hiow many grams of 2% silver nitrate ointment will deliver 1 g of the active ingredient?
2% AgNO3 ointment means 2 g AgNO3/100 g ointment. You want 1g AgNO3;
100 g ointment x (1/2) = ?g ointment.
To determine the amount of 2% silver nitrate ointment that will deliver 1g of the active ingredient, we need to consider the percentage of the active ingredient in the ointment.
The term "2% silver nitrate ointment" means that there are 2 grams of silver nitrate per 100 grams of ointment. In other words, for every 100 grams of ointment, 2 grams are silver nitrate.
To calculate the amount of ointment needed to deliver 1g of the active ingredient (silver nitrate), we can set up a proportion:
(2 grams silver nitrate / 100 grams ointment) = (1 gram silver nitrate / x grams ointment)
By cross-multiplying and solving for x, we can find the value of x, which represents the amount of ointment needed:
2 grams silver nitrate * x grams ointment = 100 grams ointment * 1 gram silver nitrate
2x = 100
x = 100 / 2
x = 50
Therefore, 50 grams of the 2% silver nitrate ointment will deliver 1g of the active ingredient (silver nitrate).