The formula sheet that you will work to reads as follows:
Thyroxine 50 microgram tablets sufficient quantity
Compound Tragacanth Powder 10g
Double Strength Chloroform Water 25ml
Purified Water to 50ml
You have in stock Concentrated Chloroform Water, but not Double Strength Chloroform Water.
Which of the following statements is/are correct?
A. The number of thyroxine 50 microgram tablets required is 15
B. The volume of Concentrated Chloroform Water required is 0.625ml
C. The total volume of the suspension to be supplied is 2.5ml
Total volume of suspension to be supplied = 20 x 5ml = 100ml, so C is incorrect
Total number of tablets required = 37.5 x 20 = 15, so A is correct
Volume of Concentrated Chloroform Water:
Ratio of concentration of Concentrated Chloroform Water to Double Strength Chloroform Water = 1 in 20, therefore require: 25 = 1.25ml, so B is incorrect
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