Question

Calculate the number of molecules in 9.00 moles H2S.

Answer 1

Answer:

5.42 x 10²⁴

Explanation:

There is a number called Avogrado's constant, and this constant is:

6.022 x 10²³

The reason that this number is so important in chemistry calculations, is that it is the exact number of atoms in a mole of that substance.

Calculations:

No. of molecules = (Avogrado's constant) x n  (where n is the moles)

No. of molecules = (6.022 x 10²³) x (9 moles)

No. of molecules = 5.42 x 10²⁴

Answer 2

1 mole of any substance is: 6.022*10²³ atoms or molecules.
9 moles of H₂S=9(6.022*10²³ molecules)=5.4198*10²⁴ molecules.

answer:there are 5.4198*10²⁴ molecules in 9.00 moles of H₂S.