Multiple choice The volume of a rock is 5 mL and the mass is 25 g, what is its density? 22 g/mL 5 g/mL 25 g/mL 7 g/mL Reveal answer Fill a bubble to check yourself B Correct answer Explanation Density is calculated as mass divided by volume. Here, 25 g / 5 mL = 5 g/mL.