Data:
m (mass) = ?
d (density) = 7.87 g/mL
v (volume) = 3.00cm4.00cm1.00cm = 12 cm³ = 12mL
Note: 1 cm³ = 1 mL
Formula:
\(d = \frac{m}{v} \to\:m = d*v\)
Solving:
\(m = d*v\)
\(m = 7.87 g/\diagup\!\!\!\!\!m\diagup\!\!\!\!\!L * 12\diagup\!\!\!\!\!m\diagup\!\!\!\!\!L\)
\(\boxed{\boxed{m = 94.44\:g}}\end{array}}\qquad\quad\checkmark\)
