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25. 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.

25. 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.

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 6228 Points
2 months ago
Molar mass of HgS = 200.6 + 32 = 232.6 g mol–1 Mass of Hg in 232.6 g of HgS = 200.6 g Mass of Hg in 225 g of HgS = 200.6 # 225 = 194.04 g

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