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Titration calculation question?

Hi guys,

on this q, I don't understand why the moles of Fe2+ (1.75 x 10-3) was multiplied by 10 to get Fe3+ moles? Looking at the equation the moles of Fe2+ and Fe3+ are equal ? how is the moles of Fe3+ 10 times more???

Thank you
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Avatar for TiTo20
TiTo20
7
Original post by Cleoleo
Hi guys,

on this q, I don't understand why the moles of Fe2+ (1.75 x 10-3) was multiplied by 10 to get Fe3+ moles? Looking at the equation the moles of Fe2+ and Fe3+ are equal ? how is the moles of Fe3+ 10 times more???

Thank you


The number of moles you worked out was for 25cm^3 of the solution, out of 250cm^3, so you times it by ten to get the number of moles in all of the original solution =]


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Reply 2
Avatar for Cleoleo
Cleoleo
OP
1
Original post by TiTo20
The number of moles you worked out was for 25cm^3 of the solution, out of 250cm^3, so you times it by ten to get the number of moles in all of the original solution =]


This was posted from The Student Room's iPhone/iPad App


ooooooh. gosh, i need to read the damn q!

I guess if I multiply my final ans by 10, it'll be k?

Thanks :biggrin:

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