lodine is prepared both in the laboratory and commercially by adding Cl,CE) to an aqueous solution containing sodium iodide. 2 Nal(aq) + Cl2(8) 1,9 +2 NaCl(aq) How many grams of sodium iodide, Nal, must be used to produce 15.8 g of iodine, 1,? mass: 8 Nal TOOLS x10 Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate, KCIO,(). The equation for the reaction is 2 KCIO, 2 KCI + 30, Calculate how many grams of O2(g) can be produced from heating 59.0 g KCIO,($). mass: 802