Question

how many atoms of H and S are preset in 0.8 mole of H2S???????​

Answer 1

There is one atom of sulfur per molecule, and two atoms of hydrogen per molecule.

If you want to find out how many there are, know that the number of things in one mole of those things equals the . Work out how many molecules there would therefore be in 0.8mol. That will give you the number of atoms of sulfur. To work out the number of atoms of hydrogen, multiply that result by 2.

hope it helps you