Mg Atomic Mass

Molar mass of MgO = 40.3044 g/mol

Convert grams Magnesium Oxide to moles or moles Magnesium Oxide to grams

For example, magnesium exists as a mixture of three isotopes, each with an atomic number of 12 and with mass numbers of 24, 25, and 26, respectively. These isotopes can be identified as 24 Mg, 25 Mg, and 26 Mg. Atomic mass (Da) Isotopic abundance (amount fraction) 24 Mg: 23.985 041 70(9) 0.7888, 0.7905 25 Mg: 24.985 8370(3) 0.099 88, 0.100 34 26 Mg: 25.982 5930(2) 0.1096, 0.1109 In 2011, the Commission has changed the standard atomic weight of magnesium to A r (Mg) = 24.304, 24.307 based on an evaluation of the effect of variation in isotopic.

Convert Atomic Mass Unit (amu) to Milligram (mg), Metric This converter features contemporary units of weight. There is also a special converter for historical units of weight you might want to visit for ancient, medieval and other old units that are no longer used. This is a free online Milligrams (mg) to Atomic Mass Unit (u) conversion calculator. You can convert weight and mass from Milligrams (mg) to Atomic Mass Unit (u) instantly using this tool. Also Know, what is the average mass of all isotopes of Mg? Three magnesium isotopes have atomic masses and relative abundances of 23.985 amu (78.99%), 24.986 amu (10.00%), and 25.982 (11.01%). Calculate the (average) atomic mass of magnesium.What is atomic mass number? The mass number (symbol A, from the German word Atomgewicht atomic weight), also called atomic mass number.

Molecular weight calculation:
24.3050 + 15.9994

Symbol	# of Atoms		Magnesium	Mg	24.3050	1	60.304%
Oxygen	O	15.9994	1	39.696%

In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together.

Using the chemical formula of the compound and the periodic table of elements, we can add up the atomic weights and calculate molecular weight of the substance.

Finding molar mass starts with units of grams per mole (g/mol). When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula.

Formula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction. These relative weights computed from the chemical equation are sometimes called equation weights.

If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by 100.

The atomic weights used on this site come from NIST, the National Institute of Standards and Technology. We use the most common isotopes. This is how to calculate molar mass (average molecular weight), which is based on isotropically weighted averages. This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass.

A common request on this site is to convert grams to moles. To complete this calculation, you have to know what substance you are trying to convert. The reason is that the molar mass of the substance affects the conversion. This site explains how to find molar mass.

[u to mg] (u:atomic mass unit, mg:milligram)

Convert u to mg

a weight or mass conversion table

How to convert atomic mass units to milligrams [u to mg]:

m_mg = m_u ×1.66053886 * 10 ^-21

How many milligrams in an atomic mass unit:
If m_u = 1 then
m_mg = 1.66053886 × 10^-21 mg

How many milligrams in 3 atomic mass units:
If m_u = 3 then
m_mg = 4.98161658 × 10^-21 mg

Note: Atomic mass unit is a metric unit of weight. Milligram is a metric unit of weight.

atomic mass unit	×10⁻¹⁹, milli- gram	atomic mass unit	×10⁻¹⁹, milli- gram	atomic mass unit	×10⁻¹⁹, milli- gram	atomic mass unit	×10⁻¹⁹, milli- gram	atomic mass unit	×10⁻¹⁹, milli- gram
1	0.016605389	21	0.348713161	41	0.680820933	61	1.012928705	81	1.345036477
2	0.033210777	22	0.365318549	42	0.697426321	62	1.029534093	82	1.361641865
3	0.049816166	23	0.381923938	43	0.714031710	63	1.046139482	83	1.378247254
4	0.066421554	24	0.398529326	44	0.730637098	64	1.062744870	84	1.394852642
5	0.083026943	25	0.415134715	45	0.747242487	65	1.079350259	85	1.411458031
6	0.099632332	26	0.431740104	46	0.763847876	66	1.095955648	86	1.428063420
7	0.116237720	27	0.448345492	47	0.780453264	67	1.112561036	87	1.444668808
8	0.132843109	28	0.464950881	48	0.797058653	68	1.129166425	88	1.461274197
9	0.149448497	29	0.481556269	49	0.813664041	69	1.145771813	89	1.477879585
10	0.166053886	30	0.498161658	50	0.830269430	70	1.162377202	90	1.494484974
11	0.182659275	31	0.514767047	51	0.846874819	71	1.178982591	91	1.511090363
12	0.199264663	32	0.531372435	52	0.863480207	72	1.195587979	92	1.527695751
13	0.215870052	33	0.547977824	53	0.880085596	73	1.212193368	93	1.544301140
14	0.232475440	34	0.564583212	54	0.896690984	74	1.228798756	94	1.560906528
15	0.249080829	35	0.581188601	55	0.913296373	75	1.245404145	95	1.577511917
16	0.265686218	36	0.597793990	56	0.929901762	76	1.262009534	96	1.594117306
17	0.282291606	37	0.614399378	57	0.946507150	77	1.278614922	97	1.610722694
18	0.298896995	38	0.631004767	58	0.963112539	78	1.295220311	98	1.627328083
19	0.315502383	39	0.647610155	59	0.979717927	79	1.311825699	99	1.643933471
20	0.332107772	40	0.664215544	60	0.996323316	80	1.328431088	100	1.660538860

atomic mass units to milligrams conversion cards

1
through
20
atomic mass units
1 u to mg = 1.6605389 × 10^-21 mg
2 u to mg = 3.3210777 × 10^-21 mg
3 u to mg = 4.9816166 × 10^-21 mg
4 u to mg = 6.6421554 × 10^-21 mg
5 u to mg = 8.3026943 × 10^-21 mg
6 u to mg = 9.9632332 × 10^-21 mg
7 u to mg = 1.1623772 × 10^-20 mg
8 u to mg = 1.32843109 × 10^-20 mg
9 u to mg = 1.49448497 × 10^-20 mg
10 u to mg = 1.66053886 × 10^-20 mg
11 u to mg = 1.82659275 × 10^-20 mg
12 u to mg = 1.99264663 × 10^-20 mg
13 u to mg = 2.15870052 × 10^-20 mg
14 u to mg = 2.3247544 × 10^-20 mg
15 u to mg = 2.49080829 × 10^-20 mg
16 u to mg = 2.65686218 × 10^-20 mg
17 u to mg = 2.82291606 × 10^-20 mg
18 u to mg = 2.98896995 × 10^-20 mg
19 u to mg = 3.15502383 × 10^-20 mg
20 u to mg = 3.32107772 × 10^-20 mg

21
through
40
atomic mass units
21 u to mg = 3.48713161 × 10^-20 mg
22 u to mg = 3.65318549 × 10^-20 mg
23 u to mg = 3.81923938 × 10^-20 mg
24 u to mg = 3.98529326 × 10^-20 mg
25 u to mg = 4.15134715 × 10^-20 mg
26 u to mg = 4.31740104 × 10^-20 mg
27 u to mg = 4.48345492 × 10^-20 mg
28 u to mg = 4.64950881 × 10^-20 mg
29 u to mg = 4.81556269 × 10^-20 mg
30 u to mg = 4.98161658 × 10^-20 mg
31 u to mg = 5.14767047 × 10^-20 mg
32 u to mg = 5.31372435 × 10^-20 mg
33 u to mg = 5.47977824 × 10^-20 mg
34 u to mg = 5.64583212 × 10^-20 mg
35 u to mg = 5.81188601 × 10^-20 mg
36 u to mg = 5.9779399 × 10^-20 mg
37 u to mg = 6.14399378 × 10^-20 mg
38 u to mg = 6.31004767 × 10^-20 mg
39 u to mg = 6.47610155 × 10^-20 mg
40 u to mg = 6.64215544 × 10^-20 mg

41
through
60
atomic mass units
41 u to mg = 6.80820933 × 10^-20 mg
42 u to mg = 6.97426321 × 10^-20 mg
43 u to mg = 7.1403171 × 10^-20 mg
44 u to mg = 7.30637098 × 10^-20 mg
45 u to mg = 7.47242487 × 10^-20 mg
46 u to mg = 7.63847876 × 10^-20 mg
47 u to mg = 7.80453264 × 10^-20 mg
48 u to mg = 7.97058653 × 10^-20 mg
49 u to mg = 8.13664041 × 10^-20 mg
50 u to mg = 8.3026943 × 10^-20 mg
51 u to mg = 8.46874819 × 10^-20 mg
52 u to mg = 8.63480207 × 10^-20 mg
53 u to mg = 8.80085596 × 10^-20 mg
54 u to mg = 8.96690984 × 10^-20 mg
55 u to mg = 9.13296373 × 10^-20 mg
56 u to mg = 9.29901762 × 10^-20 mg
57 u to mg = 9.4650715 × 10^-20 mg
58 u to mg = 9.63112539 × 10^-20 mg
59 u to mg = 9.79717927 × 10^-20 mg
60 u to mg = 9.96323316 × 10^-20 mg

61
through
80
atomic mass units
61 u to mg = 1.012928705 × 10^-19 mg
62 u to mg = 1.029534093 × 10^-19 mg
63 u to mg = 1.046139482 × 10^-19 mg
64 u to mg = 1.06274487 × 10^-19 mg
65 u to mg = 1.079350259 × 10^-19 mg
66 u to mg = 1.095955648 × 10^-19 mg
67 u to mg = 1.112561036 × 10^-19 mg
68 u to mg = 1.129166425 × 10^-19 mg
69 u to mg = 1.145771813 × 10^-19 mg
70 u to mg = 1.162377202 × 10^-19 mg
71 u to mg = 1.178982591 × 10^-19 mg
72 u to mg = 1.195587979 × 10^-19 mg
73 u to mg = 1.212193368 × 10^-19 mg
74 u to mg = 1.228798756 × 10^-19 mg
75 u to mg = 1.245404145 × 10^-19 mg
76 u to mg = 1.262009534 × 10^-19 mg
77 u to mg = 1.278614922 × 10^-19 mg
78 u to mg = 1.295220311 × 10^-19 mg
79 u to mg = 1.311825699 × 10^-19 mg
80 u to mg = 1.328431088 × 10^-19 mg

81
through
100
atomic mass units
81 u to mg = 1.345036477 × 10^-19 mg
82 u to mg = 1.361641865 × 10^-19 mg
83 u to mg = 1.378247254 × 10^-19 mg
84 u to mg = 1.394852642 × 10^-19 mg
85 u to mg = 1.411458031 × 10^-19 mg
86 u to mg = 1.42806342 × 10^-19 mg
87 u to mg = 1.444668808 × 10^-19 mg
88 u to mg = 1.461274197 × 10^-19 mg
89 u to mg = 1.477879585 × 10^-19 mg
90 u to mg = 1.494484974 × 10^-19 mg
91 u to mg = 1.511090363 × 10^-19 mg
92 u to mg = 1.527695751 × 10^-19 mg
93 u to mg = 1.54430114 × 10^-19 mg
94 u to mg = 1.560906528 × 10^-19 mg
95 u to mg = 1.577511917 × 10^-19 mg
96 u to mg = 1.594117306 × 10^-19 mg
97 u to mg = 1.610722694 × 10^-19 mg
98 u to mg = 1.627328083 × 10^-19 mg
99 u to mg = 1.643933471 × 10^-19 mg
100 u to mg = 1.66053886 × 10^-19 mg

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