Browse Questions

# Ice crystallizes in a hexagonal lattice. At the low temperature at which the structure was determined, the lattice constants were $a = 4.35 A^{\large\circ}$, and b = 7.00 $A^{\large\circ}$. How many molecules are contained in a unit cell? [density (ice) = $0.92 gm/cm^3$)

4 molecules of $H_2O$