WebMar 10, 2016 · To form an effective buffer solution you need roughly equal concentrations of the acid and conjugate base, hence that is why it says it is a buffer when half of the acid is titrated. However anywhere near that region can be considered as a buffer. Generally a solution is a buffer if the pH is within +/- 1 of its pKa. Web88% (8 ratings) Q.1: Because strong acids or bases are completely dissociated and there is no more undissociated acid or base that can react with the added base or acid. Q.2: G …. View the full answer. Transcribed image text: 1. Explain why a strong acid or base cannot be used to make a buffer. 2.

10.5: Buffers - Chemistry LibreTexts

WebAn example of this method of preparing buffer solutions can be given by the preparation of a phosphate buffer by mixing HPO 4 2- and H 2 PO 4-. The pH maintained by this solution is 7.4. Handerson-Hasselbalch Equation Preparation of Acid Buffer. Consider an acid buffer solution, containing a weak acid (HA) and its salt (KA) with a strong base(KOH). WebYou'll get a detailed solution from a subject matter expert that helps you learn core concepts. See Answer. Question: You can make a buffer with which of the following? A. Strong acid and conjugate base B. Weak base and its salt C. Strong base and conjugate acid D. Weak base and conjugate base. bjc headquarters address

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WebAnswer: Yes. The only requirement for a buffer is the presence of a weak acid or a weak base and it’s conjugate. When you mix a strong acid with a weak base, you will convert an equimolar amount of the weak base into it’s conjugate acid form. For example, if you added 2.5 moles HCl (strong acid... WebA buffer is a solution that resists changes in pH, and it generally consists of a weak acid and its conjugate base. There are two ways of making a buffer solution. The first way is to start with an aqueous solution of a weak acid … WebK4 for acetic acid is 1.7 105 at 25C. A buffer solution is made by mixing 52.1 mL of 0.122 M acetic acid with 46.1 mL of 0.182 M sodium acetate. Calculate the pH of this solution at 25C after the addition of 5.82 mL of 0.125 M NaOH. arrow_forward. date time comparison in python