MgBr2O3N12C34P17S26Fe2Au12K6I18U5Zn2 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of MgBr₂O₃N₁₂C₃₄P₁₇S₂₆Fe₂Au₁₂K₆I₁₈U₅Zn₂ is 8483.8630 g/mol

Convert between MgBr₂O₃N₁₂C₃₄P₁₇S₂₆Fe₂Au₁₂K₆I₁₈U₅Zn₂ weight and moles

Compound	Moles		Weight, g
MgBr₂O₃N₁₂C₃₄P₁₇S₂₆Fe₂Au₁₂K₆I₁₈U₅Zn₂

Elemental composition of MgBr₂O₃N₁₂C₃₄P₁₇S₂₆Fe₂Au₁₂K₆I₁₈U₅Zn₂

Element	Symbol	Atomic weight	Atoms	Mass percent
Magnesium	Mg	24.3050	1	0.2865
Bromine	Br	79.904	2	1.8837
Oxygen	O	15.9994	3	0.5658
Nitrogen	N	14.0067	12	1.9812
Carbon	C	12.0107	34	4.8134
Phosphorus	P	30.973762	17	6.2065
Sulfur	S	32.065	26	9.8268
Iron	Fe	55.845	2	1.3165
Gold	Au	196.966569	12	27.8599
Potassium	K	39.0983	6	2.7651
Iodine	I	126.90447	18	26.9250
Uranium	U	238.02891	5	14.0283
Zinc	Zn	65.38	2	1.5413

Computing molar mass step by step
First, compute the number of each atom in MgBr₂O₃N₁₂C₃₄P₁₇S₂₆Fe₂Au₁₂K₆I₁₈U₅Zn₂: Mg: 1, Br: 2, O: 3, N: 12, C: 34, P: 17, S: 26, Fe: 2, Au: 12, K: 6, I: 18, U: 5, Zn: 2 Then, lookup atomic weights for each element in periodic table: Mg: 24.305, Br: 79.904, O: 15.9994, N: 14.0067, C: 12.0107, P: 30.973762, S: 32.065, Fe: 55.845, Au: 196.966569, K: 39.0983, I: 126.90447, U: 238.02891, Zn: 65.38 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (MgBr₂O₃N₁₂C₃₄P₁₇S₂₆Fe₂Au₁₂K₆I₁₈U₅Zn₂) = ∑ Count_i * Weight_i = Count(Mg) * Weight(Mg) + Count(Br) * Weight(Br) + Count(O) * Weight(O) + Count(N) * Weight(N) + Count(C) * Weight(C) + Count(P) * Weight(P) + Count(S) * Weight(S) + Count(Fe) * Weight(Fe) + Count(Au) * Weight(Au) + Count(K) * Weight(K) + Count(I) * Weight(I) + Count(U) * Weight(U) + Count(Zn) * Weight(Zn) = 1 * 24.305 + 2 * 79.904 + 3 * 15.9994 + 12 * 14.0067 + 34 * 12.0107 + 17 * 30.973762 + 26 * 32.065 + 2 * 55.845 + 12 * 196.966569 + 6 * 39.0983 + 18 * 126.90447 + 5 * 238.02891 + 2 * 65.38 = 8483.8630 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₃₄Au₁₂Br₂Fe₂I₁₈K₆MgN₁₂O₃P₁₇S₂₆U₅Zn₂

Computing molar mass (molar weight)

To calculate molar mass of a chemical compound enter its formula and click 'Compute'. In chemical formula you may use:

Any chemical element. Capitalize the first letter in chemical symbol and use lower case for the remaining letters: Ca, Fe, Mg, Mn, S, O, H, C, N, Na, K, Cl, Al.
Functional groups: D, Ph, Me, Et, Bu, AcAc, For, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg
parenthesis () or brackets [].
Common compound names.

Examples of molar mass computations: NaCl, Ca(OH)2, K4[Fe(CN)6], CuSO4*5H2O, nitric acid, potassium permanganate, ethanol, fructose, caffeine, water.

Molar mass calculator also displays common compound name, Hill formula, elemental composition, mass percent composition, atomic percent compositions and allows to convert from weight to number of moles and vice versa.

Computing molecular weight (molecular mass)

To calculate molecular weight of a chemical compound enter it's formula, specify its isotope mass number after each element in square brackets.
Examples of molecular weight computations: C[14]O[16]2, S[34]O[16]2.

Definitions

Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
Mole is a standard scientific unit for measuring large quantities of very small entities such as atoms and molecules. One mole contains exactly 6.022 ×10²³ particles (Avogadro's number)

Steps to calculate molar mass

Identify the compound: write down the chemical formula of the compound. For example, water is H₂O, meaning it contains two hydrogen atoms and one oxygen atom.
Find atomic masses: look up the atomic masses of each element present in the compound. The atomic mass is usually found on the periodic table and is given in atomic mass units (amu).
Calculate molar mass of each element: multiply the atomic mass of each element by the number of atoms of that element in the compound.
Add them together: add the results from step 3 to get the total molar mass of the compound.

Example: calculating molar mass

Let's calculate the molar mass of carbon dioxide (CO₂):

Carbon (C) has an atomic mass of about 12.01 amu.
Oxygen (O) has an atomic mass of about 16.00 amu.
CO₂ has one carbon atom and two oxygen atoms.
The molar mass of carbon dioxide is 12.01 + (2 × 16.00) = 44.01 g/mol.

Lesson on computing molar mass

Weights of atoms and isotopes are from NIST article.

molecular weights calculated today

Please let us know how we can improve this web app.

How to cite?

Choose languageDeutschEnglishEspañol Français Italiano Nederlands Polski Português Русский 中文日本語 한국어