Question

What is the atomic mass of ${\mathrm{SO}}_4$?

Answer 1

Step 1. Atomic mass

• Each element has its own atomic mass.
• The unit of atomic mass is u(unified mass).

Step 2. Calculation of Atomic mass of ${\mathrm{SO}}_4$

The atomic mass of ${\mathrm{SO}}_4$ can be calculated by taking separate atomic masses of each element

$$\begin{gathered} =\text{Atomic mass of S+4×Atomic mass of O} \\ =\left(32.06+4\times 16\right)\mathrm{u} \\ =96.06\mathrm{u} \end{gathered}$$

Hence, the atomic mass of ${\mathrm{SO}}_4$ is $96.06\text{u}$.