density= 33.3/30=1.11g/ml
Experiment 3: Find the Density of Various Metals
***Iron
2, 2,balance empty cylinder =54g
3, cylinder plus 30.00 ml water and the volume of water = 84.00g
4, Add 5.000 g of iron (Fe) = 89.00g
+ + total volume of the water and iron in the graduated cylinder=30.64ml
5, a, Add another 5.000 g of iron (Fe) (total 10g) total mass of iron = 94.00g
+ + total volume of the water and iron in the graduated cylinder=31.27ml
b, Add another 5.000 g of iron (Fe) (total 15g) total mass of iron = 99.00g
+ + total volume of the water and iron in the graduated cylinder=31.91ml
c, Add another 5.000 g of iron (Fe) (total 20g) total mass of iron = 104.00g
+ + total volume of the water and iron in the graduated cylinder=32.54ml
d, Add another 5.000 g of iron (Fe) (total 25g) total mass of iron = 109.00g
+ + total volume of the water and iron in the graduated cylinder=33.18ml
***aluminum (Al)
2, 2,balance empty cylinder =54g
3, cylinder plus 30.00 ml water and the volume of water = 84.00g
4, Add 5.000 g of aluminum (Al) = 89.00g
+ + total volume of the water and aluminum (Al) in the graduated
cylinder=31.85ml
5, a, Add another 5.000 g of aluminum (Al) (total 10g) total mass of
aluminum (Al)= 94.00g
+ + total volume of the water and aluminum (Al) in the graduated
cylinder=33.70ml
b, Add another 5.000 g of aluminum (Al) (total 15g) total mass of aluminum
(Al) = 99.00g
+ + total volume of the water and aluminum (Al) in the graduated
cylinder=35.56ml
c, Add another 5.000 g of aluminum (Al) (total 20g) total mass of aluminum
(Al) = 104.00g
+ + total volume of the water and iron in the graduated cylinder=37.41ml

d, Add another 5.000 g of aluminum (Al) (total 25g) total mass of aluminum
(Al) = 109.00g
+ + total volume of the water and aluminum (Al) in the graduated
cylinder=39.26ml
Experiment 4: Identify an Unknown Metal
2, 2,balance empty cylinder =54g
3, cylinder plus 30.00 ml water and the volume of water = 84.00g
4, Add 10.000 g of Unknown Metal = 94.00g
+ + total volume of the water and Unknown Metal in the graduated
cylinder=31.40ml
5, a, Add another 5.000 g of Unknown Metal (total 15g) total mass of
Unknown Metal= 99.00g
+ + total volume of the water and Unknown Metal in the graduated
cylinder=32.10ml
b, Add another 5.000 g of Unknown Metal (total 20g) total mass of Unknown
Metal = 104.00g
+ + total volume of the water and Unknown Metal in the graduated
cylinder=32.80ml
c, Add another 5.000 g of Unknown Metal (total 25g) total mass of Unknown
Metal = 109.00g
+ + total volume of the water and Unknown Metal in the graduated
cylinder=33.50ml
Question:
What was the mass of the first 10.00 mL of water added?

Question:
You measured the mass of three different volumes of ethanol. What was the total volume of
ethanol used for each of the three mass measurements?

10.00 mL, 20.00 mL, 30.00 mL
Question:
What was the mass of 30.00 mL ethanol?

Question:
Given the data you collected for the volume of water displaced by 20.000 g of iron, what is the
density of iron?

Question:
Below is a graph of mass versus volume for iron. The density of iron is equal to the slope of the
graph.