Web2 feb. 2024 · Phenolphtalein Solution The correct answer is C. In the titration of a weak acid with a strong base, the conjugate base of the weak acid will make the pH at the equivalence point greater than 7. Therefore, you would want an indicator to change in that pH range. WebStrong acids and bases ionize completely in aqueous solution, while weak acids and bases ionize only partially in aqueous solution. The conjugate base of a Brønsted-Lowry acid is …
2.4: Strong Acids and Strong Bases - Chemistry …
Web29 jan. 2024 · Ionization of Weak Acids The reaction symbol for a strong acid ionizing in water is a simple arrow facing from left to right. On the other hand, the reaction arrow for a weak acid ionizing in water is a double arrow, indicating that both the forward and reverse reactions occur at equilibrium. Web4 nov. 2024 · Weak bases should be titrated in the presence of indicators which change under slightly acidic conditions. Common Acid-Base Indicators Several acid-base indicators are listed below, some more than once if they can be used over multiple pH ranges. The quantity of indicator in aqueous (aq.) or alcohol (alc.) solution is specified. small claims court limit west virginia
Acidity of Phenols - Chemistry LibreTexts
WebAmong the drugs diazepam (weak base, pKa 3.3), oxacillin (weak base, pKa 2.8) and phenol (weak acid, pKa 9.9), which drug will be most highly ionized at a pH of 7.4? A: … WebAmong the drugs diazepam (weak base, pKa 1.3), oxacillin (weak base, pKa 2.8), phenol (weak acid, pKa 9.9), and morphine (amphoteric, amine pKa 8.0, phenol pKa 9.6), which is the most highly ionized at a pH of 7.4? This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. WebSulfuric acid is the strongest acid on our list with a pK a value of –10, so HSO 4- is the weakest conjugate base. You can see that hydroxide ion is a stronger base than ammonia (NH 3 ), because ammonium (NH 4+, pK a = 9.2) is a stronger acid than water (pK a = 14.00). The stronger the conjugate acid, the weaker the conjugate base. small claims court linn county