- indicator ion
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ион-индикатор
Англо-русский словарь технических терминов. 2005.
Англо-русский словарь технических терминов. 2005.
Ion Creangă — Creangă redirects here. For other uses, see Creangă (surname). Ion Creangă Nică al lui Ştefan a Petrei Ion Torcălău Ioan Ştefănescu Born 1837 or 1839 Târgu Neamţ Died … Wikipedia
Ion — Cation and Anion redirect here. For the particle physics/quantum computing concept, see Anyon. For other uses, see Ion (disambiguation). Hydrogen atom (center) contains a single proton and a single electron. Removal of the electron gives a cation … Wikipedia
chemical indicator — any substance that gives a visible sign, usually by a colour change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution. An example is the substance called methyl yellow … Universalium
PH indicator — A pH indicator is a halochromic chemical compound that is added in small amounts to a solution so that the pH (acidity or alkalinity) of the solution can be determined easily. Hence a pH indicator is a chemical detector for hydronium ions (H3O+)… … Wikipedia
hydrogen-ion concentration — noun : the concentration of hydrogen ions in a solution expressed usually in moles per liter or in pH units and used as a measure of the acidity of the solution indicator dyes for narrow ranges of hydrogen ion concentration … Useful english dictionary
PH meter — A pH meter is an electronic instrument used to measure the pH (acidity or alkalinity) of a liquid (though special probes are sometimes used to measure the pH of semi solid substances). A typical pH meter consists of a special measuring probe (a… … Wikipedia
analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… … Universalium
pH — For other uses, see PH (disambiguation). Acids and Bases Acid dissociation constant Acid base extraction Acid–base reaction Acid–base titration Dissociation c … Wikipedia
acid–base reaction — ▪ chemistry Introduction a type of chemical process typified by the exchange of one or more hydrogen ions, H+, between species that may be neutral (molecules, such as water, H2O; or acetic acid, CH3CO2H) or electrically charged (ions, such… … Universalium
Titration — [ frame|Titration setup: the titrant drops from the burette into the analyte solution in the flask. An indicator present then changes color permanently at the endpoint.] Titration is a common laboratory method of quantitative chemical analysis… … Wikipedia
Pressure measurement — The construction of a bourdon tube gauge, construction elements are made of brass Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure pressure are called pressure gauges or vacuum gauges. A… … Wikipedia