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April 16, 2014

Homework Help: Chemistry

Posted by Hay on Monday, August 19, 2013 at 9:50pm.

A student breaks a thermometer and spills most of the mercury (Hg) onto the floor of a laboratory that measures 15.2 m long, 6.6 m wide, and 2.4 m high.
(a) Calculate the mass of mercury vapor (in grams) in the room at 20C. The vapor pressure of mercury at 20C is 1.7 106 atm.
(b) Does the concentration of mercury vapor exceed the air quality regulation of 0.050 mg Hg/m3 of air?
(c) One way to treat small quantities of spilled mercury is to spray sulfur powder over the metal. Suggest a physical reason for this action.

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