Question about Moles - Chemistry?

Using the Avogadro Number (6.022 x 10^23)

So in 1 mole of H atoms there are 6.022 x 10^23 atoms

Similarly for NH3 there are 6.022 x 10 ^23 molecules in 1 mole

Number 'H' atoms in one molecule of NH3 is '3'.

The number of 'H' atoms in 1 mole of NH3 is

6.022 x 10^23 x 3 = 18.066 x 10^23 atoms = 1.8066 x 10^24

1.5 times

Because 0.5N2 + 1.5H2 = NH3

NB Chemists don't normally show molar ratios in fractional/decimal amounts, but in whole numbers. This is just done to demonstrate.

1 mol = 6.022 x 10^23

1) So a mol of H atoms = 6.022 x 10^23 H atoms

2) A mol of NH3 molecules = 6.022 x 10^23 NH3 molecules

3) There are 3 H atoms per NH3 molecule.

4) 3 * 6.022 x 10^23

5) 3 moles

1 mole equals 6.02 x 10 23 anythings.

If you have H atoms in NH3 just multiply 6.02x10 23 by 3.

Your answers should be :

6.02 x 10 23

6.02 x 10 23

3 atoms

1.8 x 10 24

3 moles.