Answer:
31.345 cm³
Explanation:
Given:
Mass of the empty flask, m = 56.12 g
Mass of the flask filled with water, M = 87.39 g
Density of the water, ρ = 0.9976 g/cm³
now,
the mass of water filled in the flask, Mw = M - m = 87.39 - 56.12 = 31.27 g
also,
Density = mass / volume
thus, for water
0.9976 = 31.27 / volume
or
volume of water = 31.345 cm³
hence, the volume of flask is the volume of water filled = 31.345 cm³