Isopropyl acetate has a density of 0.87 grams per centimeter cubed (g/cm³). Alexei wants to know if his unknown object will float or sink in isopropyl acetate. The object has a mass of 15 g and a volume of 18 cm³. Explain what will happen when Alexei places the object in the isopropyl acetate? Show your work. a. The object will float because its density is less than that of isopropyl acetate. b. The object will sink because its density is greater than that of isopropyl acetate. c. The object will neither float nor sink but remain suspended. d. The object will dissolve in isopropyl acetate.
To determine if the object will float or sink in isopropyl acetate, we need to compare the density of the object with the density of isopropyl acetate.
The density of the object is calculated by dividing its mass by its volume:
Density of the object = mass/volume = 15 g / 18 cm³ ≈ 0.833 g/cm³
Since the density of the object (0.833 g/cm³) is less than the density of isopropyl acetate (0.87 g/cm³), the object will float in isopropyl acetate.
Therefore, the correct answer is:
a. The object will float because its density is less than that of isopropyl acetate.