0.12

X

1.0 g

=

0.12 g of sodium benzoate

0.12

X

qs 1,000 ml

=

120 ml with pure water

that ingredient.

d. The thing to be remembered is that in finding a conversion factor, the amount

desired always is on top and the amount of the formula is always on the bottom.

e.

Work the following problems and check the answers.

(1)

Use the official formula below to calculate the amount of each

ingredient that should be used to make 90 ml of Orange Syrup.

Orange Syrup

Sweet orange peel tincture....

50 ml __________ ml

Citric acid....................

5g

_________ g

Talc...........................

15g

__________ g

Sucrose........................

820 g

__________ g

Pure water.....qsad............

1000 ml

__qsad 90

ml

(2)

Use the formula listed below to calculate how much of each ingredient

should be used to make 20,000 ml of Chigger Dope that is used to treat chigger insect

bites.

Chigger Dope

Benzocaine....................................

400 g

__________ g

Methyl salicylate...........................

160 ml

__________ ml

Salicylic acid....................................

40 g

__________ g

Isopropyl Alcohol NF, 99%

5,840 ml

__________ ml

Pure water... qsad .....................

8,000 ml

qsad _____ ml

MD0802

1-69

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