Calculate the number of unit cell in 0.5 g metal if the product of volume and density of unit cell is 6.65 10⁻²³ g

Step-by-step solution

Mass of one unit cell is given by the product of its volume and density. Mass of one unit cell = 6.65 10⁻²³ g Total mass of the metal = 0.5 g Number of unit cells = Total mass Mass of one unit cell Number of unit cells = 0.5 6.65 10⁻²³ Number of unit cells = 7.518 10²¹ Answer: 7.518 10²¹