Molar Mass, Molecular Weight and Elemental Composition Calculator

Molar mass of (NH4)3PO4 is 149.0867 g/mol
Convert between (NH4)3PO4 weight and moles
 Compound Moles Weight, g (NH4)3PO4

Elemental composition of (NH4)3PO4
ElementSymbolAtomic weightAtomsMass percent
PhosphorusP30.973762120.7757
OxygenO15.9994442.9264
NitrogenN14.0067328.1850
HydrogenH1.00794128.1129

 Mass percent composition Atomic percent composition

Sample reactions for (NH4)3PO4
 Equation Reaction type (NH4)3PO4 + Ba(OH)2 = Ba3(PO4)2 + NH4OH double replacement (NH4)3PO4 + CaCl2 = Ca3(PO4)2 + NH4Cl double replacement Ba(C2H3O2)2 + (NH4)3PO4 = Ba3(PO4)2 + NH4C2H3O2 double replacement CuCl2 + (NH4)3PO4 = Cu3(PO4)2 + NH4Cl double replacement (NH4)3PO4 + Zn(NO3)2 = NH4NO3 + Zn3(PO4)2 double replacement

Formula in Hill system is H12N3O4P

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: C[14]O[16]2, S[34]O[16]2.

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.