Na2*SO4 (Sodium Sulfate) Molar Mass

Na2*SO4 (Sodium Sulfate) Molar Mass

Molecular Weight of Na2·SO4

142.0421 g/mol

The molar mass and molecular weight of Na2·SO4 is 142.042.

Convert Na2*SO4 Moles to Grams

Moles mol

Convert Na2*SO4 Grams to Moles

Weight g

Composition of Sodium Sulfate - Na2·SO4

Element Symbol Atomic Mass # of Atoms Mass Percent
Sodium Na 45.9795 g/mol 2 32.3704%
Sulphur/Sulfur S 32.065 g/mol 1 22.5743%
Oxygen O 63.9976 g/mol 4 45.0554%
Element - Mass PercentOxygen63.9976gOxygen63.9976gSodium45.9795gSodium45.9795gSulphur/Sulfur32.065gSulphur/Sulfur32.065g

Instructions

This program determines the molecular mass of a substance. Enter the molecular formula of the substance. It will calculate the total mass along with the elemental composition and mass of each element in the compound.

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Examples

Finding Molar Mass

Read our article on how to calculate molar mass.

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Steps to Find the Molar Mass of Na2·SO4

There are 4 easy steps to finding the molar mass of Na2*SO4 based on its chemical formula.

1. Count The Number of Each Atom

The first step to finding the molar mass is to count the number of each atom present in a single molecule using the chemical formula, Na2*SO4:
Atoms
Na (Sodium)2
S (Sulphur/Sulfur)1
O (Oxygen)4

2. Find Atomic Mass of Each Element

Next, using the periodic table, find the atomic mass in g/mol of each element:
Atomic Mass (g/mol)
Na (Sodium)22.98976928
S (Sulphur/Sulfur)32.065
O (Oxygen)15.9994

3. Compute Mass of Each Element

Multiply the number of atoms by the atomic weight of each element found in steps 1 and 2 to get the mass of each element:
Mass (g/mol)
Na (Sodium)2 × 22.98976928 = 45.97953856
S (Sulphur/Sulfur)1 × 32.065 = 32.065
O (Oxygen)4 × 15.9994 = 63.9976

4. Sum Each Element's Mass

Finally, add together the total mass of each element to get the molar mass of the molecule:
45.97953856 g/mol + 32.065 g/mol + 63.9976 g/mol = 142.04213856 g/mol