S16Cl17Ar18K19Ca20Sc21Ti22V23Cr24Mn25Fe26Co27Ni28Cu29Zn30 molar mass

Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of S₁₆Cl₁₇Ar₁₈K₁₉Ca₂₀Sc₂₁Ti₂₂V₂₃Cr₂₄Mn₂₅Fe₂₆Co₂₇Ni₂₈Cu₂₉Zn₃₀ is 17660.2083 g/mol

Convert between S₁₆Cl₁₇Ar₁₈K₁₉Ca₂₀Sc₂₁Ti₂₂V₂₃Cr₂₄Mn₂₅Fe₂₆Co₂₇Ni₂₈Cu₂₉Zn₃₀ weight and moles

Compound	Moles		Weight, g
S₁₆Cl₁₇Ar₁₈K₁₉Ca₂₀Sc₂₁Ti₂₂V₂₃Cr₂₄Mn₂₅Fe₂₆Co₂₇Ni₂₈Cu₂₉Zn₃₀

Elemental composition of S₁₆Cl₁₇Ar₁₈K₁₉Ca₂₀Sc₂₁Ti₂₂V₂₃Cr₂₄Mn₂₅Fe₂₆Co₂₇Ni₂₈Cu₂₉Zn₃₀

Element	Symbol	Atomic weight	Atoms	Mass percent
Sulfur	S	32.065	16	2.9051
Chlorine	Cl	35.453	17	3.4128
Argon	Ar	39.948	18	4.0717
Potassium	K	39.0983	19	4.2064
Calcium	Ca	40.078	20	4.5388
Scandium	Sc	44.955912	21	5.3458
Titanium	Ti	47.867	22	5.9630
Vanadium	V	50.9415	23	6.6344
Chromium	Cr	51.9961	24	7.0662
Manganese	Mn	54.938045	25	7.7771
Iron	Fe	55.845	26	8.2217
Cobalt	Co	58.933195	27	9.0101
Nickel	Ni	58.6934	28	9.3058
Copper	Cu	63.546	29	10.4350
Zinc	Zn	65.38	30	11.1063

Computing molar mass step by step
First, compute the number of each atom in S₁₆Cl₁₇Ar₁₈K₁₉Ca₂₀Sc₂₁Ti₂₂V₂₃Cr₂₄Mn₂₅Fe₂₆Co₂₇Ni₂₈Cu₂₉Zn₃₀: S: 16, Cl: 17, Ar: 18, K: 19, Ca: 20, Sc: 21, Ti: 22, V: 23, Cr: 24, Mn: 25, Fe: 26, Co: 27, Ni: 28, Cu: 29, Zn: 30 Then, lookup atomic weights for each element in periodic table: S: 32.065, Cl: 35.453, Ar: 39.948, K: 39.0983, Ca: 40.078, Sc: 44.955912, Ti: 47.867, V: 50.9415, Cr: 51.9961, Mn: 54.938045, Fe: 55.845, Co: 58.933195, Ni: 58.6934, Cu: 63.546, Zn: 65.38 Now, compute the sum of products of number of atoms to the atomic weight: Molar mass (S₁₆Cl₁₇Ar₁₈K₁₉Ca₂₀Sc₂₁Ti₂₂V₂₃Cr₂₄Mn₂₅Fe₂₆Co₂₇Ni₂₈Cu₂₉Zn₃₀) = ∑ Count_i * Weight_i = Count(S) * Weight(S) + Count(Cl) * Weight(Cl) + Count(Ar) * Weight(Ar) + Count(K) * Weight(K) + Count(Ca) * Weight(Ca) + Count(Sc) * Weight(Sc) + Count(Ti) * Weight(Ti) + Count(V) * Weight(V) + Count(Cr) * Weight(Cr) + Count(Mn) * Weight(Mn) + Count(Fe) * Weight(Fe) + Count(Co) * Weight(Co) + Count(Ni) * Weight(Ni) + Count(Cu) * Weight(Cu) + Count(Zn) * Weight(Zn) = 16 * 32.065 + 17 * 35.453 + 18 * 39.948 + 19 * 39.0983 + 20 * 40.078 + 21 * 44.955912 + 22 * 47.867 + 23 * 50.9415 + 24 * 51.9961 + 25 * 54.938045 + 26 * 55.845 + 27 * 58.933195 + 28 * 58.6934 + 29 * 63.546 + 30 * 65.38 = 17660.2083 g/mol

Mass percent composition	Atomic percent composition

Formula in Hill system is Ar₁₈Ca₂₀Cl₁₇Co₂₇Cr₂₄Cu₂₉Fe₂₆K₁₉Mn₂₅Ni₂₈S₁₆Sc₂₁Ti₂₂V₂₃Zn₃₀

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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