While Mercury Is Very Useful in Barometers,mercury Vapor Is Toxic

question 30

Multiple Choice

While mercury is very useful in barometers,mercury vapor is toxic.Given that mercury has a ΔH_vap of 59.11 kJ/mol and its normal boiling point is 356.7°C,calculate the vapor pressure in mm Hg at room temperature,25°C.

• A)2.68 × 10^-3 mm Hg
• B)2.99 mm Hg
• C)372 mm Hg
• D)753 mm Hg

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