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9-15

molality

URNurn:iso:std:iso:80000:-9:ed-2:en:item:9-15

https://metanorma.github.io/isq-smart/quantities/part-9/t9-15
urn:iso:std:iso:80000:-9:ed-2:en:item:9-15

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-9:ed-2:en:item:9-15

IEC

urn:iec:std:iec:80000-9:2019:::item:9-15

Designations

ENmolality

FRmolalité

Symbol

b_{B}

m_{B}

Notation systems

Rendered

b_{B}

Rendered

m_{B}

AsciiMath

b_"B"

AsciiMath

m_"B"

LaTeX

b_{\text{B}}

LaTeX

m_{\text{B}}

Definition

quotient of amount of substance (amount of substance) of solute $B$ and mass $m_{A}$ (ISO 80000-4: Mechanics) of the solvent substance $A$

b_{B} = n_{B} / m_{A}

quotient de la quantité de matière (amount of substance) du soluté $B$ par la masse $m_{A}$ (ISO 80000-4: Mechanics) du solvant $A$

b_{B} = n_{B} / m_{A}

Units

m o \frac{l}{k} g

mole per kilogram

View related quantities →

Notes

The alternative symbol $m_{B}$ should be avoided in situations where it might be mistaken for the mass of substance $B$ . However, the symbol $m_{B}$ is much more commonly used than the symbol $b_{B}$ for molality, despite the possible confusion with mass.

Il convient d'éviter le symbole alternatif $m_{B}$ dans les situations où il peut être confondu avec la masse du constituant $B$ . Toutefois, le symbole $m_{B}$ est plus communément utilisé que le symbole $b_{B}$ pour la molalité, malgré l'éventuelle confusion avec la masse.

Referenced by

activity of solute activity coefficient standard absolute activity <in a solution>osmotic factor of solvent ionic strength

Concept HierarchyPendrill (2024)

M⁻¹ NM⁻¹ N quantitiesLevel 0 · Kind

Broader concepts

◇ M⁻¹ N quantities

Characterizes

● solute● solvent● substance

Ontology
isq:Quantity smart:TermEntry

Class Hierarchy

smart:Entity smart:TermEntryisq:Quantity

A physical quantity as defined in ISO/IEC 80000, with associated symbols, definitions, and units of measurement.

Instance IRI

isq:t9-15

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	9-15
skosxl:prefLabel	"molality"@en
skosxl:altLabel	"b_"B""@en"m_"B""@en
skos:definition	quotient of amount of substance (<<t9-2>>) of solute stem:["B"] and mass stem:[m_"A"] (<<iso80000-4>>) of the solvent su…
skos:note	The alternative symbol stem:[m_"B"] should be avoided in situations where it might be mistaken for the mass of substance…
isq:hasUnit	mol/kg (mole per kilogram)
isq:hasDimension	isq:Dimension
smart:hasBindingnessType	bindingness-type:normative
dcterms:isPartOf	isq:part-9

Related Entities

isq:QuantityShape isq:part-9 isq:Unit isq:Dimension isq:hasDimension smart:TermEntry