Nickel carbonyl, Ni(CO)4, is one of the most toxic sub-stances known. The present maximum allowable con-centration in laboratory air during an 8-hr workday is 1 part in 109 parts by volume, which means that there is one mole of Ni(CO)4 for every 109 moles of gas. Assume 24 °C and 1.00 atm pressure. What mass of Ni(CO)4 is allowable in a laboratory that is 54 m2 in area, with a ceiling height of 3.1 m?
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