What is the density of silicon, magnesuim, oxygen, nitrogen, clorine, sodium, potassium?
Answer:
Si : d = 2.33 g/cm^3
Mg : d = 1.738 g /cm^3
Na : d = 0.927 g/cm^3
K : d = 0.89 g/cm^3
The density of O , N and Cl is determined at fixed temperature and pressure
O : d at =0°C and 101.325 kPa = 1.429 g/L
N : d in the same conditions = 1.251 g/L
Cl : d in the same conditions = 3.2 g/L
Look them up on wikipedia lazy bones!
Solid densities are compared to water.
Gas densities are compared to air.
Si Mol.mass = 56. Divide by the Mol.mass of water = 18
= 56/18 = 3.11 S.G. x 1g/cc = 3.11g/cc.
Mg Mol.mass = 48.= 48/18 = 2.67 = 2.67g/cc
Na Mol.mass = 46..46/18 = 2.56 = 2.56g/cc
K Mol.mass = 78...78/18 = 4.33 = 4.33g/cc
O2 Mol.mass = 32. Divide by Mol.mass of air = 29
32/29 = 1.103 S.G. x Density of air 1.29kg/m³ = 1.4kg/m³.
N2 Mol.mass = 28..28/29 = 0.966 x 1.29kg/m³ = 1.25kg/m³
Cl2 Mol.mass = 71..71/29 = 2.45 x 1.29 = 3.16kg/m³
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