Cinnabar, (or Cinnabarite) HgSHgS is the common ore of mercury.  Because of its mercury content, cinnabar can be tpxoc to human beings; however, because of its red color, it has also been used since ancient times as a pigment. Alchemists produced elemental mercury by roasting cinnabar ore in air: HgS(s)+O2(g) → Hg(l) + SO2(g)

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Chapter6: Thermochemisty
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Cinnabar, (or Cinnabarite) HgSHgS is the common ore of mercury.  Because of its mercury content, cinnabar can be tpxoc to human beings; however, because of its red color, it has also been used since ancient times as a pigment.

Alchemists produced elemental mercury by roasting cinnabar ore in air:

HgS(s)+O2(g) → Hg(l) + SO2(g)

The votality and toxicity of mercury make this a hazardous procedure, which likely shortened the life span of many alchemists. Given 100g of cinnabar,

a. How much elemtal mercury can be produced from this reaction?

b. How much oxygen is required to completely react with the given amount of cinnabar?

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