Take a standard chemistry formula for a molecule, split it up into the component atoms, and look up the molar weight of each atom. Real world, this can vary based on where the sample was collected - due to variances in the specific isotopes of theĮlements present (driven by differences in radioactive decay and how the material was aggregated to begin with). Since the two isotopes have a different atomic mass due to additional neutrons). This will vary by isotope of the element (carbon-12 vs. Mass of the sample is the weighted arithmetic mean of the masses of the individual atoms present in the sample (also The relative atomic mass of a compound is the ratio of the average mass of the elements in a chemical compound to theĪtomic mass constant, which is defined as 1/12 the mass of a carbon 12 atom. What Is Relative Atomic Mass / Relative Molecular Mass / Average Molecular Weight? By converting the atomic interaction into grams, we can measure and use an appropriate amount of the necessary reagents. To make a given quantity of water? Molar mass allows us to convert a chemical reaction into specific amounts of reagents required for the 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 We may be able to balance a chemical equationĪnd determine that one molecule of hydrogen combines with two of oxygen to make water (or the compound of your choice). Molar mass is an important concept in adapting chemical formulas to real world conditions. FAQ - Molar Mass Calculator What is Molar Mass in Chemistry? 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.Īgain - hit calculate first so the URL is updated with your most recent changes.
(Be sure to hit calculate first, however) It's easy share & save results via email. Opens up the URL, they will see your calculations. You can also share results with a study partner or tutor by hitting calculate and copying the URL for this page. We recommend you bookmark it so you can refer back to it. The tool is designed so you can flip between different parts of a problem set. Molar Mass of Aluminium monofluoride (AlF).Molar Mass of Magnesium Phosphate (Mg3(PO4)2).Molar Mass of chlorodifluoromethane (CHClF2).Molar Mass of Chloroacetic acid (C2H3O2Cl).Molar Mass of Potassium sulfite (K2SO3).Molar Mass of Silver phosphate (Ag3PO4).Molar Mass of Sodium metabisulfite (Na2S2O5).Molar Mass of Strontium sulfate (SrSO4).Molar Mass of Sodium hydrogen tartrate (NaHC4H4O6).Molar Mass of Chloroacetic acid (C2H3ClO2).Molar Mass of Carbonyl dichloride (COCl2).Molar Mass of Barium nitrate (Ba(NO3)3).Molar Mass of Ammonium bicarbonate ((NH4)HCO3).Our molar mass calculator has this for a variety of other compounds: sodium chloride,Ĭarbon dioxide, sulfuric acid, glucose. For example:įinding Molar Mass for Other Chemical Compounds Simply take each element and multiple it by the number of times the bracketed structure occurs. We don't have brackets implemented (yet), so you will need to unpack any bracketed expressions. It solves for total mass of a molecular formula (average molecular weight).įrom there we break the formula for ammonium chloride into parts -Ī Nitrogen atom, a Hydrogen atom, a Chlorine atom, etc. The molar mass calculator - it will show the count of atoms, the atomic weight of each element, and the molecular weight for the molecule. We present the results in a table at the bottom of Then weĬompare each atom against a table of the standard atomic weights for that element. We take the formula you provide (NaCl - common table salt - in our default example) and unpack it into the component elements. Other terms: atomic mass of ammonium chloride, molar mass of ammonium chloride, molecular mass, How Does The Molar Mass Calculator Work? Use the mole ratio and empirical formula to understand the limits of the reactants.
Percent yield calculator which can help you apply this to actual experiments.
This project started with as a molar mass calculator for chemical reactions.
Note that the calculator assumes a pure substance - if you'reĪware of dilution or impurities, make appropriate adjustments for the molarity of a given substance. The calculator takes the elemental composition of the compound and weighs the elements to get an The molar mass of a chemical compound based on the compound's empirical formula. Need to know the atomic mass of a ammonium chloride molecule? Our molar mass calculator uses the periodic table and the chemical formula to solve for Solving for the atomic mass of ammonium chloride (NH4Cl)