- Formula = > Weight

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

C | 1 | Carbon | 6 | 12.011 | 12.011 |

Cl | 4 | Chlorine | 17 | 35.45 | 141.8 |

Total Mass | 153.811 |

153.811 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 Carbon Tetra Chloride 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 Carbon Tetra Chloride, molar mass of Carbon Tetra Chloride, 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 Carbon Tetra Chloride into parts - a Carbon atom, a Chlorine 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 Acetaldehyde (C2H4O)
- Molar Mass of Aluminum oxide (Al2O3)
- Molar Mass of Ascorbic acid (C6H8O6)
- Molar Mass of Bromthymol blue (C27H28Br2O5S)
- Molar Mass of Aniline (C6H5NH2)
- Molar Mass of sodium hydroxide (NaOH)
- Molar Mass of hydrogen sulfide (H2S)
- Molar Mass of potassium bromide (KBr)
- Molar Mass of titanium dioxide (TiO2)
- Molar Mass of acetominophen (C8H9NO2)
- Molar Mass of Sodium Phosphate (Na3PO4)
- Molar Mass of Phosphine (PH3)
- Molar Mass of Bismuth Chloride (BiCl3)
- Molar Mass of Dichloroacetic acid (C2H2Cl2O2)
- Molar Mass of Lithium Chloride (LiCl)
- Molar Mass of Nickel chloride (NiCl2)
- Molar Mass of Potassium dihydrogen phosphate (KH2PO4)
- Molar Mass of Resorcinol (C6H6O2)
- Molar Mass of Sodium dichromate (Na2Cr2O7)
- Molar Mass of Sodium sulfide (Na2S)
- Molar Mass of Tin Chloride - 4 (SnCl4)
- Molar Mass of Methyl ethyl ketone (CH3COC2H5)
- Molar Mass of Acetate (CH3COO)
- Molar Mass of Nitrous acid (HNO2)
- Molar Mass of Phenol (C6H6O)
- Molar Mass of Trichloroacetic acid (C2HCl3O2)
- Molar Mass of Acetonitrile (C2H3N)
- Molar Mass of Dimethyl sulfoxide (C2H6OS)
- Molar Mass of Calcium Iodide (CaI2)
- Molar Mass of Magnesium iodide (MgI2)
- Molar Mass of Ammonium nitrite (NH4NO2)
- Molar Mass of Aluminum fluoride (AlF3)
- Molar Mass of Nickel acetate (C4H6O4Ni)
- Molar Mass of silver bromite (AgBrO2)
- Molar Mass of Silver(II) fluoride (AgF2)
- Molar Mass of gold trifluoride (AuF3)
- Molar Mass of dichlorodifluoromethane (CCl2F2)
- Molar Mass of Cubane (C8H8)
- Molar Mass of Mercury (Hg)
- Molar Mass of Sulfur (S)
- Molar Mass of Calcium (Ca)
- Molar Mass of Phosphorus (P)
- Molar Mass of Heptane (C7H16)
- Molar Mass of Decane (C10H22)
- Molar Mass of Tetradecane (C14H30)
- Molar Mass of Nonadecane (C19H40)
- Molar Mass of Icosane (C20H42)
- Molar Mass of Pentacontane (C50H102)
- Molar Mass of Heptacontane (C70H142)
- Molar Mass of Cyclobutane (C4H8)
- Molar Mass of Cyclodecane (C10H20)
- Molar Mass of Iron Oxide (FeO)
- Molar Mass of Molecular Nitrogen (N2)
- Molar Mass of Phosphorus mononitride (PN)
- Molar Mass of Sulfur monohydride (SH)
- Molar Mass of Aluminium isocyanide (AlNC)
- Molar Mass of Disilicon carbide (SiCSi)
- Molar Mass of Tricarbon sulfide (C3S)
- Molar Mass of Thioformaldehyde (H2CS)
- Molar Mass of Isocyanogen (CNCN)
- Molar Mass of Butadiynyl (C4H)
- Molar Mass of Cyanoacetylene (HC3N)
- Molar Mass of Sodium amide (NaNH2)
- Molar Mass of Fluorosulfuric acid (HSO3F)

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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