Answer
Please see the work below.
Work Step by Step
We know that
$Moles=Volume\times Molarity$
We plug in the known values to obtain:
$5.5\times 0.035=0.1925 \space moles$
$Molar \space mass\space of KOH=56$
and $Mass=moles\times Molar\space mass$
We plug in the known values to obtain:
$Mass=0.1925\times 56=10.78g$
