Quimica Geral Lista 09

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Quimica Geral Lista 09

  1. 1. Prof. Dr. Ednilsom Orestes 1 QUÍMICA GERAL Lista de Exercícios 09
  2. 2. Prof. Dr. Ednilsom Orestes 2
  3. 3. Prof. Dr. Ednilsom Orestes 3 Respostas: 14.2) a) ½. b) 1/3. c) 1/6. 14.4) a) 5,4 𝑚𝑜𝑙. 𝐿−1 . 𝑚𝑖𝑛−1 b) 1,8 𝑚𝑜𝑙. 𝐿−1 . 𝑚𝑖𝑛−1 14.6) a) 1,33 𝑚𝑜𝑙. 𝐿−1 . 𝑚𝑖𝑛−1 b) 2,7 𝑚𝑜𝑙 𝐻+ . 𝐿−1 . 𝑚𝑖𝑛−1 c) 0,67 𝑚𝑜𝑙. 𝐿−1 . 𝑚𝑖𝑛−1 14.10) a) 𝑘0 = 𝑇𝑜𝑟𝑟. 𝑠−1 b) 𝑘1 = 𝑠−1 c) 𝑘2 = 𝑇𝑜𝑟𝑟−1 . 𝑠−1 14.12) 4,4 × 10−6 𝑚𝑜𝑙 𝐶2 𝐻6. 𝐿−1 . 𝑠−1 14.16) 𝑣 = 𝑘[𝐹𝑒2+] 𝑎[𝑂2] 𝑏[𝐻3 𝑂+] 𝑐 onde 𝑎 = 3, 𝑏 = 1 e 𝑐 = 1. Daí: 𝑣 = 𝑘[𝐹𝑒2+]3[𝑂2]1[𝐻3 𝑂+]1 14.18) a) 𝑎 = 2 e 𝑏 = 1, ordem total da reação = 3. b) 𝑣 = 𝑘[𝐴]2[𝐵]1 . c) A partir do experimento 2: 𝑘 = 116,7 𝐿−2 . 𝑚𝑜𝑙−2 . 𝑠−1 . 14.20) a) 𝑎 = 3 e 𝑏 = 1, ordem total da reação = 4. b) 𝑣 = 𝑘[𝐴]3[𝐵]1 . c) A partir do experimento 1: 𝑘 = 5,5 × 𝐿−2 . 𝑚𝑜𝑙−2 . 𝑠−1 . 14.22) 1,9 × 10−2 𝑚𝑜𝑙. 𝐿−1 14.24) a) 0,023 min. b) 𝑘 = 3,4 × 10−3 𝑠−1 c) 𝑘 = 5,5 × 10−2 𝑚𝑖𝑛−1 14.26) a) 𝑡1 2⁄ = 4,6 𝑠. b) [𝑁2 𝑂5] 𝑡 = 0,0567 𝑚𝑜𝑙. 𝐿−1 × 𝑒−(0,15𝑠−1×2,0 𝑠) c) 𝑡 = 9,6 𝑠 = 0,16 𝑚𝑖𝑛 14.28) a) 𝑡1 2⁄ = 10,1 𝑚𝑖𝑛 e 𝑡 = 30,3 𝑚𝑖𝑛. b) 𝑡 = 33,6 𝑚𝑖𝑛. c) 𝑡 = 16,0 𝑚𝑖𝑛. 14.30) 𝑘 = 3,71 × 10−5 𝑠−1 14.34) a) 𝑘 = 4,0 𝐿. 𝑚𝑜𝑙−1 . 𝑠−1 b) 𝑘 = 5,75 × 10−4 𝐿. 𝑚𝑜𝑙−1 . 𝑠−1 14.36) a) 𝑡1 2⁄ = 0,350 ℎ𝑠. b) 𝑡 = 0,802 ℎ𝑠. c) ln ( 𝑀𝑎𝑠𝑠𝑎 𝑖𝑛 𝑀𝑎𝑠𝑠𝑎 𝑟𝑒𝑠𝑡𝑎 ) = 𝑘𝑡 = 1,48 ⇒ 𝑀𝑎𝑠𝑠𝑎 𝑟𝑒𝑠𝑡𝑎 = 𝑀𝑎𝑠𝑠𝑎 𝑖𝑛 𝑒1,48 = 1,57 𝑚𝑔. 14.38) a) 𝑡1 2⁄ = 9,3 𝑠. b) 𝑡 = 1,4 × 102 𝑠 c) 𝑡 = 74,9 𝑠

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