What is the size of a mole in chemistry?

Answer 1

This information can be found out just with basic facts about silver. The two values we need are the Atomic Mass and the density: 107.9 grams/mol and 10.49 g/cm3.

First we need to figure out the mass of one mole of silver. Then we use this mass with the density to find out the volume (using the density formula: D = m/v). But the first part is already done - the weights on the Periodic Table are the weight of one mole (6.02 × 1023 atoms). So one mole of silver is 107.9 grams. Then we use density to find the volume:

D = m/v

10.49 g/cm3 = 107.9 g/v

v = 10.29 cm3

Answer 2

6.022 X 1023, also known as Avagadro's number (NA). The physical size of a mole depends on the matter that you are working with. A mole of calcium for example would be a whole lot smaller than a mole of shoes.

BY DEFINITION:

As of 2011, the mole is defined by IUPAC to be an amount of a substance that contains as many elementary entities(e.g., atoms, molecules, ions, electrons) as there are atoms in exactly 12 grams of pure carbon-12 (12C), the isotope of carbon with atomic mass number 12. Thus, by definition, one mole of pure 12C has a mass of exactly 12 g.

Since the definition of the gram is not (as of 2011) mathematically tied to that of the dalton, the number NA of molecules in a mole (Avogadro's number) must be determined experimentally.

The value adopted by CODATA in 2006 is NA = 6.02214179×1023 ± 0.00000030×1023.

In 2011 the measurement was refined to 6.02214078×1023 ± 0.00000018×1023.

Answer 3

A mole is 6.02 × 1023 atoms (in this case). The amount of moles cannot be determined in this question because no mass or amount has been given. A proper question will ask "How many moles are there in x grams of silver?".

Answer 4

A mole in chemistry is a unit used to represent a specific number of particles, which is equal to 6.022 x 10^23. This number is called Avogadro's number and represents a mole of any substance, whether atoms, molecules, ions, or any other particle.

Answer 5

9.268 moles.

Work:

Atomic mass of silver (Ag)=107.9 g/mol.

1 kilogram=1000 g

1000 g x 1 mol/107.9 g (cancel out the g to get mol as a unit) = 9.268 mol