#### Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of CuSO4 is 159.6086 g/mol
Compound name is copper(ii) sulfate

Convert between CuSO4 weight and moles
CompoundMolesWeight, g
CuSO4

Elemental composition of CuSO4
ElementSymbolAtomic weightAtomsMass percent
CopperCu63.546139.8136
SulfurS32.065120.0898
OxygenO15.9994440.0966

Mass percent compositionAtomic percent composition

Sample reactions for CuSO4
EquationReaction type
Zn + CuSO4 = ZnSO4 + Cusingle replacement
Al + CuSO4 = Al2(SO4)3 + Cusingle replacement
Fe + CuSO4 = FeSO4 + Cusingle replacement
CuSO4 + NaOH = Cu(OH)2 + Na2SO4double replacement
CuSO4 + Na2CO3 = CuCO3 + Na2SO4double replacement

Formula in Hill system is CuO4S

### 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, Ts, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg
• parantesis () or brackets [].
• Common compound names.
Examples of molar mass computations: NaCl, Ca(OH)2, K4[Fe(CN)6], CuSO4*5H2O, water, nitric acid, potassium permanganate, ethanol, fructose.

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: CO2, SO2.

### Definitions of molecular mass, molecular weight, molar mass and molar weight

• 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.
Weights of atoms and isotopes are from NIST article.

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