Template:Chem molar mass/doc

This template calculates the molecular mass (or molar mass) of a chemical compound. It is designed to be embedded in infoboxes {{Infobox drug}} and {{Chembox}}, but it can be used in-line just as well.

Rounding and uncertainty

(to be documented, 2019-02-09)

Parameters

Use chemical symbols to compose the molecular formula: {{Chem molar mass|H=2|O=1}} (for H
₂O) → 18.015 g·mol⁻¹

|round=

|unit=

The next parameters will always show:
|fixed= to enter a fixed (predefined) value+unit. It will overwrite any calculated value+unit.

|ref=<ref>some source</ref> will add the reference right after the unit.

|comment=Any textis added as a suffix, after a space and unedited (no brackets added etc.).

Example:

{{Chem molar mass|fixed=234.56 g·mol<sup>−1</sup>|ref=<ref>Some source</ref>|comment=My Comment}} → 234.56 g·mol⁻¹ My Comment

|sortable=yes, for use in sortable tables: will add a hidden sortable number, and omits the unit (see table below).

Blank parameter list

{{Chem molar mass | round = | unit = | fixed = | ref = | comment = | sortable= }}

{{Chem molar mass <!-- with 118 chemical symbols: -->|D= |H= |He= |Li= |Be= |B= |C= |N= |O= |F= |Ne= |Na= |Mg= |Al= |Si= |P= |S= |Cl= |Ar= |K= |Ca= |Sc= |Ti= |V= |Cr= |Mn= |Fe= |Co= |Ni= |Cu= |Zn= |Ga= |Ge= |As= |Se= |Br= |Kr= |Rb= |Sr= |Y= |Zr= |Nb= |Mo= |Tc= |Ru= |Rh= |Pd= |Ag= |Cd= |In= |Sn= |Sb= |Te= |I= |Xe= |Cs= |Ba= |La= |Ce= |Pr= |Nd= |Pm= |Sm= |Eu= |Gd= |Tb= |Dy= |Ho= |Er= |Tm= |Yb= |Lu= |Hf= |Ta= |W= |Re= |Os= |Ir= |Pt= |Au= |Hg= |Tl= |Pb= |Bi= |Po= |At= |Rn= |Fr= |Ra= |Ac= |Th= |Pa= |U= |Np= |Pu= |Am= |Cm= |Bk= |Cf= |Es= |Fm= |Md= |No= |Lr= |Rf= |Db= |Sg= |Bh= |Hs= |Mt= |Ds= |Rg= |Cn= |Nh= |Lv= |Mc= |Fl= |Ts= |Og= | round = | unit = | fixed = | ref = | comment = | sortable= }}

Standard atomic weights used

Chem molar mass tests
Atomic number	Element		Molar mass	Decimals	Formal standard atomic weight	s.a.w., formal short	Note
Z			calculated; g·mol−1	used in calc rounding	Ar, standard (data)	Ar, abridged and conventional
		C 9H 8O 4	180.159 g·mol−1 Template:Chem molar mass/sandbox				aspirin, calculated from formula
		C 9H 8O 4	180.157 g·mol−1				fixed value from ...
		|charge=+1	−0.000548579909070 g·mol−1
		|charge=-1	0.000548579909070 g·mol−1
		H+1	1.007 g·mol−1
1	hydrogen	H	1.008 g·mol−1	3	[1.00784, 1.00811]	1.008	atomic mass for H, not molar mass for H2
	[[]]	D	2.01355321275 g·mol−1	10			deuterium, 2H
2	helium	He	4.002602 g·mol−1	6	4.002602(2)	4.0026
3	lithium	Li	6.94 g·mol−1	2	[6.938, 6.997]	6.94
4	beryllium	Be	9.0121831 g·mol−1	7	9.0121831(5)	9.0122
5	boron	B	10.81 g·mol−1	2	[10.806, 10.821]	10.81
6	carbon	C	12.011 g·mol−1	3	[12.0096, 12.0116]	12.011
7	nitrogen	N	14.007 g·mol−1	3	[14.00643, 14.00728]	14.007
8	oxygen	O	15.999 g·mol−1	3	[15.99903, 15.99977]	15.999
9	fluorine	F	18.998403163 g·mol−1	9	18.998403163(6)	18.998
10	neon	Ne	20.1797 g·mol−1	4	20.1797(6)	20.180
11	sodium	Na	22.98976928 g·mol−1	8	22.98976928(2)	22.990
12	magnesium	Mg	24.305 g·mol−1	3	[24.304, 24.307]	24.305
13	aluminium	Al	26.9815384 g·mol−1	7	26.9815384(3)	26.982
14	silicon	Si	28.085 g·mol−1	3	[28.084, 28.086]	28.085
15	phosphorus	P	30.973761998 g·mol−1	9	30.973761998(5)	30.974
16	sulfur	S	32.06 g·mol−1	2	[32.059, 32.076]	32.06
17	chlorine	Cl	35.45 g·mol−1	2	[35.446, 35.457]	35.45
18	argon	Ar	39.948 g·mol−1	2	[39.792, 39.963]	39.95
19	potassium	K	39.0983 g·mol−1	4	39.0983(1)	39.098
20	calcium	Ca	40.078 g·mol−1	3	40.078(4)	40.078(4)
21	scandium	Sc	44.955908 g·mol−1	6	44.955908(5)	44.956
22	titanium	Ti	47.867 g·mol−1	3	47.867(1)	47.867
23	vanadium	V	50.9415 g·mol−1	4	50.9415(1)	50.942
24	chromium	Cr	51.9961 g·mol−1	4	51.9961(6)	51.996
25	manganese	Mn	54.938043 g·mol−1	6	54.938043(2)	54.938
26	iron	Fe	55.845 g·mol−1	3	55.845(2)	55.845(2)
27	cobalt	Co	58.933194 g·mol−1	6	58.933194(3)	58.933
28	nickel	Ni	58.6934 g·mol−1	4	58.6934(4)	58.693
29	copper	Cu	63.546 g·mol−1	3	63.546(3)	63.546(3)
30	zinc	Zn	65.38 g·mol−1	2	65.38(2)	65.38(2)
31	gallium	Ga	69.723 g·mol−1	3	69.723(1)	69.723
32	germanium	Ge	72.630 g·mol−1	3	72.630(8)	72.630(8)
33	arsenic	As	74.921595 g·mol−1	6	74.921595(6)	74.922
34	selenium	Se	78.971 g·mol−1	3	78.971(8)	78.971(8)
35	bromine	Br	79.904 g·mol−1	3	[79.901, 79.907]	79.904
36	krypton	Kr	83.798 g·mol−1	3	83.798(2)	83.798(2)
37	rubidium	Rb	85.4678 g·mol−1	4	85.4678(3)	85.468
38	strontium	Sr	87.62 g·mol−1	2	87.62(1)	87.62
39	yttrium	Y	88.90584 g·mol−1	5	88.90584(1)	88.906
40	zirconium	Zr	91.224 g·mol−1	3	91.224(2)	91.224(2)
41	niobium	Nb	92.90637 g·mol−1	5	92.90637(1)	92.906
42	molybdenum	Mo	95.95 g·mol−1	2	95.95(1)	95.95
43	technetium	Tc	98 g·mol−1	0
44	ruthenium	Ru	101.07 g·mol−1	2	101.07(2)	101.07(2)
45	rhodium	Rh	102.90549 g·mol−1	5	102.90549(2)	102.91
46	palladium	Pd	106.42 g·mol−1	2	106.42(1)	106.42
47	silver	Ag	107.8682 g·mol−1	4	107.8682(2)	107.87
48	cadmium	Cd	112.414 g·mol−1	3	112.414(4)	112.41
49	indium	In	114.818 g·mol−1	3	114.818(1)	114.82
50	tin	Sn	118.710 g·mol−1	3	118.710(7)	118.71
51	antimony	Sb	121.760 g·mol−1	3	121.760(1)	121.76
52	tellurium	Te	127.60 g·mol−1	2	127.60(3)	127.60(3)	(Does not follow atomic number)
53	iodine	I	126.90447 g·mol−1	5	126.90447(3)	126.90	(Does not follow atomic number)
54	xenon	Xe	131.293 g·mol−1	3	131.293(6)	131.29
55	caesium	Cs	132.90545196 g·mol−1	8	132.90545196(6)	132.91
56	barium	Ba	137.327 g·mol−1	3	137.327(7)	137.33
57	lanthanum	La	138.90547 g·mol−1	5	138.90547(7)	138.91
58	cerium	Ce	140.116 g·mol−1	3	140.116(1)	140.12
59	praseodymium	Pr	140.90766 g·mol−1	5	140.90766(1)	140.91
60	neodymium	Nd	144.242 g·mol−1	3	144.242(3)	144.24
61	promethium	Pm	145 g·mol−1	0
62	samarium	Sm	150.36 g·mol−1	2	150.36(2)	150.36(2)
63	europium	Eu	151.964 g·mol−1	3	151.964(1)	151.96
64	gadolinium	Gd	157.25 g·mol−1	2	157.25(3)	157.25(3)
65	terbium	Tb	158.925354 g·mol−1	6	158.925354(8)	158.93
66	dysprosium	Dy	162.500 g·mol−1	3	162.500(1)	162.50
67	holmium	Ho	164.930328 g·mol−1	6	164.930328(7)	164.93
68	erbium	Er	167.259 g·mol−1	3	167.259(3)	167.26
69	thulium	Tm	168.934218 g·mol−1	6	168.934218(6)	168.93
70	ytterbium	Yb	173.045 g·mol−1	3	173.045(10)	173.05
71	lutetium	Lu	174.9668 g·mol−1	4	174.9668(1)	174.97
72	hafnium	Hf	178.49 g·mol−1	2	178.486(6)	178.49(2)
73	tantalum	Ta	180.94788 g·mol−1	5	180.94788(2)	180.95
74	tungsten	W	183.84 g·mol−1	2	183.84(1)	183.84
75	rhenium	Re	186.207 g·mol−1	3	186.207(1)	186.21
76	osmium	Os	190.23 g·mol−1	2	190.23(3)	190.23(3)
77	iridium	Ir	192.217 g·mol−1	3	192.217(2)	192.22
78	platinum	Pt	195.084 g·mol−1	3	195.084(9)	195.08
79	gold	Au	196.966570 g·mol−1	6	196.966570(4)	196.97
80	mercury	Hg	200.592 g·mol−1	3	200.592(3)	200.59
81	thallium	Tl	204.38 g·mol−1	2	[204.382, 204.385]	204.38
82	lead	Pb	207.2 g·mol−1	1	[206.14, 207.94]	207.2±1.1
83	bismuth	Bi	208.98040 g·mol−1	5	208.98040(1)	208.98
84	polonium	Po	209 g·mol−1	0
85	astatine	At	210 g·mol−1	0
86	radon	Rn	222 g·mol−1	0
87	francium	Fr	223 g·mol−1	0
88	radium	Ra	226 g·mol−1	0
89	actinium	Ac	227 g·mol−1	0
90	thorium	Th	232.0377 g·mol−1	4	232.0377(4)	232.04
91	protactinium	Pa	231.03588 g·mol−1	5	231.03588(1)	231.04
92	uranium	U	238.02891 g·mol−1	5	238.02891(3)	238.03
93	neptunium	Np	237 g·mol−1	0
94	plutonium	Pu	244 g·mol−1	0
95	americium	Am	243 g·mol−1	0
96	curium	Cm	247 g·mol−1	0
97	berkelium	Bk	247 g·mol−1	0
98	californium	Cf	251 g·mol−1	0
99	einsteinium	Es	252 g·mol−1	0
100	fermium	Fm	257 g·mol−1	0
101	mendelevium	Md	258 g·mol−1	0
102	nobelium	No	259 g·mol−1	0
103	lawrencium	Lr	266 g·mol−1	0
104	rutherfordium	Rf	267 g·mol−1	0
105	dubnium	Db	268 g·mol−1	0
106	seaborgium	Sg	269 g·mol−1	0
107	bohrium	Bh	270 g·mol−1	0
108	hassium	Hs	270 g·mol−1	0
109	meitnerium	Mt	278 g·mol−1	0
110	darmstadtium	Ds	281 g·mol−1	0
111	roentgenium	Rg	282 g·mol−1	0
112	copernicium	Cn	285 g·mol−1	0
113	nihonium	Nh	286 g·mol−1	0
114	flerovium	Fl	289 g·mol−1	0
115	moscovium	Mc	290 g·mol−1	0
116	livermorium	Lv	293 g·mol−1	0
117	tennessine	Ts	294 g·mol−1	0
118	oganesson	Og	294 g·mol−1	0

References

These references will appear in the article, but this list appears only on this page.

Data sources (CIAAW)

Primarily, the atomic weights used here are defined by CIAAW [2]:

• "Standard Atomic Weights". Commission on Isotopic Abundances and Atomic Weights (CIAAW). 2015. Retrieved 2015-09-20. (68 elements)
• CIAAW also published additional lists in spreadsheet format (2013). It has additional conventional values for trade usage, and some background information on the numbers and calculations. (12 elements: B, Br, C, Cl, H, Li, Mg, N, O, S, Si, Tl).

Coplen, T.B.; et al. (2013). "Atomic weights of the elements 2013 (xls)". CIAAW. Retrieved 2015-05-26.

• Some unstable elements can naturally occur, and so are listed (4 elements: Bi, Th, Pa, U)
• Additional values are those of the most stable isotopes, as given in List of chemical elements (34 elements). This source is not supported by the CIAAW publications.

See also: "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry. February 2016. pp. 265–291. doi:10.1515/pac-2015-0305. eISSN 1365-3075. ISSN 0033-4545. Retrieved 2016-12-29.

• Possolo, Antonio; van der Veen, Adriaan M. H.; Meija, Juris; Hibbert, D. Brynn (2018-01-04). "Interpreting and propagating the uncertainty of the standard atomic weights (IUPAC Technical Report)". doi:10.1515/pac-2016-0402. Retrieved 2018-09-23.

Embedding in a template

The template is designed to be embedded in a template like {{Drugbox}}. The molecular formula can be entered like ...|H=2|O=1, and these values then are passed through to this subtemplate, together with the other parameters like |round=.

Units

• |unit=

1. When some |unit=kg/mol is used, it is added as is, always ("by the editor").

2. When |fixed= is used, no unit is added to this (could be in it already).

3. When |sortable= is used, no unit is added by the template (expected: put in top of table column).

4. When value is calculated, unit g/mol is added by template.

5. There is automatic no conversion from g to kg.

Uncertainty handling

• Uncertainty is ignored.

Calcium: A_r(Ca) being 40.078(4) is read and calculated as 40.078(0)

• Elements having interval notation are calculated by their conventional value.

Hydrogen: [1.00784, 1.00811] is calculated using conventional: 1.008(0)

Calculate cumulative uncertainties

• Possolo, Antonio; van der Veen, Adriaan M.H.; Meija, Juris; Brynn Hibbert, D. (2018-01-04). "Interpreting and propagating the uncertainty of the standard atomic weights (IUPAC Technical Report)". Retrieved 2019-02-08.
• [3], [4]

Tracking categories

• Category:Articles with erroneous molar mass calculations (0)
• Category:Pages using Chem molar mass with unsupported parameters (0)

TemplateData

This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. Click here to see a monthly parameter usage report for this template based on this TemplateData.

TemplateData for Chem molar mass

Parameter list (all element symbols, and template options)

No description. Template parameters Parameter Description Type Status H H no description Unknown optional D D no description Unknown optional Li Li no description Unknown optional B B no description Unknown optional C C no description Unknown optional N N no description Unknown optional O O no description Unknown optional Mg Mg no description Unknown optional Si Si no description Unknown optional S S no description Unknown optional Cl Cl no description Unknown optional Br Br no description Unknown optional Tl Tl no description Unknown optional He He no description Unknown optional Be Be no description Unknown optional F F no description Unknown optional Ne Ne no description Unknown optional Na Na no description Unknown optional Al Al no description Unknown optional P P no description Unknown optional K K no description Unknown optional Ar Ar no description Unknown optional Ca Ca no description Unknown optional Sc Sc no description Unknown optional Ti Ti no description Unknown optional V V no description Unknown optional Cr Cr no description Unknown optional Mn Mn no description Unknown optional Fe Fe no description Unknown optional Ni Ni no description Unknown optional Co Co no description Unknown optional Cu Cu no description Unknown optional Zn Zn no description Unknown optional Ga Ga no description Unknown optional Ge Ge no description Unknown optional As As no description Unknown optional Se Se no description Unknown optional Kr Kr no description Unknown optional Rb Rb no description Unknown optional Sr Sr no description Unknown optional Y Y no description Unknown optional Zr Zr no description Unknown optional Nb Nb no description Unknown optional Mo Mo no description Unknown optional Ru Ru no description Unknown optional Rh Rh no description Unknown optional Pd Pd no description Unknown optional Ag Ag no description Unknown optional Cd Cd no description Unknown optional In In no description Unknown optional Sn Sn no description Unknown optional Sb Sb no description Unknown optional I I no description Unknown optional Te Te no description Unknown optional Xe Xe no description Unknown optional Cs Cs no description Unknown optional Ba Ba no description Unknown optional La La no description Unknown optional Ce Ce no description Unknown optional Pr Pr no description Unknown optional Nd Nd no description Unknown optional Sm Sm no description Unknown optional Eu Eu no description Unknown optional Gd Gd no description Unknown optional Tb Tb no description Unknown optional Dy Dy no description Unknown optional Ho Ho no description Unknown optional Er Er no description Unknown optional Tm Tm no description Unknown optional Yb Yb no description Unknown optional Lu Lu no description Unknown optional Hf Hf no description Unknown optional Ta Ta no description Unknown optional W W no description Unknown optional Re Re no description Unknown optional Os Os no description Unknown optional Ir Ir no description Unknown optional Pt Pt no description Unknown optional Au Au no description Unknown optional Hg Hg no description Unknown optional Pb Pb no description Unknown optional Bi Bi no description Unknown optional Pa Pa no description Unknown optional Th Th no description Unknown optional U U no description Unknown optional Tc Tc no description Unknown optional Pm Pm no description Unknown optional Po Po no description Unknown optional At At no description Unknown optional Rn Rn no description Unknown optional Fr Fr no description Unknown optional Ra Ra no description Unknown optional Ac Ac no description Unknown optional Np Np no description Unknown optional Pu Pu no description Unknown optional Am Am no description Unknown optional Cm Cm no description Unknown optional Bk Bk no description Unknown optional Cf Cf no description Unknown optional Es Es no description Unknown optional Fm Fm no description Unknown optional Md Md no description Unknown optional No No no description Unknown optional Lr Lr no description Unknown optional Rf Rf no description Unknown optional Db Db no description Unknown optional Sg Sg no description Unknown optional Bh Bh no description Unknown optional Hs Hs no description Unknown optional Mt Mt no description Unknown optional Ds Ds no description Unknown optional Rg Rg no description Unknown optional Cn Cn no description Unknown optional Nh Nh no description Unknown optional Fl Fl no description Unknown optional Mc Mc no description Unknown optional Lv Lv no description Unknown optional Ts Ts no description Unknown optional Og Og no description Unknown optional round round no description Unknown optional unit unit no description Unknown optional ref ref no description Unknown optional comment comment no description Unknown optional fixed fixed no description Unknown optional sortable sortable no description Unknown optional

See also

• {{Chem molar mass/format}} -- subtemplate
• {{Chem molar mass/calc charge}} -- subtemplate
• {{Chem}} (formula)
• {{Atomic mass}}
• {{Molar mass}}

{{Chem molar mass/sandbox}} -- tests sandbox template too (compare values).