Answer
$555\ g$
Work Step by Step
We use stoichiometry, making sure that all units cancel out to $cm^3$, to obtain:
$500\ mL = 500\ cm^3$
We use stoichiometry, making sure that all units cancel out to $g$, to obtain:
$500\ cm^3 \times 1.11\ g/cm^3=555\ g$