General Chemistry equations at the undergraduate level.  Calculators for the following formulas are available via the buttons on the right.

General Chemistry Equations:

• Clausius-Clapeyron Equation

             `P_2 = P_1 * e^((DeltaH_"vap")/R (1/T_1 - 1/T_2))` 

• Concentration of Solute (Percent by Mass) 

             `PCS = [(Ws) / (WS)]`

• Rate of Decay

             `D_R = k*[A]`

• Nerst Equation (at 25 degrees C)

             `E = E^0 - 0.0592/nlogQ`

• Van't Hoff Equation

             `Delta H^o = -R(ln(K_2/K_1))/(1/(T_2)-1/T_1)`