Step-by-step explanation:
The given data is as follows.
density = 2.70 g, volume = 348 ml
It is known that density is mass divided by volume.
Mathematically, Density =
![(mass)/(volume)](https://img.qammunity.org/2019/formulas/chemistry/college/mz31oe5fu3uakup7ay90a77xrxcdpiyp6e.png)
Hence, putting the given values into the above formula and calculate the mass as follows.
Density =
![(mass)/(volume)](https://img.qammunity.org/2019/formulas/chemistry/college/mz31oe5fu3uakup7ay90a77xrxcdpiyp6e.png)
2.70 g/ml =
![(mass)/(348 ml)](https://img.qammunity.org/2019/formulas/chemistry/college/5eq0azff00bd3b94k8vy7va063dyy6pkc0.png)
= 939.6 g
Therefore, mass of given piece of aluminium is 939.6 g.