The initial concentration of 192 ir is 2.68 M. The concentration of 192r changes within 1.2 x 10 seconds [Remember 1 day=86400 seconds! 1. Calculate, k, rate constant, for 1st order half-life of 192r, using seconds It Calculate the final concentration of 192r for 1st order using seconds. For the toolbar, press ALT+F10 (PC) or ALT-FN-F10 (Mac). BIVS Paragraph N Arial FRE 安田园 <> 0) X₂ 8 8 1 111 A24 ¶ 99 52 L B BB 19

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