Density of Metals Lab

Density of Metals Lab

1. Purpose
The purpose of this lab was answered in 4 questions, and their answers are here shown. The density of the metals we used were 5g/cm3. The density of a metal piece does not depend on its size, it depends on the total mass and total volume. The most accurate way of determining density is dividing mass by volume. You can’t identify metals by their density. It can help you narrow the options down, but you can’t identify a metal by using only its density.
2. Question
Can we find out the density of a metal only using water?
3. Variables
Independent Variable(s): Temperature (27ºC); Mass (5g)
Dependent Variable: Density of Metals
4. Pre-Lab Questions
a) 43 cm3
b) 73 cm3
1. 30 cm3
2. 3.43 cm3
3. Its density is 7.131 g/cm3
5. Materials
Metal A (Zinc)
50cm3 measuring cylinder
25cm3 measuring cylinder
250cm3 beaker
Glass Water
Tap Water
Balance
6. Procedure
Find the mass of the watch glass
Put the copper piece on the watch glass and find their mass
Fill a 50cm3 graduated cylinder with enough water that you think will completely cover Metal A and record this volume in the data table
Fill a 25cm3 graduated cylinder with enough water that you think will completely cover Metal A and record this volume in the data table
Fill a 250cm3 beaker with enough water that you think will completely cover Metal A and record this volume in the data table
Carefully slide Metal A down the side of the 50cm3 graduated cylinder so as to not crack the bottom of the cylinder. Record the volume of the water with Metal A submerged in it
Empty the graduated cylinder, dry off Metal A, and repeat steps #1-4 for the other cylinder and the beaker
Complete the calculations 1 and 2, then report those amounts. Also record your mass on the class data table.
7. Data

50cm3 measuring cylinder
25cm3 measuring cylinder
250cm3 beaker
Mass of Metal
5g ; 5g ; 5g
5g ; 5g ; 5g
5g ; 5g ; 5g
Volume of Water Alone
20cm3 ; 20cm3 ; 20cm3
20cm3 ;