Question

A student places 14.0 mL of water in a graduated cylinder. The mass of the water and the graduated cylinder is found to be 44.271 grams, and then the balance is tared. After adding a number of metal pellets to the graduated cylinder, the liquid level in the cylinder is now 27.3 mL. The cylinder with the water and metal pellets is placed back on the balance, and the measured mass is 74.702 grams. Calculate the density of the metal pellets in g/mL. Do not include units in your answer.

Answer 1

The density of the metal pellets is 2.3.

What is density?

The density of an object is expressed as the ratio of the mass of the object and its volume.

Mathematically, density = mass/volume.

Mass of water+cylinder (A) = 44.271 g

Initial volume of water in the cylinder (B) = 14.0 mL

Final volume after adding metal pellets (C) = 27.3 mL

Mass of water+cylinder+ metal (D)= 74.702 g

Volume of the metal pellets = C - B = 27.3 - 14.0 = 13.3 mL

Mass of the metal pellets = D - A = 74.702 - 44.271 = 30.431 g

Density of the metal pellets = mass/volume

                         = 30.431/13.3 = 2.3

Thus, the density of the metal pellets is 2.3.

More on density can be found here: https://brainly.com/question/15164682

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