6 × 103 g oxygen is dissolved per kg of sea water. Calculate the ppm of oxygen in sea water.
Ans is 6106 ppm.
1 ppm = 1 mg/kg
Thus, mass of oxygen in 1 kg sea water = 6 103 g
=
=
i.e. 6 106 mg/kg oxygen is dissolved in sea water.
Now, 1 mg/kg = 1 ppm
So, 6 106 mg/kg = 6 106 ppm.
1 ppm = 1 mg/kg
Thus, mass of oxygen in 1 kg sea water = 6 103 g
=
=
i.e. 6 106 mg/kg oxygen is dissolved in sea water.
Now, 1 mg/kg = 1 ppm
So, 6 106 mg/kg = 6 106 ppm.