Question

How many grams of Hg is present in 225 g of pure HgS? Molar mass of Hg and S are 200.6 g / mol and 32 g / mol respectively.

Answer 1

Answer:

Molecular mass of HgS is 200.6+32=232.6 gram. Hence moles present in given mass=225/232.6=0.94 grams.