A student wonders whether a piece of jewelry is made of pure silver. She determines that its mass is 3.25 g. Then she drops it into a 10 mL graduated cylinder partially filled with water and determines that its volume is 0.428 mL. Could the jewelry be made of pure silver?

Question

Chemistry

Issac Schmidt

14 August, 07:00

A student wonders whether a piece of jewelry is made of pure silver. She determines that its mass is 3.25 g. Then she drops it into a 10 mL graduated cylinder partially filled with water and determines that its volume is 0.428 mL. Could the jewelry be made of pure silver?

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Answers (1)

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Mathew Fleming · Answer 1

The jewelry is 2896.54_Kg/m^3 less dense than pure silver

Explanation:

Density of jewellery = (mass of jewellery) : (volume of jewellery)

=3.25g : 0.428mL = 0.00325Kg:0.000000428m^3 = 7583.46Kg/m^3

The density of silver is 10490_Kg/m^3 which is (10490 - 7583.46) 2896.54_Kg/m^3 more dense than the jewellery

The density of Silver [Ag]

The weight of Silver per cubic centimeter is 10.49 grams or the weight of silver per cubic meter is 10490 kilograms, that is the density of silver is 10490 kg/m³; at 20°C (68°F or 293.15K) at a pressure of one atmospheres.