The number of moles of a component of a mixture divided by the total number of moles in the mixture.
- Chemical Safety
People use chemicals every day for a wide array of purposes, which can include work and house hold duties. Many of us fail to realize that we are actually handling potentially deadly chemicals when we simply clean the bathroom or wash the car. This brings to mind the reason why chemical safety is...
- What are Compound Microscopes?
Most of the microscopes used today are compound. A compound microscope features two or more lenses. A hollow cylinder called the tube connects the two lenses. The top lens, the one people look through, is called the eyepiece. The bottom lens is known as the objective lens. Below the two lenses is...
- Protein Design: Automated protein discovery and synthesis
In this paper I describe (theoretically) the method(s) of automated protein discovery and synthesis.
- What's In Your Beverage? How to Ensure Quality Control with CO2 Analytical Support
Calibration standards, performance audits, and the FDA's never-ending safety, labeling, and inspection requirements are just the tip of the iceberg when it comes to dealing with the increasingly stringent quality control standards of the beverage industry. As these quality standards become...
- Features of the Scanning Tunneling Microscope
The scanning tunneling microscope (STM) invented by Heinrich Rohrer and Gerd Binnig in the 1980s still manages to do a great job today and competes with more advanced microscope types. The scanning tunneling microscope is used for studying the surface atoms that are found on various materials. The...
A heterogeneous mixture in which solute-like particles do not settle out.
A reaction in which two atoms or groups of atoms are added to a molecule, one on each side of a double or triple bond. Types of addition reaction include electrophilic, nucleophilic (polar) and free radical addition (non-polar).
Pair of electrons involved in a covalent bond.
Trapping of heat at the surface of the earth by carbon dioxide and water vapour in the atmosphere.
The process in which a heavy nucleus splits into nuclei of intermediate masses and one or more protons are emitted.
Solid triester of glycerol and (mostly) saturated fatty acids.
Elements 58 to 71 (after lanthanum).
The temperature above which a gas cannot be liquefied, the temperature above which a substance cannot exhibit distinct gas and liquid phases.
The process in which a fractioning column is used in distillation apparatus to separate components of a liquid mixture that have different boiling points.
Surfaces upon which oxidation and reduction half-reactions, occur in electrochemical cells.
Acid that can form only one hydronium ion per molecule, may be strong or weak. Acid that contains one ionizable hydrogen atom per formula unit.
A group of atoms derived from an alkane by the removal of one hydrogen atom.
A device used to measure the heat transfer between system and surroundings at constant volume.
Conduction of electrical current through a metal or along a metallic surface.
Energy that matter processes by virtue of its motion.
A compound that contains more than one double bond per molecule.
Crystal Field Theory
Theory of bonding in transition metal complexes in which ligands and metal ions are treated as point charges, a purely ionic model, ligand point charges represent the crystal (electrical) field perturbing the metal?s d orbitals containing nonbonding electrons.
Heat of Condensation
The amount of heat that must be removed from one gram of a vapor at it's condensation point to condense the vapour with no change in temperature.
Amount of solute per unit volume or mass of solvent or of solution.
Mixing a set of atomic orbitals to form a new set of atomic orbitals with the same total electron capacity and with properties and energies intermediate between those of the original unhybridized orbitals.