Answer
$V = 50~mL$
Work Step by Step
We first find the volume in units of $m^3$.
$V = \frac{M}{\rho}$
$V = \frac{0.055~kg}{1100~kg/m^3}$
$V = 5.0\times 10^{-5}~m^3$
We then convert the volume to units of mL.
$V = (5.0\times 10^{-5}~m^3)(\frac{10^6~mL}{1~m^3})$
$V = 50~mL$
