A 3.20 g sample of pyrite (density = 4.5 g /mL0)is placed into a graduated cylinder with 15.64 mL of water.What will be the new volume of water?
A)30.04
B)14.93
C)16.35
D)0.71 mL

Question

Quizplus · Accepted Answer

We can use the formula:

Density = Mass/Volume

Rearranging this formula gives us:

Volume = Mass/Density

Using this formula, we can find the initial volume of the pyrite:

Volume = 3.20 g / 4.5 g/mL = 0.711 mL

When the pyrite is placed into the graduated cylinder with water, its volume displaces some of the water. The final volume of the water can be found by adding the initial volume of water with the volume of the pyrite:

Final Volume = Initial Volume of Water + Volume of Pyrite

Final Volume = 15.64 mL + 0.711 mL = 16.351 mL, which is approximately equal to 16.35 mL. Therefore, the answer is choice C.

A 320 G Sample of Pyrite (Density = 4