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Why is a lower concentration of NaOH or HCl used for titration while a solution with higher concentration is used for adjusting the pH of the remaining medium? [Answer in not more than 3 sentences]
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- #Do you think it is possible to use conductometric titration to determine the concentration of a mixture of a strong acid and a weak acid if the mixture is titrated against sodium hydroxide? If yes, how many break/s will the curve show? . #Why is neutral medium or slightly alkaline medium more suitable for Mohr’s method and What are the color changes at the end point?a)What would the balanced equation be in a basic solution? Show all your steps. b) What would the color change of the solution be at the equivalence point? Why? c) If you were to over-titrate, explain whether your calculation for % FeCl2 would be too high or too low and why.Nitric acid (HNO3) and potassium hydroxide (KOH) both are considered as strong electrolytes. Discuss the titration curve (variation of pH with respect to addition of titrant) with suitable diagram and reactions involved when potassium hydroxide is added as titrant to HNO3 analyte.
- How would the results of an experiment change if a basic buffer was utilized instead of an acidic one? in this experiment a strong base and strong acid are titrated agaisnt water and an acidic buffer. however, how were the reuslts differ with a basic buffer? please explainIf the concentrations were halved, i.e., AgNO₃ titrant was 0.2000 M and KBr was 0.1500 M, what will happen to the bromide ion concentration at the equivalence point when compared to the original? Choices: It will be the same. It will be squared. It will be halved. It will be doubled. It will be the square root.Sources of Error Determine the relationship between the observed/apparent value (EX) VERSUS that of the true value (ET) for the quantity being sought by writing either <, >, or = on the space provided TOPIC: Standardization of Titrant Question 7 Distilled water was not equilibrated to room temperature before the preparation of NaOH titrant. EX __ ET TOPIC: Determination of Molar Concentration of each component (Double Indicator Titration) Question 8 No blank correction Ex ___ ET Question 9 Bubbles trapped in the tip of burette: EX ___ ET Question 10 Measuring the sample volume using a volumetric pipet while looking downwards at the meniscus: EX ___ ET
- What is the acid/base ratio? Why is it important in the titrimetric process? (Particularly in Double Indicator Titration Method in Determination of % SO3in a Soluble Sample)In the redox-dichromate titration with solutions containing 2 components, the first inflection point in the titration curve is due to the a) stronger oxidizing agent. b) stronger reducing agent. c) more concentrated analyte. d) less concentrated analyte. e) none of theseWhile preparing the samples for analysis, you forgot that you already added phenolphthalein indicator so you added some more. What will be its effect in the volume of the titrant needed to reach the endpoint? Select one: A. Increase B. Decrease C. No effect D. Cannot be determined Primary standards are used to determine the exact concentration of the titrant. Based on the criteria of primary standards, which of the following cannot be used as a primary standard? Select one: A.Oxalic acid B. Sodium hydroxide C. Sodium carbonate D. Potassium dichromate During titration, you notice that the retention of the faint pink color is longer than earlier. Your lab partner suggested that you add a “half-drop” to prevent over-titration of the analyte solution. Is it ethical to do the “half-drop” technique? Select one: A. NO. It will cause error in calculations if you forgot to record the volume reading before adding the half-drop. B. YES. No error in calculations will be encountered provided…
- For each of the statements, identify the appropriate key point(s) (I, II, III, IV, V) in the titration.Explain in details what happens in a buffer solution, taking note of the changes and the buffer capacity of acid and base solutions. How do you calculate the total ph change in an experiment that involves five trials.What species are present in a solution giving off a pure blue endpoint in a hard water sample containing an EBT indicator (In) with an EDTA titrant? a. HIn²⁻, CaY²⁻, MgY²⁻ b. HIn²⁻, MgIn⁻, CaY²⁻, MgY²⁻, CaIn⁻ c. HIn²⁻, MgIn⁻ d. HIn²⁻, MgIn⁻, CaY²⁻
