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[Post New]30 Oct 2007 18:48:14 IST
    Subject: Physical chemistry good one stoichiometry
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Greatdreams (3307)

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CuSO4 reacts wit KI in acidic medium to liberate I2.
2CuSO4 + 4 KI = Cu2I2 + 2K2SO4. 
Mercuric periodate Hg5(IO6)2 eacts with a mixture of KI and HCl following the eqn
Hg5(IO6)2 + 34 KI + 24 HCL =  5K2HgI4 + 8I2 + 24KCL + 12H2O.
The liberated iodine is titrated against Na2S2O3 solutn.1ml of which is equivalent to .0499 gms of CuSO4.5H2O. What volume in ml of Na2S2O3 soln will be reqd to react withI2 liberated from 0.7425 gms of Hg5(IO6)2?
mol wt of mercuric periodate = 1448.5 and mol wt of hydrated coppersulphate = 249.5 gms 
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[Post New]16 Nov 2007 20:36:22 IST
    Subject: Physical chemistry good one stoichiometry
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Greatdreams (3307)

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hey pls folks solve this quesn
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From J.R.R. Tolkien's 'The Lord of the Rings':

All that is gold does not glitter
Not all who wander are lost
The old that is strong does not wither,
Deep roots are not reached by frost.
From ashes a fire shall be woken
From shadows a light shall spring
Renewed shall be blade that's broken
The crown less again shall be king.
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[Post New]16 Nov 2007 22:48:27 IST
    Subject: Physical chemistry good one stoichiometry
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BALGANESH (682)

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Give the reaction between I2 and Na2S2O3
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