D6

Question 1

Calculating percentages

Answer 1

W/W weight in weight = 1g in 100g
W/V weight in volume = 1g in 100 ml
V/V volume to volume = 1ml in 100 ml

Question 2

How to measure viscous liquids

Answer 2

Weight = volume x density
Use weighting boat or beaker
Rinse container with vehicle

Question 3

Dosing instruction for oral liquid medicines

Answer 3

5 ml spoon is standard measure
This can also mean the strength of the medicine is expressed per 5 ml

Question 4

How to administer oral liquid medicines to young children

Answer 4

2 sided spoon ( small side is 2.5 ml)
Oral syringe ( must be directed towards the inside Of the baby’s cheek

Question 5

How to prepare a solution

Answer 5

Step 1 : dissolve solids in a small volume of the vehicle
( use beaker and glass rod then add solution to conical flask with rinsing)
Step 2 add liquids , volatile first , do not rinse
Step 3 make up to volume and mix using glass rod
Step 4 pour into bottle mix again and label the bottle

Question 6

How to prepare a suspensions

Answer 6

1. Grind , sieve and weigh powders
   2 . Make smooth concentrated paste
   ( by geometric mixing , add small volume of liquid , use shearing to make a smooth dispersion )
   3.dilute the paste with liquids
2. Pour into calibrated bottle
3. Add other ingredients
4. Make up to volume