The equilibrium between the methyl orange indicator and indicator ion can be expressed in the following...
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The equilibrium between the methyl orange indicator and indicator ion can be expressed in the following reaction: (CH3)2NHC6H4N=NC6H4SO3 +H2O (CH3)2NC6H4N=NC6H4SO3- + H3O+ Methyl Orange ((CH3)2NHC6H4N=NC6H4SO3 ) is red while the indicator ion ((CH3)2NC6H4N=NC6H4SO3-) is yellow-orange Describe the color changes on the addition of: |
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HCl |
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NaOH |
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Interpret the hydrochloric acid addition change in terms of the methyl orange indicator and indicator ion equilibria and the Le Chatelier principle |
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Interpret the sodium hydroxide addition change in terms of the methyl orange indicator and indicator ion equilibria and the Le Chatelier principle |
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The equilibrium between the methyl orange indicator and
indicator ion can be expressed in the following...
1. Interpret the hydrochloric acid addition change in terms of the methyl orange indicator and indicator...
1. Interpret the hydrochloric acid addition change in terms of the methyl orange indicator and indicator ion equilibria and the Le Chatelier principle. Interpret the sodium hydroxide addition change in terms of the methyl orange indicator and indicator ion equilibria and the Le Chatelier principle Would you predict more color change would come if HCl or HC2H3O2 were added to the indicator?
Consider the following indicator reaction for methyl orange: HIn(aq)+H2O(l)↽−−⇀H3O+(aq)+In−(aq) Given that the anion of methyl orange,...
Consider the following indicator reaction for methyl orange: HIn(aq)+H2O(l)↽−−⇀H3O+(aq)+In−(aq) Given that the anion of methyl orange, In−, is yellow, and the nonionized form HIn is red. If most of the indicator is present as In−, then we observe which color?
1. Methyl orange, HMO, is a common acid-base indicator. In solution it ionizes according to the...
1. Methyl orange, HMO, is a common acid-base indicator. In solution it ionizes according to the equation: HMO(aq) = H(aq) + MO"(aq) red yellow If methyl orange is added to distilled water, the solution turns yellow. If a drop or two of 6 M HCl 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 a. Why does adding 6 M HCl to...
HC2H3O2(aq) + H2O() C2H3O2-(aq) + H3O+(aq) In the example equilibrium system, a drop of methyl orange...
HC2H3O2(aq) +
H2O()
C2H3O2-(aq) +
H3O+(aq)
In the example equilibrium system, a drop of methyl orange indicator was added. For this indicator, the solution will be red in high concentrations of HO+, and the solution will turn yellow in low concentrations of H,O+ Initially the equilibrium solution was orange. What color is expected after the addition of the NaC,H,O2? Explain your reasoning. a. b. Initially, the equilibrium solution was orange. What color is expected after the addition of a strong...
2. Explain the effect upon the equilibrium, if any, for each of the substances added (sodium...
2. Explain the effect upon the equilibrium, if any, for each of the substances added (sodium acetate, sodium hydroxide and hydrochloric acid). If you believe that the addition effects the position of the equilibrium, indicate whether the equilibrium shifts toward reactants or products and why. Adding sodium acetate: Adding sodium hydroxide: Adding hydrochloric acid: Data: Observation Test solution Initial Acetic acid + methyl orange А Acetic Acid + methyl orange + first NaC,H,O2 Acetic Acid + methyl orange + second...
Section Name Experiment 2 Advance Study Assignment: Properties of Systems in Chemical Equilibrium 1. Methyl orange,...
Section Name Experiment 2 Advance Study Assignment: Properties of Systems in Chemical Equilibrium 1. Methyl orange, HMO, is a common acid-base indicator. In solution it ionizes according to the equation: HMO(aq) H(aq) + MO (aq) red yellow If methyl orange is added to distilled water, the solution turns yellow. If a drop or two of 6 M HCl is added to the yellow solution, it turns red. If to that solution one adds a few drops of 6 M NaOH...
First distilled water was added to a test tube. Then methyl orange indicator was added. The...
First distilled water was added to a test tube. Then methyl
orange indicator was added. The HCl and NaOH.
Part 1B: Acid/Base Indicator Equilibrium Chemical Reaction involved Initial color of the solution: 1. Adding HCI: a. Color change b. Equilibrium shifting 2. Adding NaOH: a. Color change b. Equilibrium shifting
3. Explain the series of color changes that can occur on thymol blue indicator by the...
3. Explain the series of color changes that can occur on thymol blue indicator by the addition of the following solutions. In each case, give the approximate pH of the solution Color change Red to Yellow Yellow to Blue pH range 12 to 2.8 Thymol blue 8.2 to 9.1 a) A few drops of thymol blue are added to 0.1 M aqueous solution of HCl(aq). b) By adding some solid sodium acetate, NaCH,O2 to a solution of (a) e) By...
In a titration using methyl orange as an indicator 25.0 cm of a solution of 0.1...
In a titration using methyl orange as an indicator 25.0 cm of a solution of 0.1 M sodium hydroxide reacted with 25.0 cm of 0.1 M phosphoric acid, H3PO4, solution. If the experiment is repeated using phenolphthalein in place of the methyl orange as the indicator the volume of the sodium hydroxide used to cause the indicator to change colour is 50.0 cm'. This is because phenolphthalein changes colour when a different number of hydrogen ions in the acid have...
Adding acetate ion produces a change in the color of the indicator. Watch Video-le where a...
Adding acetate ion produces a change in the color of the indicator. Watch Video-le where a drop of methyl orange is added to each of two 3-mL samples of 0.1 M CH3COOH (acetic acid). The 1 M Na CH3COO (sodium acetate) is added a few drops at a time (with mixing) to one of the samples. The effect on the dissociation of acetic acid that is produced by adding sodium acetate is called the common ion effect. Specify the color...
1. Methyl orange, HMO, is a common acid-base indicator. In solution it ionizes according to the equation: HMO(aq) = H(aq) + MO"(aq) red yellow If methyl orange is added to distilled water, the solution turns yellow. If a drop or two of 6 M HCl 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 a. Why does adding 6 M HCl to...
HC2H3O2(aq) +
H2O()
C2H3O2-(aq) +
H3O+(aq)
In the example equilibrium system, a drop of methyl orange indicator was added. For this indicator, the solution will be red in high concentrations of HO+, and the solution will turn yellow in low concentrations of H,O+ Initially the equilibrium solution was orange. What color is expected after the addition of the NaC,H,O2? Explain your reasoning. a. b. Initially, the equilibrium solution was orange. What color is expected after the addition of a strong...
2. Explain the effect upon the equilibrium, if any, for each of the substances added (sodium acetate, sodium hydroxide and hydrochloric acid). If you believe that the addition effects the position of the equilibrium, indicate whether the equilibrium shifts toward reactants or products and why. Adding sodium acetate: Adding sodium hydroxide: Adding hydrochloric acid: Data: Observation Test solution Initial Acetic acid + methyl orange А Acetic Acid + methyl orange + first NaC,H,O2 Acetic Acid + methyl orange + second...
Section Name Experiment 2 Advance Study Assignment: Properties of Systems in Chemical Equilibrium 1. Methyl orange, HMO, is a common acid-base indicator. In solution it ionizes according to the equation: HMO(aq) H(aq) + MO (aq) red yellow If methyl orange is added to distilled water, the solution turns yellow. If a drop or two of 6 M HCl is added to the yellow solution, it turns red. If to that solution one adds a few drops of 6 M NaOH...
First distilled water was added to a test tube. Then methyl
orange indicator was added. The HCl and NaOH.
Part 1B: Acid/Base Indicator Equilibrium Chemical Reaction involved Initial color of the solution: 1. Adding HCI: a. Color change b. Equilibrium shifting 2. Adding NaOH: a. Color change b. Equilibrium shifting
3. Explain the series of color changes that can occur on thymol blue indicator by the addition of the following solutions. In each case, give the approximate pH of the solution Color change Red to Yellow Yellow to Blue pH range 12 to 2.8 Thymol blue 8.2 to 9.1 a) A few drops of thymol blue are added to 0.1 M aqueous solution of HCl(aq). b) By adding some solid sodium acetate, NaCH,O2 to a solution of (a) e) By...
In a titration using methyl orange as an indicator 25.0 cm of a solution of 0.1 M sodium hydroxide reacted with 25.0 cm of 0.1 M phosphoric acid, H3PO4, solution. If the experiment is repeated using phenolphthalein in place of the methyl orange as the indicator the volume of the sodium hydroxide used to cause the indicator to change colour is 50.0 cm'. This is because phenolphthalein changes colour when a different number of hydrogen ions in the acid have...
Adding acetate ion produces a change in the color of the indicator. Watch Video-le where a drop of methyl orange is added to each of two 3-mL samples of 0.1 M CH3COOH (acetic acid). The 1 M Na CH3COO (sodium acetate) is added a few drops at a time (with mixing) to one of the samples. The effect on the dissociation of acetic acid that is produced by adding sodium acetate is called the common ion effect. Specify the color...
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