What is the relationship between Avogadro's number and mole?

Answer 1

The mole is the atomic weight expressed in grams.

Answer 2

The gram atom is the old measure for the quantity of a specific element whose weight was equal to the atomic weight of that element. It has been replaced by the molar weight, which is essentially the same.

Answer 3

They are related through the molecular weight. For example, water consists of one oxygen (atomic weight 16), and two hydrogen (atomic weight 1 each, total 2), so it has a total weight - mass, really - of 18 units for each molecule. (This assumes the standard isotopes.) A mole of this water has a mass of 18 gramms.

A mole of some other substance, with a molecular weight of 100, would have a mass of 100 gramms.

The general idea is that a mole of any substance always has the same number of particles. Instead of saying "combine 2 molecules of hydrogen (H2) with one molecule of oxygen (O2), to obtain two molecules of water (H2O)", the chemist would say, "combine 2 moles of H2 with one mole of O2, to obtain two moles of H2O". The point is that individual atoms are difficult to weight, count, etc.; the chemist works with larger amounts of substances.

Answer 4

the mole is Avogadro's number (N = 6.022 x 1023 ) of particles of whatever substance you are measuring.

If exactly one mole of the substance is weighed the mass would be the atomic number in grams.

one mole of carbon would weigh 12g

Since a mole is only dependent on number of particles and not individual atoms then:

One mole of Sucrose (C12H22O11) would weigh 342.3 g

Answer 5

One mole of anything substance contains Avogadro's number (6.02x10^23) of particles. Thus, one mole of any element contains 6.02x10^23 atoms; one mole of any compound contains 6.02x10^23 molecules, etc. It is similar to a dozen. One dozen bricks has 12 bricks. One dozen dimes has 12 dimes, etc.

Answer 6

1amu=1.66 * 10-24 grams

Answer 7

What is the molar mass of Fe(NO3)2