A method used by the U.S. Environmental Protection Agency (EPA) for determining the concentration of ozone in air is to pass the air sample through a "bubbler" containing sodium iodide, which removes the ozone according to the following equation:

(a) How many moles of sodium iodide are needed to remove 5.95 × 10-6 mol of O3?
(b) How many grams of sodium iodide are needed to remove 1.3 mg of O3?

Group 1A Group 2A Group 3A roup 6A Group 7A Be2+ 0.59 B3+ 0.41 0.90 1-34 0.90 0.82 0.73 0.71 A13+ 0.68 Cl 1.67 0.86 Mg 1.30 CI 0.99 18 Ca2+ 1.14 Ga3+ 0.76 152 1.82 1.96 1.24 1.26 116 Te 1.66 0,94 2.06 Rb 2.11 In 144 192 - cation - anionn neutral atom