Answer: The mass of methane found in the person is 0.26 g
Explanation:
ppm is the amount of solute (in milligrams) present in kilogram of a solvent. It is also known as parts-per million.
To calculate the ppm of oxygen in sea water, we use the equation:
[tex]\text{ppm}=\frac{\text{Mass of solute}}{\text{Mass of solution}}\times 10^6[/tex]
Both the masses are in grams.
We are given:
Concentration of methane = 4 ppm
Mass of person = 65 kg = 65000 g (Conversion factor: 1 kg = 1000 g)
Putting values in above equation, we get:
[tex]4=\frac{\text{Mass of methane}}{65000g}\times 10^6\\\\\text{Mass of methane}=\frac{4\times 65000}{10^6}=0.26g[/tex]
Hence, the mass of methane found in the person is 0.26 g
