An unknown solution is blue with indigo carmine and blue with thymolphthalein. From that information, predict the approximate pH range of the unknown solution, then determine the colour of the following indicators in that solution. Indicator Colour

Q: An unknown solution is red with phenol red and colourless with thymolphthalein. From that…

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Q: Acetic acid titration by KOH solution. Medium in Equivalent point is: Weak alkaline Weak acid;…

A: Given Acid = Acetic Acid Base = KOH Medium in Equivalence point is = To be determined

Q: A beaker with 145 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total…

A: Given: Volume of buffer = 145 mL = 0.145 L                                                   (since…

Q: The table below shows the plH values at which two different indicators change colour Indicator…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for…

Q: The useful pH range for a typical indicator is ________ 14 2 4…

A: pH is also called as the power of H+ ions. The pH value tells us about the acidic or the basic…

Q: The indicator methyl red has a pKHIn = 4.95. It changes from red to yellow over the pH range from…

A: Given-  pKHIn of indicator = 4.95            Colour of indicator at pH=4.4 - red           Colour of…

Q: The table shows respective color change when a universal indicator is added to the clear solutions.…

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Q: Use acid-base titration to determine the concentration of: – A weak acid: CH3COOH 0.100 M NaOH…

A: Since the given data is of strong acid only, thus concentration of strong acid has been determined.…

Q: Table of Indicator Colour Changes pH Indicator 3 4 5 6 7 8 9 10 11 12 Bromophenol blue Yellow 3.0 –…

A: The color change by an indicator is not shown abruptly at any particular pH value. However, the…

Q: Which statement is FALSE for indicators? Indicators are chosen to change color as close to the end…

A: An indicator is a substance that changes its color in acidic and basic medium. An indicator could…

Q: Consider this table of indicators and their properties. Indicator Low pH color Color change pH…

A: Pure water has a pH of 7 at 25o C, so an indicator which has 7 in its colour change range could be…

Q: In a system where a weak acid is an analyte, a strong base is a titrant, what is the milestone pH…

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Q: pH Indicator 1 7 8. 9 10 11 12 Colorless Phenolphtalein Bromthymol Blue Methyl Orange Pink Yellow…

A: Given that :

Q: Based on the list of common indicators from the lecture slides and module, what is the appropriate…

A: When selecting an indicator for acid-base titrations we have to choose an indicator whose pH range…

Q: An alternative way of preparing the imidazolium buffer involves preparing solutions of imidazole (A)…

A: Note - Since you have asked multiple questions, we will solve the first question for you. If you…

Q: Which indicator would show a pH change from 6 to 7? A Phenol red indicator B Methyl red indicator…

A: Indicator.                        PH range  Methyl red.                      0.3-1.8 Methyl orange…

Q: Which statement is FALSE for indicators? Group of answer choices The pH range over which an…

A: The false statement along with explanation is given in the following step.

Q: The table shows respective color change when a universal indicator is added to the clear solutions.…

A: Solution :     Universal indicator is prepared by mixing the different indicators that show…

Q: Define the following 1. Equivalence point 2. End point 3. Indicator

A: The given terms can be defined as follows:

Q: This is the reaction with Acid-Base indicator. Please explain clearly what the result below means.…

A: Acid -Base indicator are those compounds which tell whether the substance is acidic or basic in…

Q: 20 ml of 0.1 Mole/L of sodium hydroxide solution is added to 10 MI of 0.2 mole/L of sulphuric acid,…

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Q: A solution has a pH of 4.5. What would be the color of the solution if each of the following…

A: (a) bromphenol blue blue color      (b) bromthymol blue  colorless

Q: The phenolphthalein pH indicator is clear and colorless in an acidic solution, but it turns a pink…

A: Given: Acidic solution contains phenolphthalein and you add a drop of Solution 1 to Solution 2. A…

Q: Indicator pH range Methyl orange 3.1 - 4.4 Methyl red 4.4 - 6.2 Bromthymol blue 6.2 – 7.6…

A: Interpretation -  To explain that which pH indictor would be best for the titration of acetic acid…

Q: A solution is tested with three indicators and it has a pH of 4.6. Identify the colours of the…

A: Indicator are those species which changes colour according to solutions pH .

Q: KCO Indicator Colof pH Range Indicated Range Overlap Calculated pH Thymol Blue Blue Metuersel Purple…

A: Potassium carbonate is a basic salt that is formed weak acid and strong base. That is it formed from…

Q: This question is concerned with acid/base. The ionic product of water may be taken as 10-14…

A: Introduction: The Titration is provided a graph that is called titration curve which contains the…

Q: The degree of dissociation of acids is often expressed in terms of pKa. pKa then is Directly…

A: The correct option with explanation is as follows:

Q: Indicator Acid color Color change, pH range Base color Methyl orange Red 3.1 - 4.5 Yellow Brome…

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Q: 42 Which of the following statements is/are true of a good acid-base indicator. 1. it is a weak acid…

A: Acid base indicator are used to determine the colour change of a solution depending upon the pH of…

Q: Answer in scientific notation with appropriate sigfigs. A buffer solution is prepared by combining…

A: Buffer solution :- A mixture of weak acid and its salt with strong base is called as acidic buffer…

Q: The beaker  contains 0.1 M acetic acid solution with methyl orange as an indicator. Another beaker…

A: A buffer is formed when a weak acid is mixed with its conjugate base or weak base with its conjugate…

Q: Use the following information as a guide to help answer the next three questions. Your answer MUST…

A: Concept - Chemical indicators a substance that by changing color, confirm the presence or absence of…

Q: Buffering Capacity Which group is water, which group is phosphate salt, and which group is optimen…

A: The pH of water increases sharply because the concentration of hydroxyl ions increases suddenly on…

Q: Which of the given statements are CORRECT for an indicator that ionizes as shown below (Ka=1.0 x…

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Q: For strong acid and weak base titration,methyl orange is a suitable indicator whereas…

A: For a strong acid and week base titration, methyl orange is the suitable indicator as its pH value…

Q: Indicators can be used to help approximate the pH of a solution based on the indicator colour. Here…

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Q: The pH range of phenolphthalein indicator is 8.4 - 10.4 (if indicator cons., Ki = 1x10-9.4) False…

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Q: Methyl orange is an indicator used for detecting the pH of acidic solutions. The red, protonated…

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Q: An aqueous solution of an unknown solid salt was placed into five different test tubes. Into each…

A: The approximately pH value would be 5.2

Q: What factor governs the selection of an indicator for a neutralization titration? A) the final…

A: Indicator are used in acid base titration or neutralization titration to detect the end point of…

Q: The indicator thymol blue has two color transitions as indicated in the table. Thymol Blue Indicator…

A: The given are the pH range of indicator thymol blue. With change in pH the color  of the indicator…

Q: Table 12.5 (data)     Indicator Color in 0.05 M HCl Color in 0.05 M NaOH Methyl red…

A: As per the given experiment, the colors of different indicators in 0.05 M HCl and 0.05 M NaOH is…

Q: You are asked to determine the ethanoic acid, CH3COOH content in a vinegar sample. Give suitable…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: You have a 20 mL sample of acetylcholine (a neurotransmitter) with an unknown concentration and a pH…

A: Acetylcholine is converted to acetic acid and choline by acetylcholinesterase. This acetic acid…

Q: How to distinguish between an Acidic Buffer and Acidic Solution as well as Basic Buffer and Basic…

A: An acidic solution will have a pH anywhere from 0-6 and upon addition of a small amount of strong…

Q: Select from the table below: INDICATOR PH Range Methyl orange  3.2 - 4.4 Phenolphthalein 8.2 - 10.0…

A: The explanation of answer for this question is in next step.

Q: An unknown liquid was found in a science room and was analyzed by some Chemistry 20 students. To…

A: The solution is given below -

Q: is the point at which the titration is complete Endpoint equivalence point Boiling point none of…

A: Given,  ..................................is the point at which the titration is complete ?  Options…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.