Answer:
50 g.
Explanation:
To obtain the mass of 10 cm³ sample of pyrite, we must first obtain the density of the sample of pyrite.
Since the sample is composed of same material, then the density of each sample will be the same.
Thus, we can obtain the density by using any of the sample as follow:
Mass = 12.5 g
Volume = 2.5 cm³
Density =?
Density = mass /volume
Density = 12.5 / 2.5
Density = 5 g/cm³
Finally, we shall determine the mass of 10 cm³ sample of pyrite as follow:
Density = 5 g/cm³
Volume = 10 cm³
Mass =?
Density = mass /volume
5 = mass /10
Cross multiply
Mass = 5 × 10
Mass = 50 g
Therefore, the mass of 10 cm³ sample of pyrite is 50 g.
