In: Chemistry
A 100.0 −mL buffer solution is 0.105 M in NH3 and 0.135 M in NH4Br.
A. What mass of HCl could this buffer neutralize before the pH fell below 9.00
B. If the same volume of the buffer were 0.265 M in NH3 and 0.390 M in NH4Br, what mass of HCl could be handled before the pH fell below 9.00?
I know for A i have tried .19g, .0915, and .5`3 using three different methods. I have no idea what to do now.