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Topic: What are the redox reactions that take place when i mix these reagents together?  (Read 4943 times)

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Offline scissors

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What are the redox reactions that take place when i mix these reagents together?
« on: November 26, 2009, 02:08:18 AM »
in these exact orders

(a) MnO4- + H+ + SO3 2-

(b) MnO4- + SO3 2- + H+
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Offline AWK

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Re: What are the redox reactions that take place when i mix these reagents together?
« Reply #1 on: November 26, 2009, 02:24:47 AM »
Show some work!
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AWK

Offline scissors

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Re: What are the redox reactions that take place when i mix these reagents together?
« Reply #2 on: November 26, 2009, 03:44:13 AM »
 ???
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Offline AWK

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Re: What are the redox reactions that take place when i mix these reagents together?
« Reply #3 on: November 26, 2009, 07:43:33 AM »
all reactions are unbalanced
1.
MnO4- + H+ + SO3 2- = Mn 2+ + SO4 2- + H2O

2.
a) MnO4-  + SO3 2- = MnO2 + SO4 2- + OH-
after addition of acid (when sufficient amount of SO3 2- is present)
b) MnO2 + SO3 2- + OH- + H+ = Mn2+ SO4 2- + H2O
After addition of balanced 2a and 2b you should get balanced 1
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Offline scissors

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Re: What are the redox reactions that take place when i mix these reagents together?
« Reply #4 on: November 26, 2009, 09:15:17 PM »
thanks!
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