Question

You go to a jewelry store to buy a gold chain. The chain is $2,000. You want to make sure you are getting a good deal so you decided to use what you know about physical properties and density. You get the mass of the chain as 10g and the volume is 5mL. Is this a good deal or is the owner ripping you off?

Answer 1

The density of the gold chain is 2 g/mL, which is much lower than the known density of gold. This suggests that the chain may not be made entirely of gold, indicating a possibility of being ripped off.

Step-by-step explanation:

The density of a substance is defined as its mass per unit volume. In this case, you have the mass of the gold chain as 10g and the volume as 5mL. To determine the density, divide the mass by the volume:

Density = mass / volume

Density = 10g / 5mL

Density = 2 g/mL

Now compare the density of the gold chain to the known density of gold, which is 19.3 g/cm³. Since the density of the chain is much lower, it suggests that the chain may not be made entirely of gold. Therefore, it is possible that the owner may be ripping you off.