Question

Dissolved oxygen is an important parameter in assessing water quality because of its influence on the organism living within a body of water The O, concentration in seawater is found to be 5 x 10-4 M at 25°C. What would be the concentration of O, in ppm?​

Answer 1

Answer:

PPM means parts per millions i. e., 10^6

If concentration is 5×10^-4

Then in PPM = 5×10^-4/10^-6 = 500 PPM

hope this will help you