When potassium dichromate is added to concentrated hydrochloric acid, it reacts according to the following chemical equation K,C»O¬(s) + 14 HCI(aq) → 2 K* (aq) + 2 Cr³* (aq) + 8 CI¯(aq) + 7 H20(e) + 3 Cl2(g) producing a mixed solution of chromium(III) chloride and potassium chloride and evolving gaseous chlorine. Suppose that 6.20 g of K,Cr,O, reacts with concentrated HCI, and that the final volume of the solution is 100.0 mL. Calculate the final con- centration of Cr³+(aq) and the number of moles of chlorine produced.

When potassium dichromate is added to concentrated hydrochloric acid, it reacts according to the following chemical equation K,C»O¬(s) + 14 HCI(aq) → 2 K* (aq) + 2 Cr³* (aq) + 8 CI¯(aq) + 7 H20(e) + 3 Cl2(g) producing a mixed solution of chromium(III) chloride and potassium chloride and evolving gaseous chlorine. Suppose that 6.20 g of K,Cr,O, reacts with concentrated HCI, and that the final volume of the solution is 100.0 mL. Calculate the final con- centration of Cr³+(aq) and the number of moles of chlorine produced.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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