- Formula = > Weight

Symbol | # Atoms | Name | Atomic # | Molar Mass | Total Mass |
---|---|---|---|---|---|

Ag | 2 | Silver | 47 | 107.8682 | 215.7364 |

S | 1 | Sulfur | 16 | 32.06 | 32.06 |

O | 4 | Oxygen | 8 | 15.999 | 63.996 |

Total Mass | 311.7924 |

311.7924 grams/mol.

See also our theoretical yield calculator for chemical reactions (probably your next stop to finish the problem set).

Need to know the atomic mass of a Silver sulfate molecule? Our molar mass calculator uses the periodic table and the chemical formula to solve for the molar mass of a chemical compound based on the compound's empirical formula. The calculator takes the elemental composition of the compound and weighs the elements to get an empirical formula mass. Note that the calculator assumes a pure substance - if you're aware of dilution or impurities, make appropriate adjustments for the molarity of a given substance.

This project started with as a molar mass calculator for chemical reactions. You can use our calculator to solve for the theoretical yield of an experiment. We also have a percent yield calculator which can help you apply this to actual experiments. Use the mole ratio and empirical formula to understand the limits of the reactants.

Other terms: atomic mass of Silver sulfate, molar mass of Silver sulfate, molecular mass,

We take the formula you provide (NaCl - common table salt - in our default example) and unpack it into the component elements. Then we compare each atom against a table of the standard atomic weights for that element. We present the results in a table at the bottom of the molar mass calculator - it will show the count of atoms, the atomic weight of each element, and the molecular weight for the molecule. It solves for total mass of a molecular formula (average molecular weight).

From there we break the formula for Silver sulfate into parts - a Silver atom, a Sulfur atom, a Oxygen atom, etc.

We don't have brackets implemented (yet), so you will need to unpack any bracketed expressions. They don't affect the weight anyhow.
Simply take each element and multiple it by the number of times the bracketed structure occurs. For example:
(C_{6}H_{5})_{3}PCCO => C18H15PCCO

Our molar mass calculator has this for a variety of other compounds: sodium chloride, carbon dioxide, sulfuric acid, glucose...

- Molar Mass of Acetic acid (C2H4O2)
- Molar Mass of Aluminum nitrate (AI(NO3)3)
- Molar Mass of Ammonium sulfate ((NH4)2SO4)
- Molar Mass of Boric acid (H3BO3)
- Molar Mass of Sodium hypochlorite (NaClO)
- Molar Mass of caustic potash (KOH)
- Molar Mass of hydrofluoric acid (HF)
- Molar Mass of potash (K2CO3)
- Molar Mass of silver bromide (AgBr)
- Molar Mass of formaldahyde (CH2O)
- Molar Mass of toluene (C7H8)
- Molar Mass of Potassium Nitrate (KNO3)
- Molar Mass of Ozone (O3)
- Molar Mass of antimony chloride - 5 (SbCl5)
- Molar Mass of Chromium chloride - 3 (CrCl3)
- Molar Mass of Lead Chloride (PbCl2)
- Molar Mass of Methyl acetate (C3H6O2)
- Molar Mass of Potassium dichromate (K2Cr2O7)
- Molar Mass of Pyridine (C5H5N)
- Molar Mass of Sodium citrate (Na3C6H5O7)
- Molar Mass of Sodium sulfate (Na2SO4)
- Molar Mass of Tin Chloride - 2 (SnCl2)
- Molar Mass of Potassium hydrogen tartrate (KHC4H4O6)
- Molar Mass of Carbonic Acid (H2CO3)
- Molar Mass of Chlorine (Cl2)
- Molar Mass of Methylene blue (C16H18ClN3S)
- Molar Mass of Stearic acid (C18H36O2)
- Molar Mass of Chromic acid (H2CrO4)
- Molar Mass of Sodium fluoride (NaF)
- Molar Mass of Nitrogen monoxide (NO)
- Molar Mass of Ammonium iodide (NH4I)
- Molar Mass of Urea (CH4N2O)
- Molar Mass of Sodium Percarbonate (C2H6Na4O12)
- Molar Mass of silver hypobromite (AgBrO)
- Molar Mass of silver fluoride (AgF)
- Molar Mass of gold trichloride (AuCl3)
- Molar Mass of boron arsenide (BAs)
- Molar Mass of Isatin (C8H5NO2)
- Molar Mass of Propanamide (C3H7NO)
- Molar Mass of Zinc (ZN)
- Molar Mass of Ethane (C2H6)
- Molar Mass of Potassium hydrogen phthalate (C8H5KO4)
- Molar Mass of Dodecane (C12H26)
- Molar Mass of Hexacontane (C60H122)
- Molar Mass of Cyclopentane (C5H10)
- Molar Mass of Cyclooctane (C8H16)
- Molar Mass of Phosphorus monoxide (PO)
- Molar Mass of Silicon monosulfide (SiS)
- Molar Mass of Calcium isocyanide (CaNC)
- Molar Mass of Cyanoethynyl (C3N)
- Molar Mass of Tricarbon monoxide (C3O)
- Molar Mass of Aminocarbyne (H2NC)
- Molar Mass of Fulminic acid (HCNO)
- Molar Mass of Sodium Hydride (NaH)
- Molar Mass of Fluoroantimonic acid (HSbF6)
- Molar Mass of Aniline (C6H5NH2.)
- Molar Mass of Nitrobenzene (C6H5NO2)

The tool is designed so you can flip between different parts of a problem set. **We recommend you bookmark it so you can refer back to it**.
You can also **share results with a study partner or tutor** by hitting calculate and copying the URL for this page. When your study partner
opens up the URL, they will see your calculations. It's easy share & save results via email. (Be sure to hit calculate first, however)

You also have the option of saving links to the calculations in your research notes files, so you can quickly re-open or check them later. Again - hit calculate first so the URL is updated with your most recent changes. Then copy and save the url.

Molar mass is an important concept in adapting chemical formulas to real world conditions. We may be able to balance a chemical equation and determine that one molecule of hydrogen combines with two of oxygen to make water (or the compound of your choice). But how would you set up the materials in the laboratory? Or if you were, for example, buying oxygen for a process, how would you determine how much to use to make a given quantity of water? Molar mass allows us to convert a chemical reaction into specific amounts of reagents required for the process. By converting the atomic interaction into grams, we can measure and use an appropriate amount of the necessary reagents. Formula mass helps us solve for this.

What Is Relative Atomic Mass / Relative Molecular Mass / Average Molecular Weight?

The relative atomic mass of a compound is the ratio of the average mass of the elements in a chemical compound to the atomic mass constant, which is defined as 1/12 the mass of a carbon 12 atom. For a single sample, the relative atomic mass of the sample is the weighted arithmetic mean of the masses of the individual atoms present in the sample (also known as the average atomic mass). This will vary by isotope of the element (carbon-12 vs. carbon-13, for example, since the two isotopes have a different atomic mass due to additional neutrons). In the real world, this can vary based on where the sample was collected - due to variances in the specific isotopes of the elements present (driven by differences in radioactive decay and how the material was aggregated to begin with).

Take a standard chemistry formula for a molecule, split it up into the component atoms, and look up the molar weight of each atom. Add the weight of the atoms in the molecule and you have the molar mass for the molecule.

Chemistry: Percent Yield Calculator Theoretical Yield Calculator, Molar Mass Calculator

Analysis: Interpolation Coefficient of Variation, Quadratic Formula

Algebra: GCD Calculator, LCM Calculator, Factorial Calculator, Factor An Integer, Perfect Numbers

Other: Weighted Grade Calculator, Weighted Average Calculator, Modulo Calculator, Arithmetic Sequence, Geometric Sequence, Fibonacci Sequence Z Score Calculator,

Content: theoretical yield calculator
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