Identifying Metals By Density Lab Worksheet Page 2

IDENTIFYING U NKNOWN M ETALS B Y D ENSITY

5. Obtain 2 pieces of the irregularly shaped unknown metal and find their combined mass.

Combined mass of the two irregular pieces__________g

6. Using a 25 or 50ml graduated cylinder filled with 15.0ml of water, carefully place the

two pieces of metal into the cylinder. Record the final volume after getting rid of any

air bubbles.

7. Final water volume _______ml. Volume of 2 pieces (Final volume – 15ml) ________ml.

8. Determine the density of the unknown metal pieces. D=M/V ______________g/cm

9. By comparing the density of the irregularly shaped metal to those in table one above,

identify the irregularly shaped metal. ____________________________

PRACTICE PROBLEMS:

1. What is the volume of a copper cube given that its mass is 22.6g?

2. What is the length of an iron cube given that its mass is 55.0g?

3. A cube of aluminum measures 3.0cm on a side. What is its mass?

0 votes

Parent category: Education