First we need to know the density of that material. Eg the density of 20mm is 1528 kg/cum : 1528/35.28 = 43.31 kg/cft. Lets asume that wee have 500 kg 20 mm. So 20mm (kg to cft) 500/1528 = 0.327 cum(multiply by 35.28 becoz it is in cum) 0.327*35.28 = 11.53 Cu ft.
So 500 kg of 20mm = 11.53 cu ft
5.00 kg of Cu is equivalent to 78,68 moles.
1 kg = 1000 g. You now have all the information required to answer your question.
Cu represents the chemical element copper. Its chemical symbol comes from the Latin word "cuprum." The chemical formula for copper is Cu.
The formula for aqueous copper nitrate is Cu(NO3)2.
To find density, use the formula Density = Mass/Volume. Convert mass of 155 pounds to kg by dividing by 2.205 (1 kg = 2.205 pounds). Therefore, 155 pounds = 70.31 kg. Next, divide the mass by the volume (70.31 kg / 4.2 ft^3) to find the density. The density is approximately 16.74 kg/ft^3.