Lauren S. answered 02/20/21
Experienced Middle and High School Tutor
You can solve this problem easily if you remember that Density = mass/volume.
Since you know the density is 2.70 and the volume is 41.5, rearrange the formula so that:
Mass = density x volume.
Mass = 2.70 g/cm3 x 41.5 cm3
Mass = 112.05 g
If you'd like an easier, more visual method to solving these problems using the density formula, I'd be happy to set up a private tutoring session and explain more.