A litre of sea water weighing about 1.05 kg contains 5 mg of dissolved oxygen (O_(2)). Express the concentration of dissolved oxygen in ppm.

A litre of sea water weighing about 1.05 kg contains 5 mg of dissolved

1.	A litre of sea water weighing about 1.05 kg contains 5 mg of dissolved oxygen (O_(2)). Express the concentration of dissolved oxygen in ppm.
Answer» Solution :`("mass of DISSOLVED solid")/("Mass of water") xx 10 ^(6)` ` ( 5XX 10 ^(-3) g)/(1. 05 xx 10 ^(3) g )xx 10 ^(6) = 4.76 PPM`