Answer
7.99 g/$cm^{3}$
Work Step by Step
Mass = 147.8 g
Volume = 48.5 mL - 30.0 mL = 18.5 mL
Density = $\frac{Mass}{Volume} = \frac{147.8g}{18.5mL}$ = 7.99 g/mL = 7.99 g/$cm^{3}$ (as 1 mL = 1 $cm^{3}$)
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.