CHEMISTRY GLOSSARY

mercury    →   živa

Mercury has been known since ancient times. The origin of the name comes from the Latin word hydrargyrum meaning liquid silver. It is heavy, silver-white metal, liquid at ordinary temperatures. Stable in air and water. Unreactive with alkalis and most acids. Gives off poisonous vapour. Chronic cumulative effects. Mercury only rarely occurs free in nature. The chief ore is cinnabar or mercury sulfide (HgS). Used in thermometers, barometers and batteries. Also used in electrical switches and mercury-vapour lighting products.

micelle    →   micele

Micelle is an electrically charged colloidal particle, usually organic in nature, composed of aggregates of large molecules, e.g., in soaps and surfactants. For aqueous solutions, the hydrophilic end of the molecule is on the surface of the micelle, while the hydrophobic end (often a hydrocarbon chain) points toward the centre.

microanalysis    →   mikroanaliza

Microanalysis is a sum of analytical procedures used for researching of very small quantities of matter (around 1 mg).

mineralization    →   mineralizacija

Mineralization is a process in which organic compounds (e.g. dead plant or animal material) are converted to inorganic compounds (e.g. nitrate, carbon dioxide).

mixture    →   smjesa

Mixture is a heterogeneous association of substances where various individual substances retain their identities and can usually be separated by mechanical means. Includes solutions or compounds but does not include alloys or amalgams.

molar    →   molarna

Denoting that an extensive physical property is being expressed per amount of substance, usually per mole.

molar enthalpy of melting    →   molarna entalpija taljenja

Molar enthalpy of melting (Δ_s ^lH) is a change of enthalpy during melting divided by the molarity of a solid matter, and is equal to the energy used when melting is conducted under constant pressure.

molar mass    →   molarna masa

Molar mass is the mass of one mole of a substance.

It is normally expressed in units of g mol^-1, in which case its numerical value is identical with the relative molecular mass.

molar quantity    →   molarna veličina

Molar quantity is often convenient to express an extensive quantity (e.g., volume, enthalpy, heat capacity, etc.) as the actual value divided by the amount of substance (number of moles). The resulting quantity is called molar volume, molar enthalpy, etc.

molar volume    →   molarni volumen

Molar volume is the volume occupied by substance per unit amount of substance. The volume of the gas at 0 °C and 101 325 Pa is 22.4 dm³mol^-1.