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Methyl orange may be used as an indicator in acid-base titrations, it is described by the...
Methyl orange is an indicator with a Ka of 1 x 10-4. Its acid form, HIn,...
Methyl orange is an indicator with a Ka of 1 x 10-4. Its acid form, HIn, is red, while its base form, In-, is yellow. At pH 7.0, the indicator will be___________. a. red. b. orange. c. yellow. d. blue. e. not enough information
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...
The equilibrium between the methyl orange indicator and indicator ion can be expressed in the following...
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: HCl NaOH 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...
(1 punt) viethyl orange is an acid-base indicator. In solutions of pH <3.1 it is red...
(1 punt) viethyl orange is an acid-base indicator. In solutions of pH <3.1 it is red (absorbs around 550nm), and in solutions of pH > 4.4 it is yellow (absorbs around 650nm). Identify which structure is fed and which is yellow. Draw at least one resonance structure that helps to support your decision. 5. (1 point) A solution of 4-methyl-3-penten-2-one in ethanol shows an absorbance of 0.52 at 236 nm in a cell with a 1.00 cm light path. Its...
QUESTION 1 6 points Save Answer The purpose of an indicator in an acid-base titration is...
QUESTION 1 6 points Save Answer The purpose of an indicator in an acid-base titration is to indicate the of the titration. Use Table 10.2 for the following question. If an acidic solution is titrated with a basic solution and methyl violet is used as an indicator, the solution color will change from to QUESTION 2 3 points Save Answer The molarity of a solution prepared by dissolving 17.0 g of hydrochloric acid (HCI (aq) in 133 mL of water...
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...
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...
Please show all work as need and circle the correct answer. Thanks 6. Maleic acid is...
Please show all work as need
and circle the correct answer. Thanks
6. Maleic acid is a diprotic organic acid with the structure shown below. A titration curve was generated when 75.0 mL of a 0.0125 M maleic acid solution was titrated with NaOH. HOOC COOH PH maleic acid o 80 20 40 60 Volume of NaOH (mL) A. (6 pts) What was the approximate concentration of the NaOH solution? B. (3 pts) What is the approximate pka of maleic...
NON N(CH3)2 Na 0,5 Na Os N - N(CH3)2 1. methyl orange, an acid-base indicator HC...
NON N(CH3)2 Na 0,5 Na Os N - N(CH3)2 1. methyl orange, an acid-base indicator HC HC H excess NH NH4Cl 2. H H NH2 a = Electrophilic addition d = Sy2 Nucleophilic substitution g=Nucleophilic subs at carbonylacyl Xfer) b =E2 Elimination e-Electrophilic aromatic substitution h = Conjugate (nucleophilic) addn c=Syl Nucleophilic substitution 1=Carbonyl nucleophilic addn Identify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters ai for your answers
ACID-BASE TITRATIONS HOMEWORK Use the data in Option A to answer questions 1.5 1. Write a...
ACID-BASE TITRATIONS HOMEWORK Use the data in Option A to answer questions 1.5 1. Write a balanced equation for the lanced equation for the reaction of the acid and base indicated. CH₃CH2COOH(aq) + NOOH(aq) + CH₂CH₂COONa(aq) + H₂O(e) 2. Determine the volume of titrant added at the equivalence point. CH3CH₂ Cootrag) + NaOH(aa) CH₃CH aded at the equivalence point. SHOW ALL WORK! 19) + NaOH (aa) + CH₃ CH₂ COONacaq) + H2Ocel 3. Determine the pH of the solution at...
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...
(1 punt) viethyl orange is an acid-base indicator. In solutions of pH <3.1 it is red (absorbs around 550nm), and in solutions of pH > 4.4 it is yellow (absorbs around 650nm). Identify which structure is fed and which is yellow. Draw at least one resonance structure that helps to support your decision. 5. (1 point) A solution of 4-methyl-3-penten-2-one in ethanol shows an absorbance of 0.52 at 236 nm in a cell with a 1.00 cm light path. Its...
QUESTION 1 6 points Save Answer The purpose of an indicator in an acid-base titration is to indicate the of the titration. Use Table 10.2 for the following question. If an acidic solution is titrated with a basic solution and methyl violet is used as an indicator, the solution color will change from to QUESTION 2 3 points Save Answer The molarity of a solution prepared by dissolving 17.0 g of hydrochloric acid (HCI (aq) in 133 mL of water...
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...
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...
Please show all work as need
and circle the correct answer. Thanks
6. Maleic acid is a diprotic organic acid with the structure shown below. A titration curve was generated when 75.0 mL of a 0.0125 M maleic acid solution was titrated with NaOH. HOOC COOH PH maleic acid o 80 20 40 60 Volume of NaOH (mL) A. (6 pts) What was the approximate concentration of the NaOH solution? B. (3 pts) What is the approximate pka of maleic...
NON N(CH3)2 Na 0,5 Na Os N - N(CH3)2 1. methyl orange, an acid-base indicator HC HC H excess NH NH4Cl 2. H H NH2 a = Electrophilic addition d = Sy2 Nucleophilic substitution g=Nucleophilic subs at carbonylacyl Xfer) b =E2 Elimination e-Electrophilic aromatic substitution h = Conjugate (nucleophilic) addn c=Syl Nucleophilic substitution 1=Carbonyl nucleophilic addn Identify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters ai for your answers
ACID-BASE TITRATIONS HOMEWORK Use the data in Option A to answer questions 1.5 1. Write a balanced equation for the lanced equation for the reaction of the acid and base indicated. CH₃CH2COOH(aq) + NOOH(aq) + CH₂CH₂COONa(aq) + H₂O(e) 2. Determine the volume of titrant added at the equivalence point. CH3CH₂ Cootrag) + NaOH(aa) CH₃CH aded at the equivalence point. SHOW ALL WORK! 19) + NaOH (aa) + CH₃ CH₂ COONacaq) + H2Ocel 3. Determine the pH of the solution at...
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