Thermochemistry - Piedra Vista High School
... Hess’s Law: When reactants are converted to products, the change in enthalpy is the same whether the reaction takes place in one step or in a series of steps. (Enthalpy is a state function. It doesn’t matter how you get there, only where you start and end.) ...
... Hess’s Law: When reactants are converted to products, the change in enthalpy is the same whether the reaction takes place in one step or in a series of steps. (Enthalpy is a state function. It doesn’t matter how you get there, only where you start and end.) ...
The Chemical Bond
... empirical constants. To a good approximation, a is the same for all molecules and is given by a = 0.30 × 10-8 cm. Assuming this function is satisfactory for KCl, a. evaluate the constant b for KCl so that the minimum in the potential energy curve occurs at the observed equilibrium internuclear dista ...
... empirical constants. To a good approximation, a is the same for all molecules and is given by a = 0.30 × 10-8 cm. Assuming this function is satisfactory for KCl, a. evaluate the constant b for KCl so that the minimum in the potential energy curve occurs at the observed equilibrium internuclear dista ...
Acids and Bases
... Since HCl is a strong acid, the major species in solution are H+, Cl- and H2O To calculate the pH we will focus on major species that can furnish H+. The acid is completely dissociates in water producing H+ and water also furnishes H+ by autoionization by the equilibrium H2O(l) H+(aq) + OH-(aq) In p ...
... Since HCl is a strong acid, the major species in solution are H+, Cl- and H2O To calculate the pH we will focus on major species that can furnish H+. The acid is completely dissociates in water producing H+ and water also furnishes H+ by autoionization by the equilibrium H2O(l) H+(aq) + OH-(aq) In p ...
Final Exam for Physics/ECE 176 Professor
... Explore this situation by considering an idealization of a crystal that has N points periodically spread out in space and N interstitial positions between the lattice points where an atom can reside. Let > 0 be the energy needed to remove an atom from a lattice point and move it to any interstiti ...
... Explore this situation by considering an idealization of a crystal that has N points periodically spread out in space and N interstitial positions between the lattice points where an atom can reside. Let > 0 be the energy needed to remove an atom from a lattice point and move it to any interstiti ...
Molarity = moles of solute liters of solution M1V1 = M2V2
... very general. While concentrated indicates that there is a lot of solute dissolved in the solvent (perhaps the solution is near to being saturated) and dilute indicates that a small amount of solute is dissolved in the solvent, we often need to be exact with quantities in chemistry. Molarity (M) exp ...
... very general. While concentrated indicates that there is a lot of solute dissolved in the solvent (perhaps the solution is near to being saturated) and dilute indicates that a small amount of solute is dissolved in the solvent, we often need to be exact with quantities in chemistry. Molarity (M) exp ...
Equilibrium chemistry
Equilibrium chemistry is a concerned with systems in chemical equilibrium. The unifying principle is that the free energy of a system at equilibrium is the minimum possible, so that the slope of the free energy with respect to the reaction coordinate is zero. This principle, applied to mixtures at equilibrium provides a definition of an equilibrium constant. Applications include acid-base, host-guest, metal-complex, solubility, partition, chromatography and redox equilibria.