Awater sample contains the pollutant chlorobenzene with a concentration of 15 ppb. what is the molarity of this solution

We know that

therefore

the molar mass of chlorobenzene is 112.56

therefore moles of chlorobenzne in 15ppb will be:

Molarity is number of moles of solute dissolved in one litre of solution

The molarity will be thus

the atomic mass is the bottom number on the element.

-steel jelly

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.