Density Practice Problems Quiz

What is the first step recommended when solving a density problem?

• Write the density equation.

• Calculate the volume.

• Convert units.

• Find the mass.

How many significant figures should the density of olive oil have if the mass is 18.4 grams and the volume is 20.0 milliliters?

• Two significant figures

• Three significant figures

• Four significant figures

• One significant figure

What is the density of gold if its mass is 57.9 grams and its volume is 3.0 cm³?

• 19.3 g/cm³

• 18.0 g/cm³

• 20.0 g/cm³

• 17.5 g/cm³

When solving for mass in a density problem, what should you do if mass is being divided by volume?

• Divide both sides by the volume.

• Multiply both sides by the volume.

• Subtract the volume from both sides.

• Add the volume to both sides.

In a density problem, why is it important to check unit cancellation?

• To avoid using a calculator.

• To simplify the equation.

• To make the calculation faster.

• To ensure the answer is in the correct unit.

What is the trick to solve for a variable in the denominator in a density equation?

• Use the quadratic formula.

• Apply the crisscross method.

• Subtract the variable from both sides.

• Add the variable to both sides.

How do you set up a density equation to solve for volume when the unknown is in the denominator?

• Multiply density by mass.

• Divide mass by density.

• Use equivalent fractions.

• Add density to mass.

What is the density of aluminum if its mass is 4.25 grams and its volume is 1.57 cm³?

• 3.00 g/cm³

• 2.50 g/cm³

• 2.70 g/cm³

• 2.80 g/cm³

How can density be used as a conversion factor?

• By converting mass to length.

• By converting volume to mass.

• By converting mass to volume.

• By converting length to volume.

If blood plasma has a density of 1.027 g/ml, what is the volume of 125 grams of plasma?

• 122 ml

• 130 ml

• 125 ml

• 120 ml