. Describe the selection of a proper indicator , refer to the following points .what is an indicator .chemistry of an acid/base indicator .factors which result in colour change of an indicator . Indicator range . Indicator ranges of different indicators . Which indicators may be used for which reaction .General rule for choice of an indicator . How to determine range at which an indicator will change colour

Q: 4. How could you tell which of the solutions that were able to buffer well against added acid has…

A: Buffer solution & Buffer capacity:An aqueous solution consisting mixture of weak base and its…

Q: * A student wishes to check the amount of HCI found in a bottle in lab. On the label o botde, the…

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Q: Consider a solution that contains 0.294 M potassium chloride and 0.21 M magnesium chloride. What is…

A: When a strong electrolyte is dissolved in water, it dissociates completely. But this does not happen…

Q: Phenolphthalein is an indicator that dissociates in water. Explain the color change observed at the…

A:

Q: How to prepare the following for a titration procedure? 1. 20 mL of 2 M HCl 2. 20 mL of 0.05 M KOH…

A: Molarity - It is defined as moles of solvent dissolved per liters of solution. The molar mass  of  H…

Q: The preparations of two aqueous solutions are described in the table below. For each solution, write…

A: The solutions given are,

Q: . Why do we need to correct for the indicator? . What is/are the pairs that cannot exist together in…

A: (i) We need to perform double indicator titration when the experiments is needed to determine and…

Q: How does the change of color in indicators define the acidity or basicity of solution put into it?

A: It is Substance in which acid or base is added then due to difference in pH indicators changes it's…

Q: Why were phenolphthalein chosen to be the indicator? What can other possible indicators substitute…

A: Typically, weak protolytes that change colour in solution in response to pH are used as acid-base…

Q: Vinegar contains acetic acid. Using your understanding of solubility, equilibrium, and acid-base…

A: Vinegar is diluted acetic acid and contains water.Calcium chloride is a salt of a strong base and…

Q: . Commonly used standards for the direct determination of the normality of an acid. 2. It is used…

A: Given:  1. Commonly used standards for the direct determination of the normality of an acid. 2. It…

Q: Given three (3) titration curve for acid-base titration. Identify a suitable acid-base pair for the…

A: Since you have posted multiple questions, we will answer all three subparts of first question only.…

Q: 101.Chemical processes in which a proton donor reacts with a proton acceptor

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

Q: A 0.403 g sample of KHP will be titrated with a NaOH solution with an assumed concentration of 0.100…

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Q: The antacid TUMS was titrated using 0.3 m HCl. The buret reading was initally 0.53ml. After reaching…

A: Volume of HCl = Final reading of buret - Initial reading of buret Given that: Initial reading of…

Q: 1. A student in the lab places drops of the indicator phenolphthalein a solution. The color of the…

A: a) An indicator phenolphthalein is an acid/base indicator. When phenolphthalein is added to a clear…

Q: Determine if the following solids will increase decrease or not affect the solutions pH when…

A: If strong acid and weak base is formed then solution become acidic and pH decreases.

Q: During and acid/base neutralization titration, 20.23 mL of 0.225 M NaH is required to completely…

A: Given data Volume of NaOH solution = 20.23 mL   molarity (M) of the NaOH solution = 0.225 M Volume…

Q: Selection of suitable indicator or choice of indicator-Define

A: In the quantitative analysis, volumetric titration, the significant pH change occurs near or at the…

Q: 13. Suppose you are explaining how to perform a titration to someone who has never before done a…

A: The objective of the question is explain the purpose of titration and give   tips for accurate and…

Q: added from the burette is used up. 2. In the titration of a strong acid with a strong base, the pH…

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Q: 15. A 0.10 M solution of a strong monoprotic acid will be standardized using anhydrous sodium…

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Q: 1. Can you consider titration as a neutralization reaction? Explain. 2. Draw an acid base titration…

A: 1. Answer - Yes we can  consider titration as a neutralization reaction A titration is a laboratory…

Q: Ten mL of a stock solution of the bromocresol green indicator is mixed with 10 mL of NaOH. Which of…

A: b) The concentration of the indicator decreases.     The concentration of a solution in molarity…

Q: The pH and electrical of 4 differnt mixures were measured: (Table on picture) a Explain why…

A: *As per the guideline, the first three parts are answerable, please repost the remaining parts.…

Q: A. The pH range over which an indicator changes color is the transition range B. Indicators are…

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Q: What is the nature of samples that should NOTbe placed inside the drying-oven? A. Potential Oxidant…

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Q: Question 2 a. What is the use of an indicator in acid-base titration? b. Give an example of an…

A: a. In the acid-base titration, the end point of titration can be detected by indicator. While…

Q: A solution containing a hydronium ion concentration of  3.28 X 10-9 has a hydroxide ion…

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Q: Standardizing a solution of sodium hydroxide for our acid-base titration experiment means O a. to…

A: Standardization of any solution is done to determine the unknown concentration of one of the given…

Q: Give examples from the table below that would be best acid base indicator to use for the following…

A: ( By the given table )  Strong acid , strong base  – methyl violet , alizarin yellow Weak acid,…

Q: What is impoantant about mass percent in chemistry? What does it do in the context of a acid-base…

A: The mass percent is the percentage of a substance present in a mixture or solution. It can be…

Q: What is the purpose of an indicator in a solution with an unknown concentration? A) It tells when…

A: Indicator: Any substance that gives a visible sign, usually by a color change or absence of a…

Q: First paragraph: Discuss what is meant by a titration. Discuss the terminology used in a titration.…

A: Titration is a technique used to measure the concentration of an unknown solution.

Q: Why would boiling water is necessary to be used in titration? What happened to the concentration if…

A: The boiling point of a liquid is the temperature at which the vapor pressure of the liquid becomes…

Q: 5. Suggest a suitable indicator to be used in the titration of a) Weak acid and strong base b) Weak…

A: Indicator: A substance often used in the titration to indicate the point at which reaction is…

Q: Explain why an acid-base indicator changes color over a range of pH values rather than at a specific…

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Q: 2. Why is it important that the color change occurs by the addition 8f a single ulUp! its effect on…

A: In the question 3 we have to tell that why erlenmeyer flask preferred over beaker while performing…

Q: A 0.398 g sample of KHP will be titrated with a NaOH solution with an assumed concentration of 0.100…

A: The objective of this question is to calculate the volume of Sodium hydroxide (NaOH) solution…

Q: When titrating a strong acid with a strong base, the equivalence point is reached when: Select one:…

A: Equivalence point: Point in titration at which the amount of titrant added is just enough to…

Q: What are some general and specific implications of using titrations to identify unknown acids?

A: Titration is a laboratory technique used to determine the concentration of a solution of known…

Q: ydroxide ion and the equilibrium pH should be high for the balanced equation. What will be F- in…

A: The Ka of HF is 6.6 × 10-4. 0.1 NaF dissociates completely and forms 0.1 M fluoride ions. These…

Q: It is desired to neutralize a solution X that contains a mixture of potassium chloride and…

A: The required reaction: (a) AgNO3 + KCl →AgCl + KNO3 (b) AgNO3 + HBr →AgBr + KNO3

Q: the percentage of KHP in an unknown sample was determined. Which of the following is NOT true.…

A: KHP is potassium hydrogen phthalate is used to standardize NaOH because it does not absorb moisture…