Question

A large piece of jewelry has a mass of 132.6 g. A graduated cylinder initially contains 48.6 mL water. When the jewelry is submerged in the graduated cylinder, the total volume increases to 61.2 mL.
(a) Determine the density of this piece of jewelry.
(b) Assuming that the jewelry is made from only one suvstance, what substance is it likely to be? Explain

Answer 1

Answer: a) The density of the jewelry will be  $0.573g/cm^3$

b) The element is silver.

Explanation:

Density is defined as the mass contained per unit volume.

$Density=\frac{mass}{Volume}$

Given : Mass of jewelry = 132.6  grams

Volume of jewelry = volume of water displaced = $(61.2-48.6)=12.6ml$

Putting in the values we get:

$Density=\frac{132.6g}{12.6ml}=10.52g/ml$

Thus density of the jewelry will be $10.52g/ml$

As density is characteristic of a particular material , the material must be silver which has a density of 10.5 g/ml.