Answer:
Firstly, Let's experiment this !
Experiment 1 :
159.446g - 124.966g = 34.48g
34.48g = The mass of Mineral oil.
The density of the mineral oil = M/V = 34.48g/40mL = 0.862g/cm³.
Experiment 2 :
124.966 + 18.173 = 143.139 = The mass of solid + cylinder.
124.966 + 50.952 = 175.918 = The mass of solid + cylinder + Mineral water.
175.918 - 143.139 = 32.779 = The mass of added mineral oil.
Explanation:
Now we have to find the volume of the added mineral oil using the density from experiment 1.
V = 32.779g/0.862g/cm³ = 38.02668213mL
Since we found the volume of the solid, we then have to subtract the added mineral oil volume from the total volume from experiment 1.
Volume of solid = 40-38.02668213 = 1.97331787mL
Density of solid = 18.713g/1.97331787mL = 9.483013499g/cm^3
1.97331787 = (4/3)(3.14)r³
1.97331787*(3/4)(3.14) = .4713338861
.4713338861 = r
³
r = 0.7782328425158433
r = 0.78
Now that's our final answer ! r = 0.78
