so i'm trying to finish my lab and im trying to solve for the concentration, and the lab handout says "remember all the cl- from the original sample ended up in 100 mL of solution"

The concentration i solved for (from my graph) was 9.8 ppm Cl....how would i use a dilution factor to account for that statement???

I don't want to appear dumb but how am I supposed to know what you did?

yeah sorry lol we made standards of solutions that were all diluted equally of 100 ppm, 10 ppm and 1 ppm solutions of Cl- and so we graphed that to get the cl- in a sample, which was the 9.8 ppm but that was in a diluted sample i guess? maybe it would be 50/100 dilution factor

To account for the statement and adjust the concentration using a dilution factor, you need to understand the relationship between the original sample and the final solution. The dilution factor is the ratio of the final volume to the initial volume. In this case, since the original sample ended up in a 100 mL solution, it means that the final volume is 100 mL, and the initial volume is the volume of the original sample.

To adjust the concentration, you can simply divide the concentration calculated from your graph by the dilution factor.

Since the dilution factor is not explicitly given in your question, you will need to calculate it using the volumes involved in the dilution process. If you know the volumes involved, you can use the formula:

Dilution Factor = Final Volume / Initial Volume

Here's an example of how you can calculate the concentration after the dilution:

Let's assume the initial volume of the original sample is 10 mL. Therefore, the dilution factor would be:
Dilution Factor = 100 mL (final volume) / 10 mL (initial volume) = 10

To adjust the concentration of 9.8 ppm using the dilution factor, you would divide it by 10:
Adjusted Concentration = 9.8 ppm / 10 = 0.98 ppm

So, the adjusted concentration after accounting for the dilution factor would be 0.98 ppm Cl.

It's crucial to note that the dilution factor may vary based on the specific volumes used in your experiment. Ensure that you accurately determine the volumes involved in the dilution process to calculate the correct dilution factor.