Methyl orange, HMO, is a common acid-base indicator. In solution it ionizesaccording to the equation:HMO(aq) → H(aq) + MO (aq)yellowredIf methyl orange is added to distilled water, the solution turns yellow. If a drop or twoof 6 M HCI is added to the yellow solution, it turns red. If to that solution one adds afew drops of 6 M NaOH the color reverts to yellow. Why does adding 6 M HCI to the yellow solution of methyl orange tend to cause the color tochange to red?OHCI dissociates into H* and Cl ions. This leads to an increase in [H*], resulting in a shift to the left to formHMO.OHCI dissociates into H* and Cl ions. This leads to an increase in [CI], resulting in separate reaction that canform HMO.OHCI reacts with water in the aqueous solution to form HMO.O None of these.

Le chatelier principle says that equilibrium will shift in such a way so as to undo the effect of…

Answered: HMO (aq) → H+. н (aq) red ed to…

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HMO (aq) → H+. н (aq) red ed to distilled water, the solut

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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Question

Methyl orange, HMO, is a common acid-base indicator. In solution it ionizes
according to the equation:
HMO(aq) → H(aq) + MO (aq)
yellow
red
If methyl orange is added to distilled water, the solution turns yellow. If a drop or two
of 6 M HCI is added to the yellow solution, it turns red. If to that solution one adds a
few drops of 6 M NaOH the color reverts to yellow.

Why does adding 6 M HCI to the yellow solution of methyl orange tend to cause the color to
change to red?
OHCI dissociates into H* and Cl ions. This leads to an increase in [H*], resulting in a shift to the left to form
HMO.
OHCI dissociates into H* and Cl ions. This leads to an increase in [CI], resulting in separate reaction that can
form HMO.
OHCI reacts with water in the aqueous solution to form HMO.
O None of these.

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