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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Lourdes on May 19, 2017, 05:59:28 PM

Title: Stoichiometry
Post by: Lourdes on May 19, 2017, 05:59:28 PM

Hi :)
Here I have a balanced redox equation:
8 H2O + 2 Mn2+ + 5 S2O8 2- → 2 MnO4- + 16 H+ + 10 SO42-
The question is: How much potassium peroxodisulfate is needed to produce 316 g of potassium permanganate?
I got 1350 g of K2S2O8, is this the correct answer?
Thank you very much in advance!

Title: Re: Stoichiometry
Post by: Borek on May 20, 2017, 04:23:33 AM

Looks OK to me.

Title: Re: Stoichiometry
Post by: Lourdes on May 20, 2017, 08:40:46 AM

Thank you very much!