Pure substances Vs. Mixtures
This substance has a density of 1.0g/mL
What is water?
Is rusting of iron a chemical or physical change?
Chemical
The measurement of how much mass of a substance is contained in a given volume.
What is the definition of Density?
4.67g / 32.8mL. Find Density and say if it sinks or floats.
0.14g/mL. The object sinks.
What can Density do when identified?
It can identify an unknown substance.
What is a pure substance that cannot be broken down into simpler substances by chemical means?
Element
Mass / Density
What is the formula for volume?
The amount of space an object takes up.
What is the definition of Volume?
This is the mass of an object that has a density of 1.74g/mL and a volume of 63mL.
What is 109.62 g?
When measuring the Volume of a solid object, what unit is it usually expressed in?
In cubic centimeters.
A combination of two or more substances that are not chemically bonded.
Mixture
a container holds 250 ml of water.
How many cubic centimeters (cm^3) is that equivalent to?
250 cm^3
The measurement of the amount of matter in an object.
What is the definition of Mass?
22.95g / 15.45cm3. Find density. Say if it sinks or floats.
1.48g/cm. The object sinks.
A measure of the force of gravity on you.
What is the definition of Weight?
These are the units used to measure the density of a solid.
What is g/cm3?
This is the density of an object that has the Mass of 45.87 g and the Volume of 21.42 mL.
What is 2.14 g/mL?
Density is a __________ property
What is characteristic property?
This is the volume of a liquid that has mass of 41g and a density of 3.2g/mL.
What is 12.81mL?
This is the density of a 28.5 g of iron ball that is added to a graduated cylinder containing 45.50 mL of water. The water level rises to the 49.10 mL mark.
What is 7.91 g/cm3?
Which of the following is a pure substance?
air
gold
Soil
Explain
Gold is an element listed on the periodic table
This is the mass of an object that has the Density of 4.67 g/mL and Volume of 3.91 mL.
What is 18.26 g?
If two objects have the same volume but different masses, which object will have the higher density?
If two objects have the same volume but different masses, the object with the higher mass will have the higher density
97kg / 105L. Find the density. Say if it sinks or floats.
0.92. This object floats.
Joey finds a treasure chest packed with metallic coins. The chest has a volume of 1.5 m3 and is filled completely by the coins. The coins have a total mass of 16,950 kg. Hoping to find gold, he calculates the density to determine the metal of the coins.
What kind of metal are the coins made of?
Bronze (8700 kg/m3)
Silver (10,500 kg/m3)
Lead (11,300 kg/m3)
Gold (19,300 kg/m3)
What is lead?