Question

How many liters of wine can be held in a wine barrel whose capacity is 30.0 gal? You had been given a new penny to test if it is made up of pure copper or not. You measured the mass of the penny which was 2.49 g. You then find that the penny displaces 0.349 cm3 of water. Is the penny made of pure copper? (Density of pure copper = 8.96 g/cm3)

Answer 1

The first step in this calculation is to know how many liters is equal to 1 gallon, and the value is 3.785 liters, so now we have to make the following calculation:

1 gal = 3.785 Liters

30.0 gal = x Liters

x = 3.785 * 30.0

x = 114 Liters