HONORS CHEMISTRY – Happy use your brain day!! Can you now use what you’ve learned about density? Who is going to be your spokesperson? When is your lab going to be due? Do you need two due dates???
Can’t wait to “watch” you work!
Hon Chemistry 9-5-18 ID of Unknown Lab
Ok guys so calculate the density and then send the color of your block and it’s density on here
Does anybody know where a ruler might br
Thanks Caroline really appreciate it.
I got the clear block to be gamma
I agree with Goerge
All – Do you think you might ever want to come back and make additional measurements? How are you going to make that happen?
All – I mean, how will you make sure you have your original block?
Clear block- 1.21g/cm^3
Yellow block- 0.936 g/cm^3
Off white/milky – 0.936 g/cm^3
Everyone needs to post their results, even if someone else already has.
For the gray block I got 1.42 g/cm^3 which is the epsilon
I’m going to go in the morning when I get there and measure different blocks.
I got 0.948 g/cm^3 for the milky white block and 1.42 g/cm^3 for the gray block.
Alpha- Paper White at 0.559g/cm^3
Beta- Black at 0.965g/cm^3
Delta- Milky White at 0.868g/cm^3
Gamma- Clear at 1.17g/cm^3
Epsilon- not yet calculated but process of elimination- Grey
These are the answers that I personally got for the blocks so I’m going to measure the grey block on Monday morning and finalize that answer but until then I’m going to put my work in the reply section of this comment.
Work for Paper White
mass = 40.890 g
l = 11.22 cm
w = 3.45 cm
h = 1.89 cm
V = l * w * h
V = 11.22 cm * 3.45 cm * 1.89 cm
V = 73.16001 cm^3
D = m/V
D = 40.890 g / 73.16001 cm^3
D = 0.559 g/cm^3
=
Alpha
Work for Black
mass = 110.584071 g
l = 9.61 cm
w = 4.62 cm
h = 2.58 cm
V = l * w * h
V = 9.61 cm * 4.62 cm * 2.58 cm
V = 114.547356 cm^3
D = m/V
D = 110.584071 g / 114.547356 cm^3
D = 0.9654 g/cm^3
=
Beta
Work for Milky White
mass = 36.560 g
l = 7.23 cm
w = 4.55 cm
h = 1.28 cm
V = l * w * h
V = 7.23 cm * 4.55 cm * 1.28 cm
V = 42.10752 cm^3
D = m/V
D = 36.560 g / 42.10752 cm^3
D = 0.868 g/cm^3
=
Delta
Work for Clear
mass = 67.078 g
l = 8.49 cm
w = 5.59 cm
h = 1.20 cm
V = l * w * h
V = 8.49 cm * 5.59 cm * 1.20 cm
V = 56.95092 cm^3
D = m/V
D = 67.078 g / 56.95092 cm^3
D = 1.17 g/cm^3
=
Gamma
Final Results:
Clear Block
D = m/V
V = l * w * h
V = 8.39cm * 5.59cm * 1.19cm
V = 55.811119cm^3
m = 67.070g
D = 67.070g/55.811119cm^3
D = 1.20g/cm^3
=
Gamma
Milky White Block
D = m/V
V = l * w * h
V = 7.19cm * 4.49cm * 1.24cm
V = 40.031044cm^3
m = 36.574g
D = 36.574g/40.031044cm^3
D = 0.914g/cm^3
=
Delta
Revision to Final Answer:
Clear Block Density –
mass = 67.070 g
l = 8.39 cm
w= 5.59 cm
h = 1.19 cm
V = l x w x h
V = 8.39 cm x 5.59 cm x 1.19 cm
V = 55.811119 cm^3
D = m/V
D = 67.070 g / 55.811119 cm^3
D = 1.20 g/cm^3
=
Gamma
Milky White Block Density –
mass = 36.574 g
l = 7.19 cm
w = 4.49 cm
h = 1.24 cm
V = l x w x h
V = 7.19 cm x 4.49 cm x 1.24 cm
V = 40.031044 cm^3
D = m/V
D = 36.574 g / 40.031044 cm^3
D = 0.914 g/cm^3
=
Delta
Gray Block
m= 85.670 g
V=l x w x h
l= 7.37 cm
w= 3.45 cm
h= 2.38 cm
V=l x w x h
V= 7.37 cm x 3.45 cm x 2.38 cm
V= 60.51507 cm^3
D=m / V
D= 85.670 g / 60.51507 cm^3
D= 1.41568042 g/cm^3
D= 1.42 g/cm^3
Gray block= epsilon
I can go Monday morning and measure some blocks.
Gray Block
mass= 85.675 g
l= 7.39 cm
w= 3.31 cm
h= 2.45 cm
V=l*w*h
V= 7.39 cm * 3.31 cm * 2.45 cm
V=59.9 cm^3
D=m/V
D=85.675/59.9 cm^3
D= 1.43 g/cm^3
Milky White Block
Mass= 61.82 g
l=10.41 cm
w= 5.21 cm
h= 1.22 cm
V=l*w*h
V=10.41 cm * 5.21 cm * 1.22 cm
V= 66.2 cm^3
D=m/V
D=61.82 g/ 66.2 cm^3
D= 0.934 g/cm^3
Black Block Density:
l=12.72 cm
w=4.19 cm
h=1.28 cm
V=l x w x h
V=(12.72 cm) (4.19 cm) (1.28 cm)
V= 68.22 cm^3
m= 65.859 g
D= m/V
D= 65.859 g / 68.22 cm^3
D=0.965 g/ cm^3
Here are my measurements as well as calculations for volume and density for the black block:
l=6.45cm
w=7.09cm
h=1.16cm
V=lwh
V=6.45cm x 7.09cm x 1.16cm
V=53.0474cm^3=53.0cm^3
V=53.0474cm^3
m=77.891g
D=m/V
D=77.891g/53.0474cm^3
D=1.4683g/cm^3=1.47g/cm^3
These are my calculations for volume and density for the small clear block:
l= 4.0 cm
w= 2.10 cm
h= 4.30 cm
V= lwh
V= (4.0 cm) x (2.10 cm) x (4.30 cm)
V= 36.12 cm^3 = 36.1 cm^3
V= 36.12 cm^3
m= 49.659 g
D= m/V
D= (49.659 g) / (36.12 cm^3)
D= 1.375 g/cm^3
I believe my block is epsilon.
Clear Block Calculations
Mass of block= 67.070 g
l= 8.39 cm
w= 5.59 cm
h= 1.19 cm
V=l x w x h
V= 8.59 cm x 5.59 cm x 1.19 cm
V=55.811119 cm^3
D= m/v
D= 67.070 g / 55.811119 cm^3
D= 1.20173186 g/cm^3
D= 1.20 g/cm^3
Clear Block= Gamma
Milky White Block Calculations
l = 6.51 cm
w = 3.82 cm
h = 2.54 cm
V= lwh
V = (6.51 cm)(3.82 cm)(2.54 cm)
V = 63.2 cm^3
Mass (m) = 57.531 g
D= m/V
D = 57.531 g/ 63.2 cm^3
D= 0.91030063 g/cm^3
D= 0.910 g/cm^3
Delta block = 0.910 g/cm^3
Milky white block = delta
Black Block Calculations
Volume (V):
l = 7.66 cm
w = 5.19 cm
h = 2.53 cm
V = lwh
V = (7.66 cm)(5.19 cm)(2.53 cm)
V = 100. cm^3
Mass (m):
m = 100.729 g
Density (D):
D = m/V
D = (100.729 g)/(100. cm^3)
D = 1.01 g/cm^3
Beta Block = 0.967 g/cm^3
Black Block = Beta Block
Paper White Block Calculations
l = 7.30 cm
w = 7.70 cm
h = 1.89 cm
V = l x w x h
V = (7.30 cm)x(7.70 cm)x(1.89 cm)
V = 106.2369 cm^3
m = 56.9690 g
D = m/V
D = 56.9690 g/106.2369 cm^3
D = 0.5362449394 g/cm^3
D = 0.536 g/cm^3
Paper White = Alpha