The concentration of So, in a solution is determined by titration with a 0.1884 M dichromate solution. The balanced net ionic equation for the reaction is: Cr₂0, (aq) + 350, (aq) + 8H30 (aq)2Cr³ (aq) + 3504 (aq) + 12H,0(1) (a) If 24.78 mL of the 0.1884 M dichromate solution are needed to react completely with 20.00 ml of the 50,2 solution, what is the concentration of the So, solution? (b) Which of the two solutions was in the buret during the titration? M (c) Suppose at the end of the titration, the solution containing the Cr³ ion is transferred to a volumetric flask and diluted to 300 mL. What is the concentration of Cr3+ in the diluted solution?

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The concentration of So, in a solution is determined by titration with a 0.1884 M dichromate solution. The balanced net ionic equation for the reaction is:
Cr₂0, (aq) + 350, (aq) + 8H30 (aq)2Cr³ (aq) + 3504 (aq) + 12H,0(1)
(a) If 24.78 mL of the 0.1884 M dichromate solution are needed to react completely with 20.00 ml of the 50,2 solution, what is the concentration of the So, solution?
(b) Which of the two solutions was in the buret during the titration?
M
(c) Suppose at the end of the titration, the solution containing the Cr³ ion is transferred to a volumetric flask and diluted to 300 mL. What is the concentration of Cr3+ in the diluted solution?
Transcribed Image Text:The concentration of So, in a solution is determined by titration with a 0.1884 M dichromate solution. The balanced net ionic equation for the reaction is: Cr₂0, (aq) + 350, (aq) + 8H30 (aq)2Cr³ (aq) + 3504 (aq) + 12H,0(1) (a) If 24.78 mL of the 0.1884 M dichromate solution are needed to react completely with 20.00 ml of the 50,2 solution, what is the concentration of the So, solution? (b) Which of the two solutions was in the buret during the titration? M (c) Suppose at the end of the titration, the solution containing the Cr³ ion is transferred to a volumetric flask and diluted to 300 mL. What is the concentration of Cr3+ in the diluted solution?
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