# LD50 is the exposure at which half of a population will die. Look at the LD50 for theNaCl oral dose for rats and express it as a percent. Use this percent to find out howmany pounds of salt would kill half the population of giant rats weighing 165 pounds(the weight of an average person).UD50 TeCratV101/4

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Step 1

The exposure to LD50 leads to the death of half of the population. The LD50 oral dose required to kill the 50 % population of rats is 3.0 g/kg for sodium chloride which means 3.0 g of sodium chloride is required to kill the half of the population of rats weighing 1 kg.

This value can be converted into pounds as follows:

Step 2

Multiply the weight of population with the LD50 dose of salt to calculate ...

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