সমললৈ যাওক

সাঁচ:Chem molar mass

অসমীয়া ৱিকিপিডিয়াৰ পৰা

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.

Use chemical symbols to compose the molecular formula: {{Chem molar mass|H=2|O=1}} (for H
2
O
) → 18.02 g·mol−1

|round= by default the calculated number is rounded to 2 decimals.

|round=no will show all decimals:
{{Chem molar mass|Be=1|round=no}} → 9.0121831 g·mol−1
|round=a number will round to that number of decimals
{{Chem molar mass|Be=1|round=4}} → 9.0122 g·mol−1

|unit= changes the unit for the calculated result. The default unit is g·mol−1.

{{Chem molar mass|H=2|O=1|unit=gram per mole}} → 18.02 gram per mole


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[1] My Comment

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

{{Chem molar mass
| round   =
| unit    =
| fixed   =
| ref     =
| comment =
| sortable=
| catname =
}}
{{Chem molar mass
<!-- with 118 chemical symbols: -->|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=
| catname =
}}

Standard atomic weights used

[সম্পাদনা কৰক]
Atomic number
Z
Element Molar mass
g·mol−1
Formal standard atomic weight (Ar, standard)[2] s.a.w., formal short
(Ar, abridged and conventional)[2]
Note
 
C
9
H
8
O
4
180.157 calculated from formula
C
9
H
8
O
4
180.157 g·mol−1 calculated from formula
C
9
H
8
O
4
180.159 aspirin
1 H 1.008 [1.007841.00811] সাঁচ:Infobox element/symbol-to-saw/formalshort
2 He 4.002602 4.002602(2) সাঁচ:Infobox element/symbol-to-saw/formalshort
3 Li 6.94 [6.9386.997] সাঁচ:Infobox element/symbol-to-saw/formalshort
4 Be 9.0121831 9.0121831(5) সাঁচ:Infobox element/symbol-to-saw/formalshort
5 B 10.81 [10.80610.821] সাঁচ:Infobox element/symbol-to-saw/formalshort
6 C 12.011 [12.009612.0116] সাঁচ:Infobox element/symbol-to-saw/formalshort
7 N 14.007 [14.0064314.00728] সাঁচ:Infobox element/symbol-to-saw/formalshort
8 O 15.999 [15.9990315.99977] সাঁচ:Infobox element/symbol-to-saw/formalshort
9 F 18.998403163 18.998403163(6) সাঁচ:Infobox element/symbol-to-saw/formalshort
10 Ne 20.1797 20.1797(6) সাঁচ:Infobox element/symbol-to-saw/formalshort
11 Na 22.98976928 22.98976928(2) সাঁচ:Infobox element/symbol-to-saw/formalshort
12 Mg 24.305 [24.30424.307] সাঁচ:Infobox element/symbol-to-saw/formalshort
13 Al 26.9815385 26.9815384(3) সাঁচ:Infobox element/symbol-to-saw/formalshort
14 Si 28.085 [28.08428.086] সাঁচ:Infobox element/symbol-to-saw/formalshort
15 P 30.973761998 30.973761998(5) সাঁচ:Infobox element/symbol-to-saw/formalshort
16 S 32.06 [32.05932.076] সাঁচ:Infobox element/symbol-to-saw/formalshort
17 Cl 35.45 [35.44635.457] সাঁচ:Infobox element/symbol-to-saw/formalshort
18 Ar 39.948 [39.79239.963] সাঁচ:Infobox element/symbol-to-saw/formalshort
19 K 39.0983 39.0983(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
20 Ca 40.078 40.078(4) সাঁচ:Infobox element/symbol-to-saw/formalshort
21 Sc 44.955908 44.955908(5) সাঁচ:Infobox element/symbol-to-saw/formalshort
22 Ti 47.867 47.867(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
23 V 50.9415 50.9415(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
24 Cr 51.9961 51.9961(6) সাঁচ:Infobox element/symbol-to-saw/formalshort
25 Mn 54.938044 54.938043(2) সাঁচ:Infobox element/symbol-to-saw/formalshort
26 Fe 55.845 55.845(2) সাঁচ:Infobox element/symbol-to-saw/formalshort
27 Co 58.933194 58.933194(3) সাঁচ:Infobox element/symbol-to-saw/formalshort
28 Ni 58.6934 58.6934(4) সাঁচ:Infobox element/symbol-to-saw/formalshort
29 Cu 63.546 63.546(3) সাঁচ:Infobox element/symbol-to-saw/formalshort
30 Zn 65.38 65.38(2) সাঁচ:Infobox element/symbol-to-saw/formalshort
31 Ga 69.723 69.723(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
32 Ge 72.63 72.630(8) সাঁচ:Infobox element/symbol-to-saw/formalshort
33 As 74.921595 74.921595(6) সাঁচ:Infobox element/symbol-to-saw/formalshort
34 Se 78.971 78.971(8) সাঁচ:Infobox element/symbol-to-saw/formalshort
35 Br 79.904 [79.90179.907] সাঁচ:Infobox element/symbol-to-saw/formalshort
36 Kr 83.798 83.798(2) সাঁচ:Infobox element/symbol-to-saw/formalshort
37 Rb 85.4678 85.4678(3) সাঁচ:Infobox element/symbol-to-saw/formalshort
38 Sr 87.62 87.62(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
39 Y 88.90584 88.90584(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
40 Zr 91.224 91.224(2) সাঁচ:Infobox element/symbol-to-saw/formalshort
41 Nb 92.90637 92.90637(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
42 Mo 95.95 95.95(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
43 Tc 98 সাঁচ:Infobox element/symbol-to-saw/formalshort
44 Ru 101.07 101.07(2) সাঁচ:Infobox element/symbol-to-saw/formalshort
45 Rh 102.9055 102.90549(2) সাঁচ:Infobox element/symbol-to-saw/formalshort
46 Pd 106.42 106.42(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
47 Ag 107.8682 107.8682(2) সাঁচ:Infobox element/symbol-to-saw/formalshort
48 Cd 112.414 112.414(4) সাঁচ:Infobox element/symbol-to-saw/formalshort
49 In 114.818 114.818(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
50 Sn 118.71 118.710(7) সাঁচ:Infobox element/symbol-to-saw/formalshort
51 Sb 121.76 121.760(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
52 Te 127.6 127.60(3) সাঁচ:Infobox element/symbol-to-saw/formalshort (Does not follow atomic number)
53 I 126.90447 126.90447(3) সাঁচ:Infobox element/symbol-to-saw/formalshort (Does not follow atomic number)
54 Xe 131.293 131.293(6) সাঁচ:Infobox element/symbol-to-saw/formalshort
55 Cs 132.90545196 132.90545196(6) সাঁচ:Infobox element/symbol-to-saw/formalshort
56 Ba 137.327 137.327(7) সাঁচ:Infobox element/symbol-to-saw/formalshort
57 La 138.90547 138.90547(7) সাঁচ:Infobox element/symbol-to-saw/formalshort
58 Ce 140.116 140.116(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
59 Pr 140.90766 140.90766(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
60 Nd 144.242 144.242(3) সাঁচ:Infobox element/symbol-to-saw/formalshort
61 Pm 145 সাঁচ:Infobox element/symbol-to-saw/formalshort
62 Sm 150.36 150.36(2) সাঁচ:Infobox element/symbol-to-saw/formalshort
63 Eu 151.964 151.964(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
64 Gd 157.25 157.25(3) সাঁচ:Infobox element/symbol-to-saw/formalshort
65 Tb 158.92535 158.925354(8) সাঁচ:Infobox element/symbol-to-saw/formalshort
66 Dy 162.5 162.500(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
67 Ho 164.93033 164.930328(7) সাঁচ:Infobox element/symbol-to-saw/formalshort
68 Er 167.259 167.259(3) সাঁচ:Infobox element/symbol-to-saw/formalshort
69 Tm 168.93422 168.934218(6) সাঁচ:Infobox element/symbol-to-saw/formalshort
70 Yb 173.045 173.045(10) সাঁচ:Infobox element/symbol-to-saw/formalshort
71 Lu 174.9668 174.9668(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
72 Hf 178.49 178.486(6) সাঁচ:Infobox element/symbol-to-saw/formalshort
73 Ta 180.94788 180.94788(2) সাঁচ:Infobox element/symbol-to-saw/formalshort
74 W 183.84 183.84(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
75 Re 186.207 186.207(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
76 Os 190.23 190.23(3) সাঁচ:Infobox element/symbol-to-saw/formalshort
77 Ir 192.217 192.217(2) সাঁচ:Infobox element/symbol-to-saw/formalshort
78 Pt 195.084 195.084(9) সাঁচ:Infobox element/symbol-to-saw/formalshort
79 Au 196.966569 196.966570(4) সাঁচ:Infobox element/symbol-to-saw/formalshort
80 Hg 200.592 200.592(3) সাঁচ:Infobox element/symbol-to-saw/formalshort
81 Tl 204.38 [204.382204.385] সাঁচ:Infobox element/symbol-to-saw/formalshort
82 Pb 207.2 207.2(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
83 Bi 208.9804 208.98040(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
84 Po 209 সাঁচ:Infobox element/symbol-to-saw/formalshort
85 At 210 সাঁচ:Infobox element/symbol-to-saw/formalshort
86 Rn 222 সাঁচ:Infobox element/symbol-to-saw/formalshort
87 Fr 223 সাঁচ:Infobox element/symbol-to-saw/formalshort
88 Ra 226 সাঁচ:Infobox element/symbol-to-saw/formalshort
89 Ac 227 সাঁচ:Infobox element/symbol-to-saw/formalshort
90 Th 232.0377 232.0377(4) সাঁচ:Infobox element/symbol-to-saw/formalshort
91 Pa 231.03588 231.03588(1) সাঁচ:Infobox element/symbol-to-saw/formalshort
92 U 238.02891 238.02891(3) সাঁচ:Infobox element/symbol-to-saw/formalshort
93 Np 237 সাঁচ:Infobox element/symbol-to-saw/formalshort
94 Pu 244 সাঁচ:Infobox element/symbol-to-saw/formalshort
95 Am 243 সাঁচ:Infobox element/symbol-to-saw/formalshort
96 Cm 247 সাঁচ:Infobox element/symbol-to-saw/formalshort
97 Bk 247 সাঁচ:Infobox element/symbol-to-saw/formalshort
98 Cf 251 সাঁচ:Infobox element/symbol-to-saw/formalshort
99 Es 252 সাঁচ:Infobox element/symbol-to-saw/formalshort
100 Fm 257 সাঁচ:Infobox element/symbol-to-saw/formalshort
101 Md 258 সাঁচ:Infobox element/symbol-to-saw/formalshort
102 No 259 সাঁচ:Infobox element/symbol-to-saw/formalshort
103 Lr 266 সাঁচ:Infobox element/symbol-to-saw/formalshort
104 Rf 267 সাঁচ:Infobox element/symbol-to-saw/formalshort
105 Db 268 সাঁচ:Infobox element/symbol-to-saw/formalshort
106 Sg 269 সাঁচ:Infobox element/symbol-to-saw/formalshort
107 Bh 270 সাঁচ:Infobox element/symbol-to-saw/formalshort
108 Hs 269 সাঁচ:Infobox element/symbol-to-saw/formalshort
109 Mt 278 সাঁচ:Infobox element/symbol-to-saw/formalshort
110 Ds 281 সাঁচ:Infobox element/symbol-to-saw/formalshort
111 Rg 281 সাঁচ:Infobox element/symbol-to-saw/formalshort
112 Cn 285 সাঁচ:Infobox element/symbol-to-saw/formalshort
113 Nh 286 সাঁচ:Infobox element/symbol-to-saw/formalshort
114 Fl 289 সাঁচ:Infobox element/symbol-to-saw/formalshort
115 Mc 289 সাঁচ:Infobox element/symbol-to-saw/formalshort
116 Lv 293 সাঁচ:Infobox element/symbol-to-saw/formalshort
117 Ts 294 সাঁচ:Infobox element/symbol-to-saw/formalshort
118 Og 294 সাঁচ:Infobox element/symbol-to-saw/formalshort

Primarily, the atomic weights used here are defined by CIAAW [1]:

Coplen, T.B.; Brand, W.A. (2013). "Atomic weights of the elements 2013 (xls)". CIAAW. http://www.ciaaw.org/publications.htm। আহৰণ কৰা হৈছে: 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)". February 2016. doi:10.1515/pac-2015-0305. ISSN 0033-4545. https://www.degruyter.com/view/j/pac.2016.88.issue-3/pac-2015-0305/pac-2015-0305.xml। আহৰণ কৰা হৈছে: 2016-12-29. 

Embedding in a template

[সম্পাদনা কৰক]

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=.

For this usage one extra parameter is available:
|catname=. A category name entered here, which will be used as maintenance category for articles that have both calculated and fixed input. These are two inputs for one data value. The maintenance task is to remove the |fixed= input (unless overwriting is intentional).

Know issue: uncertainty

[সম্পাদনা কৰক]

Atomic weights are given with a precision and uncertainty, for example: 20.1797(6) for neon (more here).

Uncertainty

This template does not maintain the uncertainty (the bracketed part). When done correctly, the uncertainty could influence the result, especially when precision (number of decimals) is larger.

Rounding

This template usually does rounding on the calculated result, to 2 decimals by default:

For neon: {{Chem molar mass|Ne=1}} → 20.18 g·mol−1

Two decimals is common practice for trade and most laboratory situations. However, rounding is set to more decimals, and the compounnd has atoms with less precision, the resulting number will be inaccurate (suggesting a wrong precision). For example strontium :

{{Chem molar mass|Sr=1|round=4}} → 87.62০০ g·mol−1

Six elements have values ending with a final decimal being "0" (a zero), like Sn: 118.710. This value does not show for technical reasons (the calculation 'rounds them away'), but it does signify an extra precision. The six elements are Sn, Rh, Ge, Sb, Dy, Bi.

Calculate cumulative uncertainties

[সম্পাদনা কৰক]
  1. Some source
  2. 2.0 2.1 Meija, Juris; Coplen, Tyler B.; Berglund, Michael; Brand, Willi A.; De Bièvre, Paul; Gröning, Manfred; Holden, Norman E.; Irrgeher, Johanna et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry খণ্ড 88 (3): 265–91. doi:10.1515/pac-2015-0305.