Question

Calculate the density of a sample of oil in a bottle. The mass of the bottle alone is 116g. The mass of the oil and the bottle is 197g. The bottle holds 105mL of oil.

A) 0.99 g/mL
B) 1.81 g/mL
C) 1.16 g/mL
D) 1.87 g/mL

Answer 1

The density of the oil is calculated by subtracting the mass of the empty bottle from the total mass of the bottle with oil, and then dividing by the volume of the oil. It comes out to be 0.771 g/mL.

Step-by-step explanation:

To calculate the density of a sample of oil in a bottle, you need to know the mass of the oil and the volume it occupies. First, you have to find the mass of the oil alone by subtracting the mass of the empty bottle from the total mass of the bottle with oil. The mass of the oil is 197g (oil + bottle) - 116g (bottle alone) = 81g. The volume of the oil is given as 105mL. Density is mass divided by volume, so the density of the oil is 81g ÷ 105mL, which equals 0.771 g/mL.