Density Practice #2

An irregularly shapped rock is dropped into a graduated cylinder filled with 20 mL of water. The water rises 32 mL. The mass of the rock is 22 g. What is the density of the rock?

• 264 g/mL

• .55 g/mL

• 1.83 g/mL

• 10 g/mL

Density object: 1.02 g/mL

Density of fluid: 1.01 g/mL

Will the object float or sink?

• Float

• Sink

Use the density chart to identify the substance. If the substance has a volume of 5 cm³ and a mass of 52.5.

• lead

• aluminum

• silver

• water

Tags

NGSS.MS-PS1-2

What is the volume of the rock?

• 40 mL

• 30 mL

• 20 mL

• 10 mL

A. gasoline 0.7 g/ cm³

B. lead 11.3 g/ cm³

C. mercury 13.6 g/ cm³

D. Paraffin(wax) 0.87 g/ cm³

E. platinum 21.4 g/ cm³

Which will not sink in water?

• A & B

• C & E

• B & C

• A & D

A block of aluminum occupies a volume of 15 mL and has a mass of 40.5 g. What is its density?

• .37 g/mL

• 605.5 g/mL

• 2.7 g/mL

• 25.5 g/mL

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The mass of the mercury is 306 grams. Calculate the density of the mercury.

• 328.5 g/mL

• .07 g/mL

• 6885 g/mL

• 13.6 g/ mL

What is the mass of ethanol that fills a 200 mL container? The density of ethano is .789 g/mL.

• 157.8 mL

• 157.8 g

• 253.49 g

• .004 mL

A rectangular block of copper metal has a mass of 1896 grams. The dimensions of the block are 8.4 cm by 5.5 cm by 4.6 cm. From this data, what is the density of the copper block?

• 1683.48 g/mL

• 402938 g/cm³

• 8.92 g/cm³

• 2108.52 g/cm³

What volume of silver has a mass of 2500 g? The density of silver is 10.5 g/cm³.

• 2489.5 mL

• 238.1 mL

• 26250 cm³

• 238.1 cm³