Molar concentration (also called molarity , amount concentration or substance concentration ) is a measure of the concentration of a chemical species , in particular, of a solute in a solution , in terms of amount of substance per unit volume of solution. In chemistry , the most commonly used unit for molarity is the number of moles per liter , having the unit symbol mol/L or mol / dm in SI units. A solution with a concentration of 1 mol/L is said to be 1 molar , commonly designated as 1 M or 1 M . Molarity is often depicted with square brackets around the substance of interest; for example, the molarity of the hydrogen ion is depicted as [H ].
21-525: [REDACTED] Look up AM , A.M. , Am , am , or a.m. in Wiktionary, the free dictionary. AM or Am may refer to: Arts and entertainment [ edit ] Music [ edit ] A minor , a minor scale in music A.M. (Chris Young album) A.M. (Wilco album) AM (Abraham Mateo album) AM (Arctic Monkeys album) AM (musician) , American musician Am,
42-450: A character in the anthology Star Wars: Visions @fter Midnight (TV series) (logo: @m ), U.S. late night comedy celebrity game show Other media [ edit ] Allied Mastercomputer, the antagonist of the short story " I Have No Mouth, and I Must Scream " Education [ edit ] Active Minds , a mental health awareness charity Arts et Métiers ParisTech , a French engineering school Australian Museum ,
63-710: A complexity class related to Arthur–Merlin protocol Adrenomedullin , a protein Air mass (astronomy) , measure of the amount of air along the line of sight in astronomical observations Am, tropical monsoon climate in the Köppen climate classification Americium , symbol Am, a chemical element Attometre , a unit of length attomolar (aM), a unit of molar concentration Technology [ edit ] Amplitude modulation , an electronic communication technique AM broadcasting , radio broadcasting using amplitude modulation Additive manufacturing , or 3-D printing,
84-539: A museum in Australia Master of Arts , an academic degree Military [ edit ] A US Navy hull classification symbol: Minesweeper (AM) Air marshal , a senior air officer rank used in Commonwealth countries Anti-materiel rifle , rifle designed for use against military equipment Aviation structural mechanic , a U.S. Navy occupational rating Science [ edit ] AM,
105-574: A position in association football The Book of Amos , part of the Tanakh and Old Testament Australian Museum , Sydney See also [ edit ] [REDACTED] Search for "Am" on Misplaced Pages. All pages with titles beginning with AM All pages with titles beginning with am All pages with titles containing AM or AMs Pro–am `am (disambiguation) A&M (disambiguation) AM2 (disambiguation) AMS (disambiguation) Topics referred to by
126-427: A process of making a three-dimensional solid object of virtually any shape from a digital model. Agile modeling , a software engineering methodology for modeling and documenting software systems Automated Mathematician , an artificial intelligence program .am , Internet domain for Armenia .am, a file extension associated with Automake software Timekeeping [ edit ] a.m., ante meridiem ,
147-402: Is where the solvent is substance 1, and the solute is substance 2. For solutions with more than one solute, the conversion is The sum of molar concentrations gives the total molar concentration, namely the density of the mixture divided by the molar mass of the mixture or by another name the reciprocal of the molar volume of the mixture. In an ionic solution, ionic strength is proportional to
168-451: Is defined as amount of substance of solute per unit volume of solution, or per unit volume available to the species, represented by lowercase c {\displaystyle c} : Here, n {\displaystyle n} is the amount of the solute in moles, N {\displaystyle N} is the number of constituent particles present in volume V {\displaystyle V} (in litres) of
189-450: Is different from Wikidata All article disambiguation pages All disambiguation pages AM">AM The requested page title contains unsupported characters : ">". Return to Main Page . Molar concentration#Units Molar concentration or molarity is most commonly expressed in units of moles of solute per litre of solution . For use in broader applications, it
210-457: Is given by where M i {\displaystyle M_{i}} is the molar mass of constituent i {\displaystyle i} . The conversion to mole fraction x i {\displaystyle x_{i}} is given by where M ¯ {\displaystyle {\overline {M}}} is the average molar mass of the solution, ρ {\displaystyle \rho }
231-412: Is the density of the solution. A simpler relation can be obtained by considering the total molar concentration, namely, the sum of molar concentrations of all the components of the mixture: The conversion to mass fraction w i {\displaystyle w_{i}} is given by For binary mixtures, the conversion to molality b 2 {\displaystyle b_{2}}
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#1732766002147252-521: The A minor chord symbol Armeemarschsammlung (Army March Collection), catalog of German military march music Andrew Moore (musician) , Canadian musician known as A.M. DJ AM , American DJ and producer Skengdo & AM , British hip hop duo Television and radio [ edit ] AM (radio program) , Australian current affairs radio program American Morning , American morning television news program Am, Antes del Mediodía , Argentine current affairs television program Am,
273-447: The concentration refers to the original chemical formula in solution, the molar concentration is sometimes called formal concentration or formality ( F A ) or analytical concentration ( c A ). For example, if a sodium carbonate solution ( Na 2 CO 3 ) has a formal concentration of c ( Na 2 CO 3 ) = 1 mol/L, the molar concentrations are c ( Na ) = 2 mol/L and c ( CO 2− 3 ) = 1 mol/L because
294-824: The copula verb to be Am (cuneiform) , a written syllable Member of the Order of Australia , postnominal letters which can be used by a Member of the Order Assembly Member (disambiguation) , a political office formerly a Member of the National Assembly for Wales, now Member of the Senedd Member of the London Assembly Amharic language (ISO 639-1 language code am) Anguilla , LOC MARC code AM Armenia (ISO country code AM) Attacking midfielder ,
315-565: The prefix is never used alone, so "M" unambiguously denotes molar. Sub-multiples, such as "millimolar" (mM) and "nanomolar" (nM), consist of the unit preceded by an SI prefix : The conversion to number concentration C i {\displaystyle C_{i}} is given by where N A {\displaystyle N_{\text{A}}} is the Avogadro constant . The conversion to mass concentration ρ i {\displaystyle \rho _{i}}
336-471: The salt dissociates into these ions. In the International System of Units (SI), the coherent unit for molar concentration is mol / m . However, most chemical literature traditionally uses mol / dm , which is the same as mol / L . This traditional unit is often called a molar and denoted by the letter M, for example: The SI prefix " mega " (symbol M) has the same symbol. However,
357-401: The same term [REDACTED] This disambiguation page lists articles associated with the title AM . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=AM&oldid=1253616584 " Category : Disambiguation pages Hidden categories: Short description
378-418: The solution, and N A {\displaystyle N_{\text{A}}} is the Avogadro constant , since 2019 defined as exactly 6.022 140 76 × 10 mol . The ratio N V {\displaystyle {\frac {N}{V}}} is the number density C {\displaystyle C} . In thermodynamics , the use of molar concentration is often not convenient because
399-400: The sum of the molar concentration of salts. The sum of products between these quantities equals one: The molar concentration depends on the variation of the volume of the solution due mainly to thermal expansion. On small intervals of temperature, the dependence is where c i , T 0 {\displaystyle c_{i,T_{0}}} is the molar concentration at
420-512: The time period from midnight to noon, written e.g., 6 a.m. Anno Mundi , a calendar era based on the biblical creation of the world Transportation [ edit ] A.M. (automobile) , a 1906 French car Aeroméxico (IATA airline code AM), airline in Mexico All-mountain , a discipline of mountain biking Arkansas and Missouri Railroad Other uses [ edit ] First-person singular present of
441-471: The volume of most solutions slightly depends on temperature due to thermal expansion . This problem is usually resolved by introducing temperature correction factors , or by using a temperature-independent measure of concentration such as molality . The reciprocal quantity represents the dilution (volume) which can appear in Ostwald's law of dilution . If a molecule or salt dissociates in solution,
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