trizma is a monoprotic acid with a pKa of 8.1. On the structure circle the group that you expect to be associated with the conjugate acid/base pair for the pka value.
a. You have 1.0 L of Trizma buffer at pH 8.6 that contains a total of 0.080 moles of Trizma. What fraction (or percentage) of the Trizma is protonated and what fraction (or %) is deprotonated?
b.Calculate the new pH when 0.010 moles of HCL is added to the buffer in question a above.
structure of Trizma is attached.