Question

platinum is a strong and durable metal, making it highly resistant to scratches. for this reason some people prefer platinum jewelry for everyday wear. platinum has a density of 21.45 g/cm³. jason was given a platinum necklace as a birthday gift. the necklace has a mass of 132 grams and a length of 0.5 meters. what is the density of jasons necklace? density = mass/volume 132.0 g/cm³ 0.004 g/cm³ 264.0 g/cm³ 21.45 g/cm³

Explanation:

Step1: Recall density formula

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

Step2: Identify given mass

The mass of the necklace is 132 grams. But we are not given the volume. However, if the necklace is pure platinum, its density is a characteristic property of platinum. A pure platinum necklace will have the density of platinum material.

Step3: State density of platinum

The density of platinum is 21.45 g/cm³, and since the necklace is platinum, its density is 21.45 g/cm³.

Answer:

21.45 g/cm³