Hey everyone
So I'm doing a chemistry project where I measure the levels of dissolved oxygen in varying temperatures of water through the Winkler Method, but I came across a bit of an issue. If I were to heat up water, say to 35 degrees celsius, then through my prior research the amount of dissolved oxygen present in the water should decrease. My teacher recommended I perform the titration with all the water at the same temperature, however, and he said said it might be best if I were to cover the top of the beaker containing the hot water, so as not to let any oxygen get in, and then rapidly chill the water in an ice bath. We both weren't sure if this would maintain the amount of dissolved oxygen as present in the hot water, so I thought I might ask this forum. Does anyone have any ideas on whether the water would have different amounts of dissolved oxygen despite being the same temperature?
Thanks a lot!!