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DENSITY DENSITY – THE MASS OF – THE MASS OF ONE CM ONE CM 3 3 OR ONE ML OF A OR ONE ML OF A SUBSTANCE SUBSTANCE Density mass (g) volume(cm 3 ) Mercury 13.6 g/cm 13.6 g/cm 3 21.5 g/cm 21.5 g/cm 3 Aluminum 2.7 g/cm 2.7 g/cm 3 Platinum

DENSITY – THE MASS OF ONE CM 3 OR ONE ML OF A SUBSTANCE Mercury 13.6 g/cm 3 21.5 g/cm 3 Aluminum 2.7 g/cm 3 Platinum

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Page 1: DENSITY – THE MASS OF ONE CM 3 OR ONE ML OF A SUBSTANCE Mercury 13.6 g/cm 3 21.5 g/cm 3 Aluminum 2.7 g/cm 3 Platinum

DENSITYDENSITY – THE MASS OF ONE CM – THE MASS OF ONE CM33 OR ONE ML OF A SUBSTANCEOR ONE ML OF A SUBSTANCE

Density mass (g)volume (cm3)

Density mass (g)volume (cm3)

Mercury

13.6 g/cm13.6 g/cm33 21.5 g/cm21.5 g/cm33

Aluminum

2.7 g/cm2.7 g/cm33

Platinum

Page 2: DENSITY – THE MASS OF ONE CM 3 OR ONE ML OF A SUBSTANCE Mercury 13.6 g/cm 3 21.5 g/cm 3 Aluminum 2.7 g/cm 3 Platinum

ProblemProblem: : A piece of copper has a mass of 57.54 A piece of copper has a mass of 57.54 g. It is 9.36 cm long, 7.23 cm wide, and 0.95 mm g. It is 9.36 cm long, 7.23 cm wide, and 0.95 mm thick. Calculate density (g/cmthick. Calculate density (g/cm33).).

Density mass (g)volume (cm3)

Density mass (g)volume (cm3)

Page 3: DENSITY – THE MASS OF ONE CM 3 OR ONE ML OF A SUBSTANCE Mercury 13.6 g/cm 3 21.5 g/cm 3 Aluminum 2.7 g/cm 3 Platinum

ProblemProblem A piece of copper has a mass A piece of copper has a mass of 57.54 g. It is 9.36 cm long, 7.23 cm of 57.54 g. It is 9.36 cm long, 7.23 cm wide, and 0.95 mm thick. Calculate wide, and 0.95 mm thick. Calculate density (g/cmdensity (g/cm33).).

G=U=E=S=S=

M= 57.54 g, Length= 9.36 cm Width= 7.23 cm, Thickness0.95 mm

Density= ? (g/cm3)

Density= mass volume

Volume = l x w x h

0.95 mm x 1 m x 102 cm 103 mm 1 m

=0.095 cm3

Volume = 9.36 cm x7.23 cm x 0.095 cm = 6.4 cm3

Density= 57.54 g 6.4 cm3

=8.990625 or 9.0 g/cm3

Page 4: DENSITY – THE MASS OF ONE CM 3 OR ONE ML OF A SUBSTANCE Mercury 13.6 g/cm 3 21.5 g/cm 3 Aluminum 2.7 g/cm 3 Platinum

PROBLEM: MERCURY (HG) HAS A DENSITY OF 13.6 PROBLEM: MERCURY (HG) HAS A DENSITY OF 13.6 G/CMG/CM33. WHAT IS THE MASS OF 95 ML OF HG IN . WHAT IS THE MASS OF 95 ML OF HG IN GRAMS? GRAMS?

PROBLEM: MERCURY (HG) HAS A DENSITY OF 13.6 PROBLEM: MERCURY (HG) HAS A DENSITY OF 13.6 G/CMG/CM33. WHAT IS THE MASS OF 95 ML OF HG IN . WHAT IS THE MASS OF 95 ML OF HG IN GRAMS? GRAMS?

Page 5: DENSITY – THE MASS OF ONE CM 3 OR ONE ML OF A SUBSTANCE Mercury 13.6 g/cm 3 21.5 g/cm 3 Aluminum 2.7 g/cm 3 Platinum

PROBLEM: MERCURY (HG) HAS A DENSITY OF 13.6 PROBLEM: MERCURY (HG) HAS A DENSITY OF 13.6 G/CMG/CM33. WHAT IS THE MASS OF 95 ML OF HG?. WHAT IS THE MASS OF 95 ML OF HG?

PROBLEM: MERCURY (HG) HAS A DENSITY OF 13.6 PROBLEM: MERCURY (HG) HAS A DENSITY OF 13.6 G/CMG/CM33. WHAT IS THE MASS OF 95 ML OF HG?. WHAT IS THE MASS OF 95 ML OF HG?

G=U=E=S=S=

D= 13.6 g/cm3, Volume = 95mL

Mass=?

Density= mass volume

Mass= density x volume

Mass= 13.6 g/cm3 x 95mL 1 cm3 = 1 mL

1292g 1300 g

Page 6: DENSITY – THE MASS OF ONE CM 3 OR ONE ML OF A SUBSTANCE Mercury 13.6 g/cm 3 21.5 g/cm 3 Aluminum 2.7 g/cm 3 Platinum

LEARNING CHECKLEARNING CHECKOsmium is a very dense metal. What is its Osmium is a very dense metal. What is its

density in g/cmdensity in g/cm3 3 if 50.00 g of the metal occupiesif 50.00 g of the metal occupies

a volume of 2.22cma volume of 2.22cm33??

A) 2.25 g/cmA) 2.25 g/cm33

B)B) 22.5 g/cm22.5 g/cm33

C)C) 111 g/cm111 g/cm33

G=U=E=S=S=

Page 7: DENSITY – THE MASS OF ONE CM 3 OR ONE ML OF A SUBSTANCE Mercury 13.6 g/cm 3 21.5 g/cm 3 Aluminum 2.7 g/cm 3 Platinum

VOLUME/WATER DISPLACEMENTVOLUME/WATER DISPLACEMENT

A solid displaces a matching volume of water when the A solid displaces a matching volume of water when the solid is placed in water. What is the volume of the metal solid is placed in water. What is the volume of the metal object. object.

33 mL33 mL

25 mL 25 mL

V= 33mL-25mL

8 mL

Page 8: DENSITY – THE MASS OF ONE CM 3 OR ONE ML OF A SUBSTANCE Mercury 13.6 g/cm 3 21.5 g/cm 3 Aluminum 2.7 g/cm 3 Platinum

What is the density (g/cmWhat is the density (g/cm33) of 48 g of a metal if the metal raises ) of 48 g of a metal if the metal raises the level of water in a graduated cylinder from 25 mL to 33 mL? the level of water in a graduated cylinder from 25 mL to 33 mL?

G U E S SM= 48 g V= 8 mLV= 8 cm3

D= g/cm3

D= mass

Volume D= 48 g 8cm3

D= 6.0 cm3

Page 9: DENSITY – THE MASS OF ONE CM 3 OR ONE ML OF A SUBSTANCE Mercury 13.6 g/cm 3 21.5 g/cm 3 Aluminum 2.7 g/cm 3 Platinum

LEARNING CHECKLEARNING CHECK

Which diagram represents the liquid layers in the cylinder?Which diagram represents the liquid layers in the cylinder?

(K) Karo syrup (1.4 g/mL),(K) Karo syrup (1.4 g/mL),

(V) vegetable oil (0.91 g/mL,) (V) vegetable oil (0.91 g/mL,)

(W) water (1.0 g/mL)(W) water (1.0 g/mL)

A)A) B)B) C) C)

K

K

W

W

W

V

V

V

K

Page 10: DENSITY – THE MASS OF ONE CM 3 OR ONE ML OF A SUBSTANCE Mercury 13.6 g/cm 3 21.5 g/cm 3 Aluminum 2.7 g/cm 3 Platinum

LEARNING CHECKLEARNING CHECK

Which diagram represents layers in the cylinder? Each layer Which diagram represents layers in the cylinder? Each layer represent a different phase or state of matterrepresent a different phase or state of matter

(I) Solid water (ice) (0.9 g/mL), (I) Solid water (ice) (0.9 g/mL),

(V) Water vapor (0.84 g/mL,)(V) Water vapor (0.84 g/mL,)

(W) liquid water (1.0 g/mL)(W) liquid water (1.0 g/mL)

A)A) B.) B.) C) C)

I

I

V

V

V

W

W

W

I

Page 11: DENSITY – THE MASS OF ONE CM 3 OR ONE ML OF A SUBSTANCE Mercury 13.6 g/cm 3 21.5 g/cm 3 Aluminum 2.7 g/cm 3 Platinum

SOLUTIONSOLUTION

(K) Karo syrup (1.4 g/mL), (V) vegetable oil (0.91 g/mL,) (K) Karo syrup (1.4 g/mL), (V) vegetable oil (0.91 g/mL,) (W) water (1.0 g/mL)(W) water (1.0 g/mL)

1)1)

K

W

V

Page 12: DENSITY – THE MASS OF ONE CM 3 OR ONE ML OF A SUBSTANCE Mercury 13.6 g/cm 3 21.5 g/cm 3 Aluminum 2.7 g/cm 3 Platinum

EXIT TICKET• The table below shows some information for four different elements.

• A cube of an unknown element has a shiny silvery color. The side of the cube measures 3.0 cm and the cube has a mass of 194.4 g. Based on the information provided, which element makes up the cube?

• A barium B beryllium C chromium D phosphorous