Question

A sample of white petrolatum contains 10 mg of tocopherol per kg as a preservative. Express the amount of tocopherol as a ratio strength: A. 1:1000 C. 1:100,000 B. 1:10,000 D. 1:1,000,000

Answer 1

The amount of tocopherol in the white petrolatum sample can be expressed as a ratio strength of 1:100.

Step-by-step explanation:

The amount of tocopherol in the white petrolatum sample can be expressed as a ratio strength by comparing the amount of tocopherol to the total weight of the sample. In this case, the sample contains 10 mg of tocopherol per kg of white petrolatum. To express this as a ratio strength, we convert the units to the same base, which is 1 g. So, the ratio can be expressed as 10 mg : 1000 g, which simplifies to 1 : 100.

Therefore, the correct ratio strength for the amount of tocopherol in the white petrolatum sample is 1:100.