a brain weighing 1.0 Ib occupies a volume of 620 ml. What is the specific gravity of the brain?

Answer 1

1 lb = 454 grams (approximately). You can look it up if you want more accuracy (for example 453.59 g).
density = mass/volume. Substitute and solve.

Answer 2

lmlLl

Answer 3

454g/620mL=0.73

Answer 4

454g/620mL=0.73 g/mL

Answer 5

I send that everything have specific gravity why we find?