What mass of 2-naphthol would have to be ingested by each rat in a sample set of rats in order to kill half the population of rats? Assume each rat weighs 230 g. Show your calculations for full credit.

303.6 mg

Explanation:

Given that:

The lethal dose = 1320 mg/kg

The weight of the rat = 230 g

The lethal dose is the dose of a substance likely to cause death. SO a lethal dose of 50 will cause the death of 50% of the sample of test animals.

Therefore;

The mass of 2-naphthol that would have been ingested by each rat in a sample set of rats in order to kill half the population of rats will be equal to:

= 303.6 mg

i think it's c. i'm not sure but i think so.