Initial Cost Estimates For The Iraq War Were Almost Too Low To Believe. The U.S. will shell out somewhere as much as $6 trillion dollars for the Iraq War, once all is said and done, according to a recent report out of Brown University. According to Reuters, that figure includes $1.7 trillion spent so far with an additional $490 billion in benefits.
Best Answer: A solution has the greatest buffering capacity when the concentration of the weak acid is = at the concentration of its conjugate base. In this case i thing that the correct answer is c. Source(s): Dr.A Â· 6 years ago.
1 So, you can prepare a buffer at pH 2 or pH 7, for example, but pH 9 would be pushing it. 2  Use the Henderson-Hasselbach equation to calculate how much acid and base you need. 3  You can simplify the calculation if you make 1 liter of buffer. 4  Select the pKa value that is closest to the pH of your buffer. Use the Henderson-Hasselbach equation to calculate how much acid and base you need. 2  You can simplify the calculation if you make 1 liter of buffer. 3  Select the pKa value that is closest to the pH of your buffer.