SOLUTION: One of Ms. Barney's students found a figurine in the school room closet. It looked like it was made of silver. Ms. Barney decided to make a math and science lesson out of this expe
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Question 402202: One of Ms. Barney's students found a figurine in the school room closet. It looked like it was made of silver. Ms. Barney decided to make a math and science lesson out of this experience. They wanted to determine if the figurine was pure silver. The class looked up the density of silver in their chemistry book and found that the density of silver was 10.5g/cm3. They weighed the figurine on the class balance scales and found that it weighed 300 grams. They dropped the figurine into a graduated cylinder of radius 4 cm. The water level rise 1.5 cm. Is the figurine pure silver? Justify your answer! Is the material of the figurine heavier or lighter per cm than silver? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! the density of silver was 10.5g/cm3.
They weighed the figurine on the class balance scales and found that it weighed 300 grams.
They dropped the figurine into a graduated cylinder of radius 4 cm.
The water level rose 1.5 cm. Is the figurine pure silver?
Justify your answer! Is the material of the figurine heavier or lighter per cm than silver?
:
Find the volume of the added level of the water when the object is dropped in it
V =
V = 75.4 cu/cm
:
Find the density of an object with a vol of 75.4 and a weight of 300 grams = 3.98 gr/cu cm, the material is much lighter
:
:
If the object was pure silver is should weigh:
75.4 * 10.5 ~ 792 grams
