Answer to Question #171249 in Inorganic Chemistry for Tammy

Question

The rate constant the for the reactions below is presented in the table. It an interchange mechanism. Based on the data below which do you think is 𝐼𝑑 and which might be 𝐼𝑎. Give reason(s) for your answers. (𝑈𝑛𝑖𝑡 𝑜𝑓 𝑡h𝑒 𝑟𝑎𝑡𝑒 𝑐𝑜𝑛𝑠𝑡𝑎𝑛𝑡 𝑘 𝑖𝑠 𝑠−1)

[M(H2O)6]n + Y → [M(H2O)5 Y]n+ + H2O 𝑀 = 𝑁𝑖2+ 𝑎𝑛𝑑 𝑃𝑏2+

CH CO− F− NH SCN- 323

𝑁𝑖2+ 3x104 8x103 3x104 6x103 𝑃𝑑2+ 2x106 3x102 7x102 3x108

Answer 1

Pb²⁺ = dissociative interchange

Ni²⁺ = associative interchange