Density and Temperature Chemistry Ms Hughes Density and

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Density and Temperature Chemistry --- Ms. Hughes

Density and Temperature Chemistry --- Ms. Hughes

Density and Specific Gravity

Density and Specific Gravity

VIII. ) DENSITY AND SPECIFIC GRAVITY A. ) DENSITY is the ratio of the

VIII. ) DENSITY AND SPECIFIC GRAVITY A. ) DENSITY is the ratio of the mass of a substance to the volume occupied by that substance. Density = mass of substance OR d= m Vol. of substance V

“Sinking Soda Surprise” Which can is more dense?

“Sinking Soda Surprise” Which can is more dense?

Mass and Volume of the Soda Cans Can Type Mass Volume Dasani Sparkling Water

Mass and Volume of the Soda Cans Can Type Mass Volume Dasani Sparkling Water 12 oz= 355 m. L Coca-Cola 12 oz= 355 m. L Diet Coke 12 oz= 355 m. L Mountain Dew 12 oz= 355 m. L Sprite 12 oz= 355 m. L Dr. Pepper 12 oz= 355 m. L

Calculate the Density of the Cans Can Mass Volume Dasani 355 m. L Coke

Calculate the Density of the Cans Can Mass Volume Dasani 355 m. L Coke 355 m. L Diet Coke 355 m. L Mtn. Dew 355 m. L Sprite 355 m. L Dr. Pepper 355 m. L Density Sink/Float

Calculate the Density of the Cans Can Mass Volume Dasani 355 m. L Coke

Calculate the Density of the Cans Can Mass Volume Dasani 355 m. L Coke 355 m. L Diet Coke 355 m. L Mtn. Dew 355 m. L Sprite 355 m. L Dr. Pepper 355 m. L Density Sink/Float

1. ) Density is expressed in different units depending on the phase of the

1. ) Density is expressed in different units depending on the phase of the substance. a. ) Solids are usually expressed in grams per cubic centimeter (g/cm 3)

b. ) Liquids are commonly grams per milliliter (g/m. L)

b. ) Liquids are commonly grams per milliliter (g/m. L)

c. ) Gases are usually expressed as grams per liter (g/L)

c. ) Gases are usually expressed as grams per liter (g/L)

2. ) Density can be used as a conversion factor that relates mass and

2. ) Density can be used as a conversion factor that relates mass and volume. 3. ) Densities can be used to calculate mass if volume is given or calculate volume given mass.

WORKED EXAMPLE 1 -5 If 10. 4 m. L of a liquid has a

WORKED EXAMPLE 1 -5 If 10. 4 m. L of a liquid has a mass of 9. 142 g, what is its density? Solution. d= m d = 9. 142 g = 0. 879 g/m. L V 10. 4 m. L

WORKED EXAMPLE 1 -6 The density of a saline solution is 1. 05 g/m.

WORKED EXAMPLE 1 -6 The density of a saline solution is 1. 05 g/m. L. Calculate the mass of a 377. 0 m. L sample. Solution. d= m m = 377. 0 m. L x 1. 05 g = 396 g V 1. 00 m. L

PRACTICE 1 -8 The density of rubbing alcohol is 0. 786 g/m. L. What

PRACTICE 1 -8 The density of rubbing alcohol is 0. 786 g/m. L. What volume of rubbing alcohol would you use if you needed 32. 0 g? D = m 0. 786 g/m. L = 32. 0 g V V V= 32. 0 g 0. 786 g/ml V= 40. 7 m. L

B. ) SPECIFIC GRAVITY is the ratio of the density of liquid to the

B. ) SPECIFIC GRAVITY is the ratio of the density of liquid to the density of water at 4 o. C, which is 1. 00 g/m. L. Since specific gravity is a ratio of two densities, the units cancel. Specific gravity = density of sample (g/m. L) Density of water (g/m. L)

WORKED EXAMPLE 1 -7 What is the specific gravity of jet fuel if the

WORKED EXAMPLE 1 -7 What is the specific gravity of jet fuel if the density is 0. 775 g/m. L? Solution. Specific gravity= 0. 775 g/m. L = 0. 775 1. 00 g/m. L

PRACTICE 1 -9 A 50. 0 m. L sample of blood has a mass

PRACTICE 1 -9 A 50. 0 m. L sample of blood has a mass of 53. 2 g. a. ) Calculate the density of the blood. d= m = 53. 2 g = 1. 06 g/m. L V 50. 0 m. L b. )Calculate the specific gravity of the blood. density of blood = 1. 06 g/m. L = 1. 06 density of water 1. 00 g/m. L

TEMPERATURE

TEMPERATURE

IX. ) TEMPERATURE SCALES

IX. ) TEMPERATURE SCALES

PRACTICE 1 -10 Complete the following table. Fahrenheit Celsius Kelvin 88 o. F -55

PRACTICE 1 -10 Complete the following table. Fahrenheit Celsius Kelvin 88 o. F -55 o. C 469 K

PRACTICE 1 -10 Complete the following table. Fahrenheit Celsius Kelvin 88 o. F 31

PRACTICE 1 -10 Complete the following table. Fahrenheit Celsius Kelvin 88 o. F 31 o. C 304 K -67 o. F -55 o. C 218 K 384. 8 o. F 196 o. C 469 K

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