Answer :
Final answer:
To calculate the number of grams of table salt that would provide the LD50 for a 157-lb person, you need to convert the person's weight from pounds to kilograms and use the LD50 value in milligrams per kilogram of body weight.
Explanation:
The LD50 value represents the lethal dose required to kill 50% of a population. To calculate the number of grams of table salt that would provide the LD50 for a 157-lb person, we first need to convert the person's weight from pounds to kilograms. There are 2.2 pounds in 1 kilogram, so 157 pounds is equal to 71.36 kilograms.
Next, we use the LD50 value in milligrams per kilogram of body weight to calculate the total amount of table salt needed. The LD50 for table salt is 3300 mg/kg. Multiplying this value by the weight of the person in kilograms gives us:
Total table salt = 3300 mg/kg × 71.36 kg = 235,408 mg
To convert this amount to grams, we divide by 1000:
Total table salt in grams = 235,408 mg / 1000 = 235.408 grams
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