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.
The buffer capacity is also greatest when the concentrations of the conjugate acid and base are equal. In this case pH buffer = pK a. and the buffer is positioned in the middle of its buffering range. The pH range in which a buffer solution is effective is generally considered to be Â±1 of the pK a value.