Question

Determine the mass of magnesium in a beaker if the mass of the beaker is 1.86 g and the mass of the magnesium and beaker is 2.85 g to two decimal places.

Answer 1

To calculate the mass of magnesium we must subtract the weight of the beaker and the magnesium minus the weight of the beaker, we do it as follows:

`\begin{gathered} \text{Weight of Magnesium =}(\text{Weight of the beaker + Magnesium)}-(\text{Weight of the beaker )} \\ \text{Weight of Magnesium }=2.85g-1.86g \\ \text{Weight of Magnesium }=0.99g \end{gathered}`

So, the weight of Magnesium is 0.99g