Question

A manager is training a food worker on receiving and properly storing time and temperature control for safety food that are received after hours. How would you find the density of a gallon of milk?

A) Convert a gallon into cubic centimeters and then subtract the mass of the gallon of milk.
B) Convert a gallon into cubic centimeters and then divide by the mass of the gallon of milk.
C) The mass of the gallon of milk divided by the number of cubic centimeters in a gallon.
D) Find the mass of the gallon of milk and then multiply by the number of cubic centimeters in a gallon.

Answer 1

To find the density of a gallon of milk, divide its mass by its volume in cubic centimeters (option C). This calculation will yield the density in grams per cubic centimeter.

Step-by-step explanation:

The density of a gallon of milk is found by dividing the mass of the milk by its volume. The correct option to determine the density is C, the mass of the gallon of milk divided by the number of cubic centimeters in a gallon. A gallon can be converted into cubic centimeters because 1 gallon is approximately equal to 3785.41 cubic centimeters. To find the density, you do not multiply or subtract, but simply divide the mass by this volume.

For example, if you have a gallon of milk that weighs 3.785 kilograms (which is equivalent to 3785 grams, as there are 1000 grams in a kilogram), you would calculate the density as follows:

Density = Mass in grams (3785 g) / Volume in cubic centimeters (3785.41 cc)

Through this calculation, you'll get the density of milk in grams per cubic centimeter (g/cm3), which is a common unit of density in a laboratory setting.