Answer :
Final answer:
The lethal dose of potassium cyanide taken orally by a 165-lb person is approximately 119.57 mg.
Explanation:
The lethal dose of potassium cyanide (KCN) taken orally is 1.6 mg/kg of body weight. To calculate the lethal dose of potassium cyanide taken orally by a 165-lb person, we need to convert the weight from pounds to kilograms. One pound is approximately 0.454 kilograms, so the person weighs 74.73 kilograms (165/0.454). Therefore, the lethal dose for this person would be 119.57 mg (1.6 x 74.73).
