Type 4 - Find the quantity of base or vehicle
9. Altering Product Strength 9.2) Alligation 9.2.1) Alligation
9.2.1.1) Alligation Normal 1
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You want to prepare 81% of an ointment. You have some ointment base or vehicle and 960 g of 95% ointment. Calculate how many grams of base you need to mix with the 95% ointment in order to compound the product.
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lb equals 165.93 g kg
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Tic-tac-toe, Short form:
`[[95 % (960 \quad g),\quad\quad\quad\quad, 81 pt],[\quad\quad\quad\quad,81 % , \quad\quad\quad\quad],[0 % (? g),\quad\quad\quad\quad,14 pt]]`
Therefore, 14 parts of the ointment base should be mixed with 81 parts of the ointment having a concentration of 95 % and the weight of 960 grams.
`(960 \quad g)/(81 \quad parts)=x/(14 \quad parts) \quad therefore x = 165.93 \quad g`. Ans.