Answer: The mass of iron found in the solution is 0.56 mg
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 iron = 2 ppm
Mass of solution = 280 g
Putting values in above equation, we get:
[tex]2=\frac{\text{Mass of iron}}{280g}\times 10^6\\\\\text{Mass of iron}=\frac{2\times 280}{10^6}=0.00056g=0.56mg[/tex]
Conversion factor used: 1 g = 1000 mg
Hence, the mass of iron found in the solution is 0.56 mg
