Question

density inquiry lab
reflection questions:

1. describe the process you used to calculate density. what tools do you need to

determine the density of an unknown liquid?
type answer here

1. if given an acrylic density cube with a known density of 1.19 g/cm³, what would you

expect to happen if it were placed in vegetable oil? what would you expect to happen
if it were placed in honey?
in vegetable oil, the cube would... type answer here
in honey, the cube would... type answer here

Explanation:

Question 1

To calculate density, we use the formula \(
ho = \frac{m}{V} \), where \(
ho \) is density, \( m \) is mass, and \( V \) is volume. For an unknown liquid, first, measure the mass of an empty graduated cylinder using a balance. Then, pour the liquid into the cylinder and measure the combined mass (subtract the cylinder's mass to get the liquid's mass). The volume is read from the graduated cylinder. Tools needed: balance (for mass), graduated cylinder (for volume).

First, recall the density of vegetable oil (typically around \( 0.92 - 0.93 \, \text{g/cm}^3 \)) and the cube's density (\( 1.19 \, \text{g/cm}^3 \)). Since the cube's density (\( 1.19 \, \text{g/cm}^3 \)) is greater than vegetable oil's density, the cube will sink (objects with higher density than the fluid sink).

Honey has a density around \( 1.36 \, \text{g/cm}^3 \) (or higher). The cube's density is \( 1.19 \, \text{g/cm}^3 \), which is less than honey's density. So the cube will float (objects with lower density than the fluid float).

Answer:

To calculate density, use the formula \(
ho = \frac{m}{V} \) (density = mass/volume). For an unknown liquid, measure the mass of the liquid (using a balance: mass of cylinder + liquid minus mass of empty cylinder) and its volume (using a graduated cylinder). Tools: balance (to find mass) and graduated cylinder (to find volume).

Question 2 (In vegetable oil)