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Introduction to Chemistry for Allied Health Sciences Density & Specific Gravity Kirk Hunter Chemical Technology Department Texas State Technical College Waco
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Density
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DENSITY MASS PER UNIT VOLUME
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DENSITY FOR SOLIDS AND LIQUIDS:
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DENSITY FOR SOLIDS AND LIQUIDS: Note: 1 cm 3 1 mL
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DENSITY FOR GASES:
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DENSITY Example: Calculate the density of a metal if 356 grams occupies a volume of 43.1 mL.
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Specific Gravity
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SPECIFIC GRAVITY
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Reference Substance WATER AT 4 o C
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SPECIFIC GRAVITY Note: Specific Gravity has NO units.
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SPECIFIC GRAVITY Example: The density of gold is 19.3 g/mL. What is its specific gravity?
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SPECIFIC GRAVITY Notation 19.3 25/4
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SPECIFIC GRAVITY Notation 19.3 25/4 19.3 specific gravity
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SPECIFIC GRAVITY Notation 19.3 25/4 25 temperature of substance measured in ºC.
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SPECIFIC GRAVITY Notation 19.3 25/4 4 temperature of reference substance measured in ºC.
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