Question

what is the mass and no.of molecules of 18000 cm³ of H2S​

Answer 1

Explanation:

18000 cm3 H2S x 1 L/1000 cm3 x 1 mol/22.4 L = 0.804 moles of H2S 0.804 moles x 6.02x10^ 23 molecules/mole = 4.8x10^23 molecules.