Final answer:
To calculate the mass of a marshmallow, the volume in cubic inches is converted to cubic centimeters and then multiplied by the density. The calculated mass of the marshmallow is approximately 9.92 grams, which is not present in the given answer choices.
Step-by-step explanation:
The student's question revolves around determining the mass of a large marshmallow given its volume and density. First, we must convert the volume from cubic inches to cubic centimeters using the conversion factor provided (1 in³ = 16.39 cm³). Since the marshmallow has a volume of 2.50 in³, in cubic centimeters, this would be 2.50 in³ × 16.39 cm³/in³ = 40.975 cm³. Next, we use the given density of the marshmallow to calculate its mass by multiplying the density by the volume: mass = density × volume. The density given is 0.242 g/cm³. Therefore, the mass of the marshmallow in grams would be 0.242 g/cm³ × 40.975 cm³ = 9.91615 g, which we can round to approximately 9.92 g. This is not one of the answer choices provided by the student, indicating a possible error or misunderstanding in either the values provided or the answer options.