Question

Cinnabar (HgS) is a prominent ore of mercury. How many grams of mercury are present in 225 g of pure HgS? Molar mass of Hg and S are 200.6 g mol–1 and 32 g mol–1 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.

Explanation:

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