Ontario Registered Pharmacy Technician (RphT) Practice Exam

Question: 1 / 400

How many grams of silver nitrate 2% ointment will deliver 1g of the active ingredient?

25g

4g

50g

The correct answer is C. 50g. This is because the percentage listed (2%) represents the amount of active ingredient in relation to the total weight of the ointment. So if 2% of the ointment is the active ingredient, that means the remaining 98% is made up of other ingredients and fillers. Therefore, to get 1g of the active ingredient, we would need 50g of the ointment since 2% of 50g is equal to 1g. The other options are incorrect because A and D are too high and B is too low. Make sure to pay attention to the given percentage and how it relates to the total weight when solving this type of problem.

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20g

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