A buffer is made by combining 3.50 L of 0.200M butylamine, C4H9NH2 with 7.50L of 0.100M butylammonium chloride, C4H9NH3Cl. Assuming that volumes are additive, calculate the following.
A) the pH of the buffer. B) the pH of the buffer after the addition of 35.0mL of 0.080M NaOH to the 525.mL of the buffer.