Question

How many molecules are present in 1g of hydrogen?

Answer 1

Answer:

3.011 x 10^23 molecules

Explanation:

Here molecular weight of Hydrogen (h2) is 2 g , that is also equal to 1 mole of hydrogen

1 mole of any substance contains avagadro no.of molecules

It means , 2 g of hydrogen ----- 6.022 x 10^23 molecules

                1 g of hydrogen ------  ?

  = 6.022 x 10^23 x 1 / 2 = 6.022 x 10^23 x 0.5

  = 3.011 x 10 ^23 molecules

Hope this helps You !!!

Answer 2

Answer:

Because the molecular mass of Hydrogen is 1 gram/mole, there is 1 mole of hydrogen in 1 gram of hydrogen atoms.For every mole, there are 6.02*10^23 atoms so in 1 gram of hydrogen there are 6.02*10^23 hydrogen atoms (in scientific notation) this is equal to 602000000000000000000000 hydrogen atoms.