LAB REPORT No 2
Name_______________________________
Date________________
1- Measuring the mass of solids.
SOLID OBJECTS
g
mg
Kg
Beaker 1
Beaker 2
Cylinder
Ball
Rectangular Prism
Cube
Calculations:
2- Measuring the
Mass of Liquid
s. Determination of the Density of a Liquid.
|
Trial 1 |
Trial 2 |
|
|
Mass of Beaker + Liquid |
||
| Mass of Beaker | ||
| Mass of Liquid | ||
|
Volume of Liquid |
20.0 mL |
|
|
Density of Liquid |
||
|
Average Density |
||
|
Specific gravity |
Calculations:
3- Determination of the Density of a solid. Rectangular Prism
|
Density of object Method I |
Density of object
Method II |
|
Compare the densities and explain: |
Questions
1. From the experimental results obtained by you in the lab of the density of the liquid and the object, could the object float in that liquid? Explain
2. What is the relationship between the object density, the liquid density, and the tendency of the object to float?
3. What is the mass of the ethyl alcohol that exactly fills a 200.0 mL container? The density of ethyl alcohol is 0.789 g/mL. (Show Work)
4. If a patient took one pill (0.250 g each) of an antibiotic every 6 hours for two weeks, how many total milligrams of antibiotic did he take? (Show Work)
5. The dosage for ibuprofen 800 mg is 1 capsule every 8 h for adults. How many capsules do you need for 7 days of treatment? (Show Work)
