Question

The density of quartz mineral was determined by adding a weighed piece to a graduated cylinder containing 50.3 mL water. After the quartz was submerged, the water level was 64.8 mL. The quartz piece weighed 38.9 g. What was the density of the quartz?

Answer 1

Answer: The density of the quartz is 2.68 g/mL

Explanation:

We are given:

Volume of graduated cylinder = 50.3 mL

Volume of quartz + graduated cylinder = 64.8 mL

Volume of quartz = [64.8 - 50.3] mL = 14.5 mL

To calculate the density of substance, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

Mass of quartz = 38.9 g

Volume of quartz = 14.5 mL

Putting values in above equation, we get:

$\text{Density of quartz}=\frac{38.9g}{14.5mL}\\\\\text{Density of quartz}=2.68g/mL$

Hence, the density of the quartz is 2.68 g/mL

Answer 2

Answer:

The density of the quartz is 2.68 g/mL

Explanation: