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Answer :
Final answer:
To find out how much calcium a 185-pound man has, one needs to convert the weight from pounds to kilograms and then multiply by 1.4%. The correct answer is approximately 1.2 kg of calcium.
Explanation:
To answer this problem, we first need to convert the weight of the man from pounds to kilograms. We know that 1 pound is approximately 0.453592 kg, so a 185-pound man weighs approximately 83.91 kilograms.
Now, we are told that 1.4% of the mass of a human body is calcium. To find out how much calcium this man has, we multiply his mass in kilograms by 1.4% (or 0.014 in decimal form).
Thus, 83.91 kg * 0.014 = 1.17474 kg. We can round this to the nearest tenth to get 1.2 kg.
So, the correct answer is d.1.2 kg Ca.
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