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

Molar mass of (NH4)2CrO4 is 152.0706 g/mol
Compound name is ammonium chromate

Convert between (NH4)2CrO4 weight and moles
 Compound Moles Weight, g (NH4)2CrO4

Elemental composition of (NH4)2CrO4
ElementSymbolAtomic weightAtomsMass percent
ChromiumCr51.9961134.1921
OxygenO15.9994442.0841
NitrogenN14.0067218.4213
HydrogenH1.0079485.3025

 Mass percent composition Atomic percent composition

Sample reactions for (NH4)2CrO4
 Equation Reaction type AgNO3 + (NH4)2CrO4 = Ag2CrO4 + NH4NO3 double replacement KNO3 + (NH4)2CrO4 = K2CrO4 + NH4NO3 double replacement Ba(NO3)2 + (NH4)2CrO4 = BaCrO4 + NH4NO3 double replacement

Formula in Hill system is CrH8N2O4

### Computing molar mass (molar weight)

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• 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.
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• parantesis () or brackets [].
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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.