t3 1000 km乂IS00 m'x10m-,500,000 m3 25 worng ,1500,000)p5 25) The paper used in Post-lt-Notes has a density of 0.82 g/cm3, One Post-t-Note has a mass of 0.767 g and it can be considered a box with the surface a rectangle measuring 6.2 cm X 12.7 cm. What is the thickness of this paper in cm? wwrV(Post-it-Note) = Mass of Post-It-Note 1 cm3

A copper wire (density = 8.96 g/cm3) has a diameter of 0.25 mm. If a sample of this copper wire has a mass of 22 g, how long is the wire?

At 25 C the density of water is 0.997 g/mL, whereas the density of ice at 10 C is 0.917 g/mL. (a) If a plastic soft-drink bottle (volume = 250 mL) is completely filled with pure water, capped, and then frozen at 10 C, what volume will the solid occupy? (b) What will the bottle look like when you take it out of the freezer?

The active ingredient of aspirin tablets is acetylsalicylic acid, which, has a density of 1.4 g/cm3. In a lab class, a student used paper chromatography to isolate another common ingredient of headache remedies. The isolated sample had a mass of 0.384 g and a volume of 0.32 cm3. Given the data in the following table, what was the other ingredient in the headache remedy? Density Values for Potential Headache Remedies Compound Density (g/cm3) White table sugar 0.70 Caffeine 1.2 Acetylsalicylic acid 1.4 Sodium chloride 2.2