The number of moles of acetone is 4.1 moles.
Let us recall that specific gravity refers to the ratio of the density of a substance to the density of water. Also noting that the density of water has been set to 1 g/mL, the density of the acetone solution is 0.784 g/mL.
Density = mass/volume
mass = Density * volume
mass = 0.784 g/mL * 300.0 mL
= 235.2 g
Number of moles = mass/molar mass
Molar mass of acetone = 58 g/mol
Number of moles of acetone = 235.2 g/ 58 g/mol
= 4.1 moles
Learn ore about density:https://brainly.com/question/15164682
#SPJ1
