Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Question

Why the reaction is fastest for Ni and slowest for Cr?

[Cr(CN)6]³¯ +6 14 CN-
slowest
[Cr ( 14 CN)6] ³- +6 CN¯
11/2 =24 days
+6CN-
expand button
Transcribed Image Text:[Cr(CN)6]³¯ +6 14 CN- slowest [Cr ( 14 CN)6] ³- +6 CN¯ 11/2 =24 days +6CN-
Cr(CN)6
[Ni(CN) 4]²¯ +414 CN-
very
fast
→ [Ni(14 CN) 4]²¯ + 4CN¯
t1/2
= 30 sec
[Mn(CN)6] ³- +614 CN- slow
→ [Mn(14 CN)6]³¯ +6CN¯
=
t1/2 1 hr
expand button
Transcribed Image Text:Cr(CN)6 [Ni(CN) 4]²¯ +414 CN- very fast → [Ni(14 CN) 4]²¯ + 4CN¯ t1/2 = 30 sec [Mn(CN)6] ³- +614 CN- slow → [Mn(14 CN)6]³¯ +6CN¯ = t1/2 1 hr
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