Molar Mass Calculator

Top
**Molar Mass Calculator **or Molecular Weight Calculator is used to calculate the **Molar Mass** or **Molecular Weight** of the given chemical formula. The term **Molar Mass** is used all the time in chemical calculations, so we need to know what it means. First it is a mass so it has units of mass commonly the gram. Second it concerns the mole (Avagadro's number), Whether we are dealing with elements or compounds, the **Molar Mass** of a species is the mass in grams of one mole (6.022 x 10^{23}) of that species: one mole of atoms, one mole of molecules or one mole of formula units.

Two important facts to remember

1. One mole of an element is 6.022 x 10^{23} atoms of that element.

2. One mole of an element is an amount of that element equal to its molar mass (an amount equal to its atomic mass in grams).**We know that 1 mole of any element = 1 molar mass of that element = 6.022 x 10**^{23} atoms of that element. So molar mass of any element = the atomic mass of that element in grams.Below is given a default chemical formula you can just see how the molar mass is calculate using the calculator.

**Step 1 :**

**Step 2 :**

Two important facts to remember

1. One mole of an element is 6.022 x 10

2. One mole of an element is an amount of that element equal to its molar mass (an amount equal to its atomic mass in grams).

Observe the given chemical formula.

Add the atomic mass of individual element in order to get molar mass of the given compound.

Calculate the Molar Mass of NaCl?

**Step 1 :**Given Chemical Formula: NaCl

**Step 2 :**For the element Na(Sodium)

Atomic mass of 1 atom of sodium = 22.989768

For the element Cl(Chlorine)

Atomic mass of 1 atom of chlorine = 35.4527

So, the Molar Mass = The molar mass of one atom of sodium + The molar mass of one atom of chlorine

Molar Mass = 22.989768 + 35.4527

Molar Mass = 58.442468

**Answer :**Molar Mass of NaCl = 58.442468

Calculate the Molar Mass of FeCl

_{2}?**Step 1 :**Given Chemical Formula: FeCl

_{2}**Step 2 :**For the element Fe(Iron)

Atomic mass of 1 atom of iron = 55.847

For the element Cl(Chlorine)

Atomic mass of 2 atom of chlorine = 2(35.4527) = 70.9054

So, the Molar Mass = The molar mass of one atom of iron + The molar mass of two atom of chlorine

Molar Mass = 55.847 + 70.9054

Molar Mass = 126.7524

**Answer :**Molar Mass of FeCl

_{2}(Iron(II) Chloride) = 126.7524

More Molar Mass Calculator | |

Molar Mass of a Gas Calculator | Molar Volume Calculator |