Question

A chef is attempting to make a dessert drink that has distinctly separated ingredients. They add coffee, whole milk, and maple syrup to a cup, but they would like to have one more ingredient added that would sink to the bottom of the cup. The table shows the density of each ingredient.



A cylindrical glass shows three distinct layers of liquid, labeled from top to bottom as Coffee, Whole Milk, and Maple Syrup. At the bottom is an unlabeled layer indicated by two question marks. Each layer is visually separated, indicating different densities.
Ingredient Density (g/mL)
Coffee 0.65
Whole Milk 1.04
Maple Syrup 1.37


Using the equation for density,

, assess which ingredient they could use to fill the very bottom of the cup.

Responses
A 9 mL ice with a mass of 10 g9 mL ice with a mass of 10 g
B 5 mL water with a mass of 5 g5 mL water with a mass of 5 g
C 4 mL chocolate syrup with a mass of 6 g4 mL chocolate syrup with a mass of 6 g
D 12 mL cinnamon milk with a mass of 5 g

Answer 1

Density = mass/volume. Calculate each:

- A: 10 g / 9 mL = 1.11 g/mL
- B: 5 g / 5 mL = 1.00 g/mL
- C: 6 g / 4 mL = 1.50 g/mL
- D: 5 g / 12 mL ≈ 0.42 g/mL

Only the chocolate syrup (1.50 g/mL) is denser than the maple syrup (1.37 g/mL), so it would sink to the very bottom. Answer: C.