1. The problem statement, all variables and given/known data I am doing an experiment to find the difference in photosynthesis between different areas of grass. I have and am taking more measurements. But essentially I need to convert the data I have into a flux per area over time. the data logger records the data of CO2 concentration in (μmolCO2 (mol air)-1). I had it set to do so every second and recorded data fro 4-5 minutes. I have the slope of the trendline, but I am unsure what that slope is. Is the slope (μmolCO2 (mol air)-1) per second since its rise/run? 2. Relevant equations equations of the data I have closed chamber: y = 2.3778x + 588.26 clear chamber: y = -0.3184x + 399.19 3. The attempt at a solution basically I want to find how much co2 was used. so if I have X amount of co2 being emitted from the ground that is my background noise. I did that with a closed chamber so no light got in and therefor no photosynthesis occurred. Then measured the same grass with a clear chamber and got a decrease. This decrease should be more since there was still background noise. So the grass was using at least as much co2 as was emitted from the ground plus some more. I cant actually do the calculations since I am missing an important piece of data in the volume of the chambers. which were different sizes as well. I want my flux in (mgC)(m^-2 of ground hr^–1) Can anyone give me a basic walkthrough of how to do this?