Wake-upShow all work using the following information to convert. 1 quark=2.9 who 1 who=5 mabees

1 bug = 3.7 quark 1 kuz = 3.2 mabees

a. 4.5 bug to quark

b. 3.3 mabees to quark

Density

Which container is more dense?

Container A has more particles therefore is more dense; takes up more volume than B

A B

What is Density?

The relationship between the

mass of a substance and

how much space it takes up (volume).

Density Formula

Density = Mass = grams = grams Volume cm3 mL

Units

Density Triangle

Density =

Mass =

Volume =

MassVolume

Density x Volume

MassDensity

Example #1

Some liquid nitrogen has a mass = 14 grams and a volume = 36.3 mL. What is the density?

Density = Mass = 14 grams = 0.386 g/mL Volume 36.3 mL

Example #2A sample of wood has a mass of 58g and a volume

of 73cm3. What is the wood’s density?58g 73cm3 = 0.79g/cm3

Example #3The density of gold is 19.3g/cm3. What would the

volume be fore a 180g sample of gold?180g

19.3g/cm3 = 9.32 cm3V = M D

Example #4The density of steel is 7.8g/mL. What would the

mass be for a 14mL sample of steel?

(7.8g/mL)(14mL) = 109.2gM = D x V

Example #5A substance has a mass of 24.32kg and a volume of 19.8L. What is the density?

D = Mass = 24,320 g = 1.23 g/mL Volume 19,800 mL

24.32 kg = 24,320 grams 19.8 L = 19, 800 mL

Lab Practice ProblemAn unknown metal having a mass of 400 g was

added to a graduated cylinder that contained 40 ml of water. After the addition, the water rose to 78.1 ml. Using this info and a reference table, identify

the unknown metal.• Mass = ______ g• Volume = 78.1 ml – 40 ml = _____ ml• D = Mass

Volume • Identity of metal = ____________

400

38.1

400 g___

38. 1 mL

Silver

= 10.5g/mL

Density via Displacement