chemistry notes density. density – the mass of an object per unit volume ex) the density of a...

Chemistry Notes Density

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Chemistry Notes

Density

density – the mass of an object per unit volume

ex) the density of a substance describes how tightly packed the molecules are

Density

density = mass

volume

D = m

Important Units

Mass is measured in grams.

Liquid volume is measured in mL.

Solid volume is measured in cm3.

Liquid density is measured in g/mL.

Solid density is measured in g/cm3.

Page 5: Chemistry Notes Density. density – the mass of an object per unit volume ex) the density of a substance describes how tightly packed the molecules are

An object will float if it is less dense than the liquid it is immersed in.

ex) oil floats on water because oil is less dense than water

Page 6: Chemistry Notes Density. density – the mass of an object per unit volume ex) the density of a substance describes how tightly packed the molecules are

An object will sink if it is more dense than the liquid it is immersed in.

ex) a rock will sink in water because it is more dense than water

Page 7: Chemistry Notes Density. density – the mass of an object per unit volume ex) the density of a substance describes how tightly packed the molecules are

Page 8: Chemistry Notes Density. density – the mass of an object per unit volume ex) the density of a substance describes how tightly packed the molecules are

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Page 9: Chemistry Notes Density. density – the mass of an object per unit volume ex) the density of a substance describes how tightly packed the molecules are

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