1. Q1 A sample containing 8.840 g of metal pellets was poured into a graduated cylinder initially
containing 11.86 mL of water, causing the water level in the cylinder to rise to 18.53 mL. What
is the density, in g/mL, of the metal?
Q2 A sample containing 6.65 g of metal pellets was poured into a graduated cylinder initially
containing 11.16 mL of water. Given the density of the material was 4.9 g/mL, to what level did
the water in the cylinder rise?
Solution
1)
volume of metal = change in water level
= 18.53 mL - 11.86 mL
= 6.67 mL
mass of metal = 8.840 g
use:
density = mass / volume
= 8.840 g / 6.67 mL
= 1.325 g/mL
Answer: 1.325 g/mL
2)
volume of meta = mass / density
= 6.65 g / (4.9 g/mL)

2. = 1.36 mL
Now use:
volume of metal = change in water level
volume of metal = final level - initial level
1.36 = final level - 11.16
final level = 12.52 mL
Answer: 12.52 mL