Chemistry

Pharmaceutics Calculations Practice Set #1 with Answers

41 votes 4.8

 

1.

A person dispenses 250 prescriptions per day. How many more prescription does she have to fill if her boss wants her to bring an increase of 10% per day.

  • 25
  • 275
  • 50
  • 10

 

2.

Lactic Acid 4g

Salicylic acid 5g

Trichloroacetic Acid 2g

Flexible Collodion q.s. ad 100g

Flexible collodion contains 20% w/w camphor and 30% w/w castor oil. How many grams of each would be contained in 30g of the mixture?

  • 5.34 & 8.01
  • 17.8 & 26.7
  • 89 & 100
  • 55 & 67

 3.

Rx

Antipyrine 5%

Glycerin ad 60ml

How many grams of antipyrine should be used in preparing the prescription?

  • 3
  • 5
  • 60
  • 30

4.

Rx

Lactic Acid 4g

Salicylic acid 5g

Trichloroacetic Acid 2g

Flexible Collodion q.s. ad 100g

If the specific gravity of the mixture is 0.781, what are the w/v concentrations of lactic acid, salicylic acid, and trichloroacetic acid in the mixture?

  • 2.4, 2.7 & 1.2 respectively
  • 4.2, 4.9 & 2.6 respectively
  • 4, 5 & 2 respectively
  • 3.1, 3.9, & 1.6 respectively

 

5. How many liters of 5% w/v pilocarpine solution can be prepared from 200g of pilocarpine?

  • 4000
  • 4
  • 2000
  • 5

Categories: Chemistry, Pharmacy