Question

A graduated cylinder has a mass of 50 g when empty. When 30 mL of water is added, the graduated
cylinder has a mass of 120 g. If a rock is added to the graduated cylinder, the water level rises to 75
mL and the total mass is now 250 g. What is the density of the rock?

Answer 1

Answer:

The answer to your question is: 10.67 g/ml

Explanation:

graduated cylinder mass empty= 50 g

+ 30 ml of water = 120 g

+ a rock the level rises 75 ml total mass = 250 gr

density of metal = ?

Formula

density = mass / volume

Process

mass of water = 120 - 50 = 70 g

volume of rock = 75 ml

mass of the rock = 250 - 50 - 120 = 80 g

density of rock = 80 / 75 = 10.67 g/ml