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horrorfan [7]
3 years ago
5

A certain substance makes up 4.8 × 10–4 percent by mass of a normal healthy human being. How many grams of that substance would

be found in the body of a person weighing 120 lb? (1.0 kg = 2.2 lb).
Chemistry
1 answer:
iris [78.8K]3 years ago
4 0

Answer:

0.2615 g

Explanation:

Given that mass of the body = 120 lb

The conversion of lb to g is shown below as:-

1 lb = 454 g

So, 120 lb = 120*454 g = 54480 g

The substance is 4.8\times 10^{-4}\ \% of the human body

So, Mass of that substance in the body of mass 54480 g is:-

m=\frac{4.8\times 10^{-4}}{100}\times 54480\ g=0.2615\ g

<u>0.2615 g of that substance would be found in the body of a person weighing 120 lb.</u>

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