Final answer:
The density of the stone is 3.103 g/ml.
Step-by-step explanation:
The density of an object is calculated by dividing its mass by its volume. In this case, the mass of the stone is 4.50 g and the volume is 1.45 ml.
To find the density in g/ml, divide the mass (4.50 g) by the volume (1.45 ml):
Density = Mass / Volume
Density = 4.50 g / 1.45 ml = 3.103 g/ml
Therefore, the stone's density is 3.103 g/ml.