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Solved: A student is given a crucible and asked to prove
Chapter 1, Problem 73P(choose chapter or problem)
A student is given a crucible and asked to prove whether it is made of pure platinum. She first weighs the crucible in air and then weighs it suspended in water (density = 0.9986 g/mL). The readings are 860.2 g and 820.2 g, respectively. Based on these measurements and given that the density of platinum is \(21.45\mathrm{\ g}/\mathrm{cm}^3\), what should her conclusion be? (Hint: An object suspended in a fluid is buoyed up by the mass of the fluid displaced by the object. Neglect the buoyance of air.)
Questions & Answers
QUESTION:
A student is given a crucible and asked to prove whether it is made of pure platinum. She first weighs the crucible in air and then weighs it suspended in water (density = 0.9986 g/mL). The readings are 860.2 g and 820.2 g, respectively. Based on these measurements and given that the density of platinum is \(21.45\mathrm{\ g}/\mathrm{cm}^3\), what should her conclusion be? (Hint: An object suspended in a fluid is buoyed up by the mass of the fluid displaced by the object. Neglect the buoyance of air.)
ANSWER:Step 1 of 3
Here we have to find out the crucible is made of platinum or not.