Why does the titration curve of a strong acid and strong base appear to have a buffer region, if strong acids and bases cannot act as buffers?
Explain why a buffer always consists of a weak acid and its conjugate base, rather than a strong acid and base?
What comprises a typical buffer system? A.A strong acid and a weak acid. B.A strong base and a weak base. C.A weak acid and a salt of that acid. D.A strong acid and a strong base.
Explain why the neutralization reaction of a strong acid and a weak base gives a weakly acidic solution.
Explain the relationship between the average moles of strong acid that must be added to change the pH of 25 mL of each buffer by one pH unit and the [Conj. base]/[Weak acid] ratio for the buffer. (What happens to the average number of moles of strong acid that must be added when the [Conj. base]/[Weak acid] ratio decreases? Why does the average number of moles of strong acid change as it does?)
please explain why it would be an effective buffer. also include why its an acid or base. hase o Chapter 17 Lecture Examples 1) Identify the solutions that would make an effective buffer. and base HC2H3Oz/NaC2H2O HCI/NaCl NH/NH4Cl KOH/H20 CH3NH2/CH3NH2Br HF/NaF HNO/KNO
Buffer capacity is a measure of a buffer solution's resistance to changes in pH as strong acid or base is added. Suppose that you have 155 mL of a buffer that is 0.280 M in both benzoic acid (CH,COOH) and its conjugate base (CH,COO-). Calculate the maximum volume of 0.370 M HCl that can be added to the buffer before its buffering capacity is lost. 117.3
How does a buffer resist change in pH upon addition of a strong acid? The strong acid reacts with the weak base in the buffer to form a weak acid, which produces few H + ions in solution and therefore only a little change in pH. The strong acid reacts with the weak acid in the buffer to form a weak base, which produces few H+ ions in solution and therefore only a little change in pH. The strong acid...
Buffer solutions are comprised of two components. What are they? A strong base and a weak base A strong acid and its conjugate base A weak acid and its conjugate base O A strong acid and a strong base A strong acid and a weak acid
Strong base is dissolved in 635 mL of 0.600 M weak acid (K, = 3.03 x 10-5) to make a buffer with a pH of 4.08. Assume that the volume remains constant when the base is added. HA(aq) + OH(aq) →H,O(1) + A (aq) Calculate the pK, value of the acid, and determine the number of moles of acid initially present. pk = initial armount: initial amount: mol HA When the reaction is complete, what is the concentration ratio of...