the cut pieces will have their own north and south pole
Answer:
The ratio of the number of atoms of gold and silver in the ornament is 197 : 1080.
Explanation:
Let the mass of silver ornament be x.
Mass of gold polished on an ornament = 1% of x= 0.1 x
Moles of silver =
Number of atoms = 
Where :
= Avogadro number
Moles of gold =
Silver atoms =
Gold atoms =
The ratio of the number of atoms of gold and silver in the ornament:

= 197 : 1080
Answer: There are
moles
present in
particles.
Explanation:
According to the mole concept, 1 mole of a substance contains
particles.
Hence, number of moles present in
particles are calculated as follows.
No. of moles =
mol
=
mol
Thus, there are
moles
present in
particles.
need 0.500 x 0.125 = 0.0625 moles of NaOH. The molecular weight is 23+16+1 = 40, so 0.0625 x 40 = 2.5 grams will do the trick.