A rock sample has the density of 3.2 g/cm3. When you place it in a graduated cylinder with water, the water level rises from 50 ml to 57 ml. What is the mass of the rock?

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

From the question

density = 3.2 g/cm³

volume = final volume of water - initial volume of water

volume = 57 - 50 = 7 mL = 7 cm³

We have

mass = 3.2 × 7

We have the final answer as

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