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If 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 173 lb man?

(Note: Please show the stoichiometric setup.)

Answer :

Final answer:

Firstly, you need to convert the weight from pounds to kilograms, resulting in 78.5 kg. Then, calculating 1.4% of this mass gives approximately 1.1 kg of calcium in a 173 lb man.

Explanation:

The concept here is unit conversion and percentage calculation which both are important in stoichiometry. First, let's convert pounds to kilograms since the question asked for the answer in kg.

We know 1lb is approximately equal to 0.4536 kg. Therefore, a 173 lb man would weight approximately 78.5 kg (173 lb * 0.4536 kg/lb).

Next, since we know that 1.4% of the mass of a human body is calcium, we calculate 1.4% of 78.5 kg. As a decimal, 1.4% is 0.014. Thus, multiplying 78.5 kg by 0.014, we get approximately 1.1 kg of calcium.

Learn more about Mass Conversion and Percentage Calculation here:

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