Why can carbonate with a PKA of 6.1 serve as a physiological buffer even though it is more than one PKa unit away from the typical physiological pH of 7.4?
Why can carbonate with a PKA of 6.1 serve as a physiological buffer even though it...
Tris buffers are commonly used in biochemistry labs because they buffer within the physiological range of 7.1 to 9.1 due to a pKa of 8.1. To demonstrate the buffering capacity of Tris buffer, your biochemistry lab teaching assistant has given you one liter of a 0.1 M Tris buffer at pH 7.4. Add 2 mL of 1M HCl to this buffer and calculate what the new pH will be.
Phosphoric acid (structure shown below) is a common acid used in buffer solutions. Even though the structure shows three equivalent hydrogen atoms, there are three different pKa values associated with the compound (pKa1 ≈ 2, pKa2 ≈ 7, pKa3 ≈ 12). Why do the three hydrogen atoms have different pKa values? How many of the hydrogen atoms will be removed in a buffer solution at pH 4? OH HO-P-OH
Please explain Buffer Effectiveness: Buffer Range and Buffer Capacity. Below you will find key questions. 1.Know and understand that the buffer capacity is optimal when the ratio of acid and conjugate base differs by less than or equal to a factor of 10. 2.Know and understand that a buffer is more resistant to pH changes when the concentrations of acid and base are relatively large. 3.Know and understand that an effective buffer covers a pH range one unit above and...
Why is titanium more reactive than zirconium even though it has a lower ionization energy?
In this lab, we will observe how weak acid solutions can work as a buffer. In this context, "buffer" refers to a solution that maintains a nearly constant pH, which is essential for biological systems to function properly. For example, the pH of human blood varies only slightly between the values of 7.35-7.45. Which of the following statements is true regarding the "buffer" in this context? "Buffer" refers to any solution that contains acid and base. All buffers can maintain...
why/how can bacteria perform glycolysis even though they lack membrane-bound organelles?
Explain why different cells can perform different functions even though they have identical organelles
Why is the ratio of the flow rate more than 2 even though the larger tube is only twice the diameter of the small tube
You’re studying proteins and the effect of pH on those proteins. For that purpose you are going to make two buffers. First, how would you prepare a 2L of a 10 mM Phosphate buffer at pH of 7.4? You have – Solid KH2PO4 Solid K2HPO4 10M KOH (as much as you need) purified water pH meter balance, glassware and anything else you need. The three pKa values for phosphoric acid (from the CRC Handbook of Chemistry and Physics) are 2.16,...
Explain clearly why the hydrogen economy has not taken-off, even though hydrogen has 3-times more energy per gram than gasoline?