February 25, 2017

Homework Help: Chemistry

Posted by Anonymous on Tuesday, April 1, 2014 at 5:37pm.

a potassium dichromate is prepared by 0.3525grams of K2Cr2O7 is enough water to yield 250.0mL of solution. a student then measures 10.00mL of an unknown solution of Fe2+ into an erlenmeyer flask and dilutes with 90mL of 1.0M hydrochloric acid. she then titrates this sample with the solution prepared above. if 38.40mL of the potassium dichromate solution is needed to reach the end point, what is the concentration of Fe2+ in the original unknown solution?

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