alkalna greška

alkalna greška

Sustavna greška koja se pojavljuje kad se staklene elektrode koriste za očitavanje pH ekstremno alkalne otopine; elektrode odgovaraju na ione natrija kao da su vodikovi ioni, dajući očitanje pH koje je konzistetno prenisko.

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Industry/Domain: Chemistry
Category: General chemistry
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greška

Chemistry; General chemistry

A mistake is a measurement which is known to be incorrect due to carelessness, accidents, or the ineptitude of the experimenter. It's important to distinguish mistakes from ...

alkalna zemlja

Chemistry; General chemistry

An oxide of an alkaline earth metal , which produces an alkaline solution in reaction with water.

alkalna zemlja

Chemistry; Inorganic chemistry

An oxide of an element of group 2 in the periodic table, such as barium, calcium, and strontium. Also known as alkaline-earth oxide.

apsolutna greška

Chemistry; General chemistry

The uncertainty in a measurement, expressed with appropriate units. For example, if three replicate weights for an object are 1.00 g, 1.05 g, and 0.95 g, the absolute error can be ...

slučajna greška

Chemistry; General chemistry

Random errors are errors that affect the precision of a set of measurements. Random error scatters measurements above and below the mean, with small random errors being more ...

isparljiv

Chemistry; General chemistry

A solid or liquid material that easily vaporizes. A material with a significant vapor pressure .

abraziv

Chemistry; General chemistry

A very hard, brittle, heat-resistant substance that is used to grind the edges or rough surfaces of an object. boron carbide, diamond, and corundum are abrasives.

diastereoizomer, diastereomer

Chemistry; General chemistry

Stereoisomers which are not mirror images of each other. Diastereomers are chemically similar but distinguishable; they have different melting points and boiling points and they ...

medicinska hemija

Chemistry; General chemistry

A branch of chemistry concerned with the discovery, design, synthesis , and investigation of biologically active compounds and reactions that these compounds undergo in living ...

slab elektrolit

Chemistry; General chemistry

A weak electrolyte is a solute that incompletely dissociates into ions in solution. For example, acetic acid partially dissociates into acetate ions and hydrogen ions, so that ...

grafit

Chemistry; General chemistry

An amorphous form of carbon , made of carbon atoms bound hexagonally in sheets (like chickenwire).

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Industry/Domain: Arts & crafts Category: Oil painting

Mona Liza

The Mona Lisa is widely recognized as one of the most famous paintings in the history of art. It is a half-length portrait of a seated woman painted ...