How many dozens of silver atoms are in the piece of jewelry?

If a piece of silver jewelry contains 5.13x10^22 atoms of silver (Ag). How many dozens of silver atoms are in the piece of jewelry?

• 0.4275x10^22.

• The number of dozens of atoms of Silver in jewelry is determined by the atomic mass of silver and the number of grams of silver in your jewelry.

Silver has an atomic mass of 107.8682. This means that if you have one "mole" of silver atoms, they will have a mass of 107.8682 grams. One mole of atoms is equal to 6.022 x 10^23.

Say your the portion of your jewelry that is made of silver is 23 grams. This is a fraction of a mole since it is less than 107.8682 grams. Simply work out the equation

atoms = 23.0 grams / 107.8682 grams * 6.022 x 10^23 atoms = 1.28 x 10^23 atoms.

As you asked how many dozens of atoms, just divide by 12 to get your answer of 1.07 x 10^22 dozen.

Wow that is a lot of atom dozens !

Source(s): Here is the atomic mass of Silver http://www.chemicalelements.com/elements/ag.html
Here is the definition of a "mole" http://en.wikipedia.org/wiki/Mole_%28unit%29