The most abundant elements by mass in th...

The most abundant elements by mass in the body of a healty human adult are: oxygen (61.4%), carbon (22.9%), hydrogenn (10.0%) and nitrogen (2.6%). The weight which a 75kg person would gain if all `""^(1)H`-atoms are replaced by `""^(2)H`-atoms is-

7.5kg

10kg

15kg

37.5kg

Text Solution

Verified by Experts

The correct Answer is:

Weight of the person=75kg
weight due to `""^(1)H=75xx(10)/(100)=7.5kg`
if all the `""^(1)H` has been replaced by `""^(2)H` then weight of the person`=2xx7.5=15kg`
weight of the replaced `""^(1)H=7.5kg`
weight gain`=15-7.5=7.5kg`.

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The most abundant elements by mass in the body of a healthy human adult are : Oxygen (61.4 %) , Carbon (22.9 %) , Hydrogen (10.0 %) and Nitrogen (2.6%) . The weight which a 75 kg person would gain if all ""^(1) H atoms are replaced by ""^(2) H atoms is -

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