Density and Specific Gravity Flashcards
At the end of the lesson, the students must have: 1. Executed computation skills on density and specific gravity through appropriate calculations and its application to pharmacy.
Calculate the number of milliliters (mL) of polysorbate 80 (sp. gr. 1.08) required to prepare 48 100 g tubes of the following formula for a progesterone vaginal cream.
Progesterone, micronized 3 g
Polysorbate 80 1 g
methylcellulose 2% gel 96 g
Note: unit should be abbreviated
Two decimal places
The correct answer is:
44.44 mL
What is the volume, in Liters, of a solution that weights 0.45 kg and has a specific gravity of 0.75%?
The correct answer is:
0.6 L
If fifty glycerin suppositories are made from the following formula, how many milliliters (mL) of glycerin, having a specific gravity of 1.25, would be used in the preparation of 96 suppositories?
Answer should be in 2 decimal places only.
The correct answer is:
139.78 mL
You have a sample granite with a density of 2.8 g/cm3. The density of water is 1.0 g/cm3. What is the specific gravity of your granite?
The correct answer is:
2.8
If a 96.5 g piece of aluminum has a density of 2.7 g/cm3, what is its volume?
For uniformity of answers, the unit should be cm3
The correct answer is:
35.7 cm3
What is the specific gravity of a substance that weighs 75 g and occupies a volume of 150 mL?
The correct answer is:
0.5
What is the density of a piece of wood that has a mass of 25.0 grams and a volume of 29.4 cm3?
Answer should be 2 decimal places only
The correct answer is:
0.85 g/cm3
A cup of gold colored metal beads was measured to have a mass of 425 grams. By water displacement, the volume of the beads was calculated to be 48.0 cm3. Given the choices, identify the metal.
The correct answer is:
Copper: 8.85 g/mL
An international supplier sells an Indian Castor Oil at PhP 1,200.00 per metric ton (1000 kg) Given the specific gravity of the oil (0.96), and using conversion factor, calculate the corresponding price of a pint of the oil.
The correct answer is:
PhP 0.54
If 25 g of glycerin measures 20 mL and the standard for comparison is (25 g) water, what is the specific volume of glycerin? (2 decimal places)
The correct answer is:
0.80
