Mass of sample = $238.992 g$
Work Step by Step
Molar mass of Sb = $183.84 g/mol$ Amount of sample = $1.3 mol $ Hence, mass of sample = molar mass $\times$ amount in mol = $$183.84 g/mol\times1.3 mol = 238.992 g$$
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.