Page 24 - Practical DF2 Corrected (2)

Pharm D Clinical Pharmacy program 2024-2025 Level 2, Semester 2 Pharmaceutical Dosage Forms II (PT 405)

Problem 3:

Rx/

White soft paraffin 10.5 g

Olive oil ?g

Borax 0.99 g

White beeswax 10.5 g

Distilled water 50 g

Knowing that:

- Molecular weight of borax (Na2B4O7.10 H2O) = 381.43 g/mol

- Molecular weight of potassium hydroxide (KOH) = 6.11 g/mol

- Molecular weight of sodium hydroxide (NaOH) = 40 g/mol

- Acid value of olive oil = 2

- Acid value of white beeswax = 20

Calculate the amount of olive oil required to prepare 20 g of the above
preparation

………………………………………….…………………………………………………………………………….………………………………………………………
…………………………….…………………………………………………………………………….……………………………………………………………………
……………….…………………………………………………………………………….…………………………………………………………………………………
……………….…………………………………………………………………………….…………………………………………………………………………………
…………………………………………………………………….…………………………………………………………………………….……………………………
……………………………………………………….…………………………………………………………………………….…………………………………………
………………………………………….…………………………………………………………………………….………………………………………………………
…………………………….…………………………………………………………………………….……………………………………………………………………
……………….…………………………………………………………………………….…………………………………………………………………………………
…………………………………………………………………….…………………………………………………………………………….……………………………
…………………………………………………………………….…………………………………………………………………………….……………………………
……………………………………………………….…………………………………………………………………………….…………………………………………
………………………………………….…………………………………………………………………………….………………………………………………………
………………………………………….…………………………………………………………………………….………………………………………………………
………………………………………….…………………………………………………………………………….………………………………………………………

23