NO

NO is the correct answer. The points for low concentrations are scrunched together, and there is a wide region of the graph with no points. The line that was drawn may be quite incorrect.

We really don't know yet what range of concentration must be covered when we experiment with adsorption on carbon. If our samples come out in the range of roughly 0.1 to 1 g/L, these scales will be o.k., but we need more points to define the graph better.

If the runs with carbon have samples in the range of 0.01 to 0.1 g/L, we need a new graph and enough points to define the line. It would look like this with only 3 points:

There are no stub lines on the ordinate for "Scale Reading" because the colorimeter should be readjusted to suit the known solution of highest concentration. 

Go "with the flow"

Home page for adsorption

Done

 Last update 10-Jan-95