Chem exam #1 practice test

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

Frank has an eraser. It has a mass of 4g, and a volume of 2cm³. What is its density?

• 8 g/cm³
• 2 g/cm³
• 1/2 g/cm³
• 24 g/cm³

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

Which units of measurement are used for volume?

• grams
• centimeters
• grams/milliliter
• milliliter

What units are used to measure Density?

• cm³/g
• g
• g/cm³
• cm³

A crayon has a mass of 10g and volume of 5 mL. What is the density?

• 30 g/mL
• 15 g/mL
• 1 g/mL
• 2 g/mL

A student measures the mass of an 8.0 cm³ block of brown sugar to be 12.9 g. What is the density of the brown sugar?

• 1.6 g/cm³

• 0.62 g/cm³

• 103.2 g/cm³

• 0.54 g/cm³

A graduated cylinder is filled with water to a level of 40.0 mL. When a piece of copper is lowered into the cylinder, the water level rises to 63.4 mL. Find the volume of the copper sample.

If the density of the copper is 8.9 g/cm³ , what is its mass?

• 23.4 g

• 0.380 g

• 208 g

• 2.63 g

Calculate the volume of a liquid with a density of 5.45 g/mL and a mass of 65 g.

• 11.9 mL

• 354 mL

• 0.0838 mL

• 59.6 mL

How many sig figs are there?
100.00

• 1
• 3
• 4
• 5