Question: A 100.0-mL buffer solution is 0.100 M in NH 3 and 0.125 M in NH 4 Br. What mass of HCl can this buffer neutralize

A 100.0-mL buffer solution is 0.100 M in NH₃ and 0.125 M in NH₄Br. What mass of HCl can this buffer neutralize before the pH falls below 9.00? If the same volume of the buffer were 0.250 M in NH₃ and 0.400 M in NH₄Br, what mass of HCl could be handled before the pH fell below 9.00?

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