Answer :
Final Answer:
To calculate the number of grams that would provide the LD50 for a 157-lb person for sodium cyanide with an LD50 of 6 mg/kg:
Explanation:
To calculate the number of grams required to reach the LD50 for a 157-lb person exposed to sodium cyanide with an LD50 of 6 mg/kg, we need to follow these steps:
First, we need to convert the weight of the person from pounds to kilograms. There are approximately 2.205 pounds in a kilogram. So, 157 lbs / 2.205 = 71.15 kg. This is the person's weight in kilograms.
Next, we multiply the person's weight in kilograms by the LD50 in mg/kg to find the total amount of sodium cyanide needed to reach the LD50. In this case, it would be 71.15 kg x 6 mg/kg = 426.9 mg.
Now, we need to convert milligrams (mg) to grams (g) since 1 gram is equal to 1000 milligrams. So, 426.9 mg / 1000 = 0.4269 grams.
Therefore, it would take approximately 0.4269 grams of sodium cyanide to reach the LD50 for a 157-lb person.
In summary, to calculate the number of grams required to reach the LD50 for a 157-lb person for sodium cyanide with an LD50 of 6 mg/kg, you would need approximately 0.4269 grams. This calculation is based on the person's weight in kilograms and the LD50 of sodium cyanide. It's important to note that sodium cyanide is extremely toxic and should never be used or handled without proper training and safety precautions.
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