You may print this sheet, if you wish, but it is not
necessary. Please show work carefully and clearly put a box
around the final result of your calculation. This means
that every conversion factor must be shown and you must
show the units that cancel out. Scan your work and submit
it as a PDF. Problems are 10 points each. For completing
the assessment you earn a 70. The bonus question is worth 5
extra points and it is permitted to earn up to 105.
Find the density of a material which has a mass of 42.0 g and a volume of 44.68 cm3.
You do not have a laboratory balance handy, but you do have a graduated cylinder. You use it to find the volume of a sample of iron by filling it with water, reading the volume, adding the iron, and reading the volume again.
What is the volume of the sample of iron if the water had a volume of 15.3 mL before the iron was added and the volume rose to 23.1 mL?
The density of iron is 7.874 g/cm3. What is the mass of a sample of iron with the volume you just calculated?
The density of copper is 8.94 g/cm3. You have a piece of copper that has a mass of 50.2 g. What is the volume of this piece of copper in cubic centimeters?
Bonus: Find the density of a material in the units of grams per cubic centimeter (g/cm3) when the mass is 257 g and the volume is 1.754 in3. One inch is equal to 2.54 cm.
Also, what material is the substance in this question made of? Base your guess off of the density you calculate.
Did you remember to show your work properly? It is important to learn to do so. Being able to show your work means being able to think by writing. This expands what we are able to think.