Download Density and Fluids

“The Density Equation”
Density
(g/mL or
g/cm3)
Mass
(g)
Volume (mL or
cm3)
Liquid - graduated cylinder
•Read at the meniscus
Regular Solid - L x W x H = cm3
Irregular Solid - displacement
Let’s Practice…
If the mass of an object is 6
grams and the volume is 3 mL,
what is the density of the object?
Step 1 Step 2 Step 3
Step 4
m = 6g D = m
1
V
V = 3mL
D= ?
D = 6g
3mL
D = 2 g/mL
Let’s Practice…
If the density of an object is
2 g/mL and the volume is 4 mL,
what is the mass of the object?
Step 1 Step 2 Step 3
Step 4
m= ?
V = 4mL
D = 2 g/mL
m = 8 g/mL
Let’s Practice…
If the density of an object is 5
g/mL and the mass is 15 g, what
is the volume of the object?
Step 1
Step 2 Step 3
Step 4
m = 15g
V= ?
D = 15 g/mL
V = 1 mL
1.
2.
3.
4.
If the mass of an object is 20 g and the
volume of the object is 50 cm3, what is the
density? Will it sink or float in H2O?
If the mass of an object is 12 g and the
dimensions are 2cm x 2cm x 3cm, what is
the density of the object?
What is the mass of an object with a
volume of 2 cm3 and a density of 6 g/cm3?
What is the volume of a object with a mass
of 24 g and a density of 8 g/mL?