General Chemistry Lab I-DAX-DL01

Density Problem Set Due 9/28/18

Only one set of answers per team Question 1

2) A 50.0-g silver object and a 50.0-g gold object are both added to 75.5 mL of water contained in a graduated cylinder. What is the new water level, in milliliters, in the cylinder? You will need to find the densities of the objects. 3) A mouthwash is 21.6% ethanol by mass. If each bottle contains 0.358 pt of mouthwash with a density of 0.876 g/mL, how many kilograms of ethanol are in 180 bottles of the mouthwash? 4) A new penny has a mass of 2.49 g and a volume of 0.349 cm3. Is the penny pure copper? Question 5

6) A hybrid SUV consumes fuel at a rate of 12.8 km/L. How many miles can the car travel on 22.5 gal of gasoline? 7) You measure the masses and volumes of two cylinders. The mass of cylinder 1 is 1.35 times the mass of cylinder 2. The volume of cylinder 1 is 0.792 times the volume of cylinder 2. If the density of cylinder 1 is 3.85 g/cm3 , what is the density of cylinder 2?