C27H27O27N26P25S24Ca25K24Cl24Na24Mg24Fe23F23Zn22Si22Cu21B21 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of C₂₇H₂₇O₂₇N₂₆P₂₅S₂₄Ca₂₅K₂₄Cl₂₄Na₂₄Mg₂₄Fe₂₃F₂₃Zn₂₂Si₂₂Cu₂₁B₂₁ is 11956.9573 g/mol

Convert between C₂₇H₂₇O₂₇N₂₆P₂₅S₂₄Ca₂₅K₂₄Cl₂₄Na₂₄Mg₂₄Fe₂₃F₂₃Zn₂₂Si₂₂Cu₂₁B₂₁ weight and moles

Compound	Moles		Weight, g
C₂₇H₂₇O₂₇N₂₆P₂₅S₂₄Ca₂₅K₂₄Cl₂₄Na₂₄Mg₂₄Fe₂₃F₂₃Zn₂₂Si₂₂Cu₂₁B₂₁

Elemental composition of C₂₇H₂₇O₂₇N₂₆P₂₅S₂₄Ca₂₅K₂₄Cl₂₄Na₂₄Mg₂₄Fe₂₃F₂₃Zn₂₂Si₂₂Cu₂₁B₂₁

Element	Symbol	Atomic weight	Atoms	Mass percent
Carbon	C	12.0107	27	2.7121
Hydrogen	H	1.00794	27	0.2276
Oxygen	O	15.9994	27	3.6128
Nitrogen	N	14.0067	26	3.0457
Phosphorus	P	30.973762	25	6.4761
Sulfur	S	32.065	24	6.4361
Calcium	Ca	40.078	25	8.3796
Potassium	K	39.0983	24	7.8478
Chlorine	Cl	35.453	24	7.1161
Sodium	Na	22.98976928	24	4.6145
Magnesium	Mg	24.3050	24	4.8785
Iron	Fe	55.845	23	10.7422
Fluorine	F	18.9984032	23	3.6545
Zinc	Zn	65.38	22	12.0295
Silicon	Si	28.0855	22	5.1675
Copper	Cu	63.546	21	11.1606
Boron	B	10.811	21	1.8987

Computing molar mass step by step
First, compute the number of each atom in C₂₇H₂₇O₂₇N₂₆P₂₅S₂₄Ca₂₅K₂₄Cl₂₄Na₂₄Mg₂₄Fe₂₃F₂₃Zn₂₂Si₂₂Cu₂₁B₂₁: C: 27, H: 27, O: 27, N: 26, P: 25, S: 24, Ca: 25, K: 24, Cl: 24, Na: 24, Mg: 24, Fe: 23, F: 23, Zn: 22, Si: 22, Cu: 21, B: 21 Then, lookup atomic weights for each element in periodic table: C: 12.0107, H: 1.00794, O: 15.9994, N: 14.0067, P: 30.973762, S: 32.065, Ca: 40.078, K: 39.0983, Cl: 35.453, Na: 22.98976928, Mg: 24.305, Fe: 55.845, F: 18.9984032, Zn: 65.38, Si: 28.0855, Cu: 63.546, B: 10.811 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (C₂₇H₂₇O₂₇N₂₆P₂₅S₂₄Ca₂₅K₂₄Cl₂₄Na₂₄Mg₂₄Fe₂₃F₂₃Zn₂₂Si₂₂Cu₂₁B₂₁) = ∑ Count_i * Weight_i = Count(C) * Weight(C) + Count(H) * Weight(H) + Count(O) * Weight(O) + Count(N) * Weight(N) + Count(P) * Weight(P) + Count(S) * Weight(S) + Count(Ca) * Weight(Ca) + Count(K) * Weight(K) + Count(Cl) * Weight(Cl) + Count(Na) * Weight(Na) + Count(Mg) * Weight(Mg) + Count(Fe) * Weight(Fe) + Count(F) * Weight(F) + Count(Zn) * Weight(Zn) + Count(Si) * Weight(Si) + Count(Cu) * Weight(Cu) + Count(B) * Weight(B) = 27 * 12.0107 + 27 * 1.00794 + 27 * 15.9994 + 26 * 14.0067 + 25 * 30.973762 + 24 * 32.065 + 25 * 40.078 + 24 * 39.0983 + 24 * 35.453 + 24 * 22.98976928 + 24 * 24.305 + 23 * 55.845 + 23 * 18.9984032 + 22 * 65.38 + 22 * 28.0855 + 21 * 63.546 + 21 * 10.811 = 11956.9573 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is C₂₇H₂₇B₂₁Ca₂₅Cl₂₄Cu₂₁F₂₃Fe₂₃K₂₄Mg₂₄N₂₆Na₂₄O₂₇P₂₅S₂₄Si₂₂Zn₂₂

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, T, 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

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