Answer:
The mass in grams of each element in the body of 62 Kg are
Oxygen 40300 g
Carbon 11160 g
Hydrogen 6200 g
Nitrogen 1860 g
Calcium 992 g
Phosphorus 744 g
Other elements 744 g
It is possible to check it adding all the components, the total is 62000 g.
Explanation:
Firstly, we have a total mass of 62 Kg and the composition as a percentage of each component.
Percentage ( %)
Oxygen 65.0
Carbon 18.0
Hydrogen 10.0
Nitrogen 3.0
Calcium 1.6
Phosphorus 1.2
Other elements 1.2
Taking the definition of a percentage as part of hundred total, each percentage can be expressed as a decimal number. We should divide the percentage with 100 of total. For example: Oxygen 65%, it means 65/100 = 0.65. So, Oxygen is 0.65 in decimal numbers. We do the same for each component.
Percentage ( %) Decimal number
Oxygen 65.0 65/100 = 0.65
Carbon 18.0 18/100 = 0.18
Hydrogen 10.0 10/100 = 0.10
Nitrogen 3.0 3/100 = 0.03
Calcium 1.6 1.6/100 = 0.016
Phosphorus 1.2 1.2/100 = 0.012
Other elements 1.2 1.2/100 = 0.012
Finally. We can multiply decimal number of each component taking the total. 1 Kg is equivalent to 1000 g.
So, 62 Kg = 62 * 1000 g = 62000 g
After that we get the mass in grams of each element, by multiplying 62000 g and the decimal number of each component as follows:
Percentage ( %) Decimal number Mass in grams (g)
Oxygen 65.0 65/100 = 0.65 0.65*62000=40300
Carbon 18.0 18/100 = 0.18 0.18*62000= 11160
Hydrogen 10.0 10/100 = 0.10 0.10*62000= 6200
Nitrogen 3.0 3/100 = 0.03 0.03*62000= 1860
Calcium 1.6 1.6/100 = 0.016 0.016*62000= 992
Phosphorus 1.2 1.2/100 = 0.012 0.012*62000=744
Other elements 1.2 1.2/100 = 0.012 0.012*62000=744
Answer:
Natural abundances in mass percent are:
O = 65%
C = 18%
H = 10%
N = 3.0%
Ca = 1.6%
P = 1.2%
Corresponding weights of the elements are:
O = 65/100 * 62000 g = 40.30 * 10^3 g
C = 18/100 * 62000 g = 11.16 * 10^3 g
H = 10/100 * 62000 g = 62.00 * 10^2 g
N = 3.0/100 * 62000 g = 18.60 * 10^2 g
Ca = 1.6/100 * 62000 g = 9.92 * 10^2 g
P = 1.2/100 * 62000 g = 7.44 * 10^2 g
Explanation:
