1.- Calculate the density of Copper FCC, Copper Atomic Radio is 0.1280 nm and at

Question

1.-Calculate the density of Copper FCC, Copper Atomic Radio is 0.1280 nm and atomic mass 63.55 g / mol.

2.- 3.9 moles of solid MgO (atomic mass Mg 24.31 g / mol, atomic mass O 16.0 g / mol) occupies one volume in a 35.15 mm cube per side. Calculate the mass of a refractory brick with high temperature resistance 100 X 100 X 10 mm ( answer must be: 0.3620 kg.)

3.- Calculate the density of Vanadium BCC, Atomic diameter 0.264 x 10-9 m and 50.94 g mol^-1 of atomic mass. ( answer: 5974.0 kg/m3)

4.- Calculate the mass per atom and the mass per cell of the Nickel

Explanation / Answer

Ans 1

Atomic radius = 0.128 nm

Atomic weight = 63.5 g/mol

Atoms/unit cell = 4

Unit cell volume = 16R3/(2)0.5

Density = Atoms/unit cell x Atoms/unit cell / 16R3/(2)0.5 x NA

= 4 x 63.5 / 16*(1.28*10^-8)3*20.5 x 6.023 x 10^23

= 8.89 g/cm3

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.