1. Introduction to Chemistry for Allied Health Sciences Density & Specific Gravity Kirk Hunter Chemical Technology Department Texas State Technical College Waco

2. Density

3. DENSITY MASS PER UNIT VOLUME

4. DENSITY FOR SOLIDS AND LIQUIDS:

5. DENSITY FOR SOLIDS AND LIQUIDS: Note: 1 cm 3  1 mL

6. DENSITY FOR GASES:

7. DENSITY Example: Calculate the density of a metal if 356 grams occupies a volume of 43.1 mL.

8. Specific Gravity

9. SPECIFIC GRAVITY

10. Reference Substance WATER AT 4 o C

11. SPECIFIC GRAVITY Note: Specific Gravity has NO units.

12. SPECIFIC GRAVITY Example: The density of gold is 19.3 g/mL. What is its specific gravity?

13. SPECIFIC GRAVITY Notation 19.3 25/4

14. SPECIFIC GRAVITY Notation 19.3 25/4 19.3  specific gravity

15. SPECIFIC GRAVITY Notation 19.3 25/4 25  temperature of substance measured in ºC.

16. SPECIFIC GRAVITY Notation 19.3 25/4 4  temperature of reference substance measured in ºC.