(Encyclopedia) mole, in chemistry, a quantity of particles of any type equal to Avogadro's number, or 6.02×1023 particles. One gram-molecular weight of any molecular substance contains exactly one…
Molar MassChemistryThe MoleWhat's a Mole?Molar MassConverting Between Moles, Molecules, and GramsPercent Composition When speaking about doing chemical reactions, it isn't very handy to say that…
(Encyclopedia) neomycinneomycinnēˌōmīˈsĭn [key], broad spectrum antibiotic effective against both gram positive and gram negative bacteria (see Gram's stain). It interferes with protein synthesis in…
(Encyclopedia) erythromycinerythromycinĭrĭthˌrōmīˈsĭn [key], any of several related antibiotic drugs produced by bacteria of the genus Streptomyces (see antibiotic). Erythromycin is most effective…
ChemistryIntermediate-Level Science ProjectsChemistryCan You Be a Human Battery?What Materials Make the Best Crystals? Are All Pennies Created Equal? The penny, which has been around…
ChemistryIntermediate-Level Science ProjectsChemistryCan You Be a Human Battery?What Materials Make the Best Crystals? Are All Pennies Created Equal? The penny, which has been around in the…
(Encyclopedia) cephalosporincephalosporinsĕfˌəlōspôrˈĭn [key], any of a group of more than 20 antibiotics derived from species of fungi of the genus Cephalosporium and closely related chemically to…
(Encyclopedia) latent heat, heat change associated with a change of state or phase (see states of matter). Latent heat, also called heat of transformation, is the heat given up or absorbed by a unit…
Gas StoichiometryChemistryStoichiometryStoichiometry: Fun to Say, Fun to Do!Simple Stoichiometry CalculationsLimiting Reactant ProblemsGas Stoichiometry Though we've limited our discussion of…
