$($f$)$ Buffers resist $pH$ changes when $H^{+}$or $O{H}^{-}$is added. Record the change in $pH$ below.

$($i$)$ When $10\mathrm{.}0mL$ of $0\mathrm{.}10MHCl$ were added to the original buffer, the $pH$ changed from

to

$($ii$)$ When $10\mathrm{.}0mL$ of $0\mathrm{.}10$MNaOH were added to the original buffer, the $pH$ changed

from to

$($iii$)$ Summarize your results using the words: increased or decreased.

Addition of $H^{+}$to the original buffer

the $pH$ by a small amount.

Addition of $O{H}^{-}$to the original buffer

the $pH$ by a small amount.