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What factor affects the ‘strength’ of a buffer?
Why was benzoic acid used as a solvent when making up the glucose stock standard solution?
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- Hatsume Mei wanted to maintain the pH of a certain solution within a specified range. What should she use to accomplish this? Analyte Titrant Standard BufferMention the types of volumetric titration and briefly point out their differences.What is the effect of buffer additives (organic acids) on the enhancement factor?
- Determination of Water Hardness experiment was designed and suitable for bottled mineral water. What would you observe (and the changes in the result) if you performed complexometric titration based on the performed procedure on...a) distilled water b) tap waterWhat is the difference between 1X and 5X buffer solution that have the same recipe?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.
- Would the molarity of HCl as determined in this experiment be too high or too low if:The buret is contaminated with an acid solution. The buret contains a large air bubble in the tip, which disappears in the course of the titration.A. Why is there imidazole in the wash buffer?For titration, what is the purpose of a dropwise rate?
- Explain the reason behind the addition of the starch indicator near the endpoint for this analysis. What is the consequence when the solution is colorless before addition of the starch indicator?Your titration experiment included phosphoric acid, liqid starch, and Iodine-Potassium-Iodide (IKI) solution. The following information is given: iodine is too weakly colored to act as an effective primary indicator, but it is enhanced by its interaction with stach in a solution. The secondary indicator you will use in this experiment is iodine-starch complex. Iodine-potassium-iodide is the titrant. What acted as the primary indicator in this experiment? The secondary indicator? What was the role of the phosphoric acid? What would happen if you forgot to add it, or added a base instead?One uses a 25.0 mL volumetric pipet to measure the volume of the buffer. The absolute error in this measurement is ± 0.03 mL. What is the relative error (%) in this meaurement?