Question

question. The most abundant elements by mass in the body of a healthy human adult are oxygen 61.4 % carbon 22.9 percent hydrogen 10% nitrogen 2.6% the weight which a 75 kg person would gain if all H1 atoms are replaced by H2 atoms ?

Answer 1

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Given,

Abundance of elements by mass oxygen equal 61.4 percent carbon equal 22.9 percent hydrogen equal 10% and nitrogen equal 2.6%

➡Total weight of the person = 75 kg

Mass due to H1 =
$\frac{75 \times 10}{100} = 7.5$

1H atoms are replaced by H2 atoms so,

Mass due to 2H = (7.5 × 2)kg

•°• Mass gain by the person = 7.5 kg

is the requied answer.

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Answer 2

Answer:

the answer is 7.5 kg hope it helps you