Final answer:
The density of the rubber stopper is calculated using the formula density = mass/volume, which gives a result of 1.242 g/mL.
Step-by-step explanation:
The question asks us to calculate the density of a rubber stopper based on its mass and the volume of water it displaces. To find the density of the rubber stopper, we use the formula density = mass/volume. Given that the mass of the rubber stopper is 7.452 g and it displaces 6.0 mL of water, we calculate the density by dividing the mass by the volume.
In this case, the mass of the rubber stopper is 7.452 g and the volume it displaces is 6.0 mL. So, the density would be:
Density = 7.452 g/6.0 mL = 1.242 g/mL
The density of the rubber stopper is 1.242 g/mL.
Therefore, the density of the rubber stopper is 7.452 g ÷ 6.0 mL, which equals 1.242 g/mL. This is how you would typically calculate the density of an object using water displacement method as outlined in Example 2.6.4 and the other examples provided.