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30 Αυγ 2022 · The pH curve diagram below represents the titration of a strong acid with a strong base: As we add strong base to a strong acid, the pH increases slowly until we near the equivalence point, where the pH increases dramatically with a small increase in the volume of base added.
12 Απρ 2023 · Complete the following table and generate a titration curve showing the pH versus volume of added base for the titration of 50.0 mL of 0.288 M HCl with 0.321 M NaOH. Clearly indicate the equivalence point.
14 Αυγ 2020 · As shown in Figure \(\PageIndex{2b}\), the titration of 50.0 mL of a 0.10 M solution of \(\ce{NaOH}\) with 0.20 M \(\ce{HCl}\) produces a titration curve that is nearly the mirror image of the titration curve in Figure \(\PageIndex{2a}\). The pH is initially 13.00, and it slowly decreases as \(\ce{HCl}\) is added.
Sorting out some confusing terms. When you carry out a simple acid-base titration, you use an indicator to tell you when you have the acid and alkali mixed in exactly the right proportions to "neutralise" each other. When the indicator changes colour, this is often described as the end point of the titration.
An acid-base titration is a fundamental process in analytical chemistry to determine the concentration of unknown acids or bases. It is based on the neutralization reaction, where an acid and a base react to form water and a salt.
Titration curves. Source: OpenStax Chemistry: Atoms First 2e. Strong Acid-Strong Base Titrations. When titrating a strong acid, such as hydrochloric acid with sodium hydroxide, you are reacting the HCl directly with NaOH. HCl(aq)+ NaOH(aq) → H2O(l)+ NaCl(aq) HCl (a q) + NaOH (a q) → H 2 O (l) + NaCl (a q)
The reaction is: 2 NaOH (s) + CO2 (g) →Na2CO3 (aq) + H2O (l) This means that solid reagent grade sodium hydroxide is not pure enough to weigh and use directly. Furthermore, the carbonate ion interferes in acid-base titrations because 1) it is a weak base, and 2) it tends to make the color change at the end point less sharp.
