Answer
Please see the work below.
Work Step by Step
We know that $1.128g\space BaSO_4\times \frac{1mol\space BaSO_4}{233.40g\space BaSO_4}\times \frac{1mol\space BaCl_2}{1mol\space BaSO_4}=0.0048329mol \space BaCl_2$
$molarity=\frac{0.0048329}{0.0500}=0.096658M$