In order to calculate the object's mass, we can use the formula for the weight:
[tex]\text{weight}=\text{mass}\cdot\text{gravity}[/tex]Using the gravity acceleration equal to 9.8 m/s², we have:
[tex]\begin{gathered} 22=\text{mass}\cdot9.8 \\ \text{mass}=\frac{22}{9.8} \\ \text{mass}=2.245\text{ kg} \end{gathered}[/tex]