- 1 How to calculate the molar mass
- 2 molar mass
- 3 Examples of molar mass account 3.1 molar mass of the elements 3.2 molar mass of molecules 3.3 molar mass compounds
- 3.1 molar mass of the elements
- 3.2 molar mass of molecules
- 3.3 molar mass compounds
- 4 References
How to calculate the molar mass
The molar mass account, or block one mole of any element or molecule by following these steps: 
- Find the atomic mass of each element through the use of atomic masses in the periodic table, or in the atomic weights table.
- Multiplying the number of atoms of the element in the atomic mass for him.
- Collection of atomic masses of the elements in the molecule to obtain molecular mass in the case of molecules.
Molar mass is a unit to calculate the weight of any chemical substance, whether an element or a compound, which is the sum of all atomic masses in the chemical formula,  as they block the mall one of the sample, and is expressed in molar mass unit pg / Mall. 
Examples of molar mass account
Molar mass of the elements
Can molar mass account for sodium element (Na) by found directly from the periodic table, which is equal to one mole of sodium, ie 22.99 g / mol, as can the molar mass of the oxygen account (O2) by finding a block mall and one of it, and as the oxygen It is a divalent molecule, and the atomic weight is 16.00 grams has the molar mass = 2 * 16.00 = 32.00 g / mol. 
Molar mass of molecules
Can the molar mass of the water account (H2O) by atomic mass collection of elements in a molecule of water to get the molecular mass as follows: 16.00 * 1 (oxygen) 1.008 * 2 (hydrogen) = 18.02 g / mol. 
Molar mass of vehicles
The molar mass account for a compound of sodium carbonate as follows: 
- Use the chemical formula of a compound of sodium carbonate, which is (Na2CO3) to determine the number of atoms of each element present therein.
- Find the product of the molar mass of each element with the number of female relative in the compound as follows: (2 * 23.0 sodium), and (1 * 12.0 carbon), and (3 * 16.0 oxygen).
- Collection of atomic masses of the elements to find the molar mass of the compound, which is equal to 46.0+ 12.0+ 48.0 = 106 g / mol.
- ^ أ ب ت Anne Marie Helmenstine, Ph.D. (5-2-2018), "Molar Mass Example Problem"، www.thoughtco.com, Retrieved 31-3-2018. Edited.
- ↑ "Definition of molar mass", www.chemistry-dictionary.com, Retrieved 31-1-2018. Edited.
- ↑ " Computing molar mass (molar weight)", www.webqc.org, Retrieved 31-3-2018. Edited.
- ↑ "Stoichiometry Tutorial Finding Molar Mass", www.occc.edu, Retrieved 31-3-2018. Edited.
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