How many 1-pound jars of petroleum jelly should be ordered to prepare 600 g of 1% ointment?
A) 1
B) 2
C) 3
D) 4

Question

Quizplus · Accepted Answer

To prepare a 1% ointment, the total weight of the ointment is considered. Here, 600 g of ointment contains 1% of the active ingredient, meaning the rest (99%) is the petroleum jelly. Since 1 pound is approximately 454 grams, and the total weight of the ointment is 600 grams, slightly more than 1 pound but less than 2 pounds of petroleum jelly is needed. Therefore, 2 jars are required to ensure there is enough petroleum jelly to prepare the ointment.

How Many 1-Pound Jars of Petroleum Jelly Should Be Ordered