        Mole Fraction

NaVa = NbVb                                           Pt = P1 + P2                                    X = Pressure of Part

                                                                                                                       Pressure of Total

 

Root Mean Square Velocity               R= 8.314

Frms =                               T = temperature in Kelvins

                                                                M = mass in Kg

 

 van der Waals Equation: variables a and b must be supplied or can be located in a van der Waals chart.

        P +      (V – nb) = nRT 

 

Non-volatile, Non-electrolyte                                            Volatile, Electrolyte: Van Hoff Factor

Boiling Pt Change: Îbp = mKb                             Boiling Pt Change: Îbp = mKbi

Freezing Pt Change: Îfp = mKf                             Freezing Pt Change: Îfp = mKfi

m is molality: m = mol of solute    

                                  Kg of solvent

 

Vapor Pressure: Raoult’s Law                                            Osmotic Pressure

P = P°Xsolvent                                                                           = MRT

Kw = [H3O+] [OH-] = 1 x 10-14              pH = pKa + log             pH = - log[H30+]    pOH = -log [OH-]

pH + pOH = 14                                      pOH = pKb + log                   [H3O+] = 10-pH    [OH-] = 10-pOH

Kc or  Q or  Ka  or  Kb =                            (pKa) (pKb) = 1 x 10-14

 

pKa = -log[Ka]                                      pKb = -log[Kb]

 

If exponent of 10 in the K value is -4 or less (-5, -6, etc.) then you may disregard the x that is subtracted and added from a number that is greater than 0.05. [example: ( 0.1-x) or (0.1 + x) both of the x’s could be disregarded]