Any chemistry buffs out there? I have a question about moles?

Question

i think its pretty easy, but i can't seem to figure it out... here it is:

If a mole is defined as the number of H atoms in 1 g of hydrogen, how many H atoms are there in a mole?

Answer 1

A mole is defined as the number of Carbon 12 atoms in 12 grams of carbon, which equals 6.22x10^23
or in other words 622000000000000000000000 atoms and hydrogens atomic mass is 1.007 g/mol and therefore it means there are 6.22x10^23 atoms

Answer 2

A mole is simply Avogrado's number of something.

The concept of a mole is similar to that of a dozen.
A dozen eggs is 12 eggs. A dozen books is 12 books.

Similarly, a mole of anything is 6.02x10^23 of that thing.

The current, precise definition of a mole is the amount of any substance that contains the same number of chemical particles as there are atoms in exactly 12g of C-12.

You may not have a practical idea of what 12g of C-12 is, so here's an illustration. An 8 ounce glass of water has about 13.1 moles of water molecules.

Answer 3

If you are referring to a mole of hygrogen gas, then there would be 2 moles of H atoms in every mole of H2 because hydrogen is diatomic. So there are
2 x 6.02 x 10^23 atoms of hydrogen for every 1 mole of gas. Convert mass to moles first.

? H atoms =
[1g H] x [(1 mole H2)/(2.02 g H)] x
[(6.02 x 10^23 molecules H2)/(1 mole H2)] x
[( 2 atoms H)/(1 molecule H2)] =
5.96 x 10^23 atoms hydrogen.

Elements ending in "ine" and "gen" exist as diatomic molecules in their natural states.

Answer 4

1 mole of something is 6.02214 x 10^23 of those things, whether they're H atoms or anything else.

Answer 5

Avagadro's # 6.022 *10^23

Answer 6

It's been a loong time, but I think the answer is Avagadro's number...6.83x10^23

Answer 7

uhmm...first, you need to find the molar mass. then do the mass (1g) divided by the MM of Hydrogen.

good luck