Question

How many mg are there in a 5.00 grain aspirin tablet? I grain = 0.00229 oz. There are 454 g/lb.
There are 16.0 oz/lb.

Answer 1

Answer: 325 mg

Explanation:

Grains ---> ounces -----> pounds -----> grams -----> mg

5 gr x (0.00229 oz / 1 gr) x (1 lb / 16 oz) x (454 g / 1 lb) x (1000 mg / 1 g) = 325 mg