Answer to Question #264064 in General Chemistry for Bato

Question

A mole of a newly discovered crystalline substance weighs 14.56 grams and displaces 2.3 ml of water. What is the density of the crystal? Find the atomic radius and density of each atom if it is a simple cubic cell? BCC? FCC? HCP?

Answer 1

2.3 ml of water occupy volume 2.3 cm³

So, one mole of a newly discovered crystalline substance occupies 2.3 cm³

The density of the crystal $= \frac{m}{V} = \frac{14.56}{2.3} = 6.33 \;g/cm^3$