Nitrogen, carbon, water and hydrogen make up more than what percentage of the mass of the human body?
http://web2.airmail.net/uthman/elements_of_body.html
I checked at the above site and it shows a 70 kg person having
43 kg oxygen
16 kg carbon
7 kg hydrogen
1.8 kg nitrogen
total C,O, H, N = 67.8 kg and
(67.8/70]*100 =96.9%
You may want to check my figures and my calculation.
To determine the percentage of nitrogen, carbon, water, and hydrogen in the human body, we need to consider the composition of these elements and their abundance in the body.
First, let's look at the percentage composition of these elements in the human body:
1. Nitrogen (N): Nitrogen is an essential component of proteins and nucleic acids. It constitutes around 3% of the average human body.
2. Carbon (C): Carbon is the primary element in organic molecules, such as carbohydrates, lipids, and proteins. It makes up about 18.5% of the human body.
3. Water (H2O): Water is crucial for various physiological processes and constitutes a significant portion of the body's mass. On average, the body consists of approximately 60% water.
4. Hydrogen (H): Hydrogen is present in water and other organic compounds. It accounts for around 10% of the body's mass.
Now, let's calculate the total percentage:
Percentage = (Percentage of Nitrogen + Percentage of Carbon + Percentage of Water + Percentage of Hydrogen)
= (3% + 18.5% + 60% + 10%)
= 91.5%
Therefore, nitrogen, carbon, water, and hydrogen account for approximately 91.5% of the mass of the human body.