There are 6.02x10^22 molecules of any atom/molecule in one mole of anything.
Therefore no. of atoms in 3.8 mols of Mercury= 3.8 * 6.02x10^22= 2.2876x10^23 atoms
Given data:
Diameter of the gold wire (d) = 0.175 cm
Length of the gold wire (l) = 1.00 * cm
Volume of the given gold wire = volume occupied by a cylindrical object\
= π * *l
here r = radius of the cross section
where : r = d/2
Hence the volume V = π * *l
=
Density of gold = 19.3 g/cm3
Weight of the gold wire = Density * volume
= *
=
i think it is carbon monoxide
Answer:
Iron ore, coke and lime stone are some raw materials used for extracting iron.
Hope it helps! :)
Nitrogen atomic no.=7
electron=7its electronic configuration =1s2 2s2 2p3