Exact Mass Calculator

Formula

The formula to calculate the Exact Mass (EM) is:

\[ EM = A \times MM \]

Where:

\(EM\) is the Exact Mass (AMU)
\(A\) is the total number of atoms of the molecule (atoms)
\(MM\) is the mass per molecule (AMU)

What is Exact Mass?

Exact mass is the total mass of a molecule calculated by multiplying the number of atoms in the molecule by the mass of each molecule. This is often used in chemistry to determine the precise mass of a compound.

Example Calculations

Let's assume the following values for two examples:

Example 1:

Total Number of Atoms (A) = 10
Mass per Molecule (MM) = 12 AMU

Using the formula:

\[ EM = 10 \times 12 = 120 \, \text{AMU} \]

The Exact Mass is 120 AMU.

Example 2:

Total Number of Atoms (A) = 5
Mass per Molecule (MM) = 20 AMU

Using the formula:

\[ EM = 5 \times 20 = 100 \, \text{AMU} \]

The Exact Mass is 100 AMU.