o 6/30/2016 1 1 :55 PM O 5.5/10 6/29/2016 1 1:57 PM Gradebook e. Print Calculato

Question

o 6/30/2016 1 1 :55 PM O 5.5/10 6/29/2016 1 1:57 PM Gradebook e. Print Calculator -d Periodic Table Question 23 of 25 General Chemistry 4th Edition University Science Books presented by Sapling Learning The amount of I3 (aq) in a solution can be determined by titration with a solution containing a known concentration of S203 (aq) (thiosulfate ion). The determination is based on the net ionic equation 2s,o:-(ae)+1( s.oj.(aq) +31-(ae) Given that it requires 35.3 mL of 0.290 M Na2S203(aq) to titrate a 15.0-mL sample of l3 (aq),calculate the molarity of 13 (aq) in the solution Number Previous Give Up & View Solution e Check Answer Next Exit Y Hint

Explanation / Answer

from equation

M1V1/n1 = M2V2/n2

(35.3*0.29/2) =(15*M2/1)

M2 = 0.341 M

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