Nickel carbonyl, Ni1CO24, is one of the most toxic substancesknown. The present maximum allowable concentrationin laboratory air during an 8-hr workday is 1 ppb(parts per billion) by volume, which means that there isone mole of Ni1CO24 for every 109 moles of gas. Assume24 °C and 1.00 atm pressure. What mass of Ni1CO24 is allowablein a laboratory room that is 12 ft * 20 ft * 9 ft?

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