The quenching of tryptophan fluorescence by dissolved o2 gas was monitored by measuring emission lifetimes at 348 nm in aqueous solution. (a) determine the quenching rate constant (ko) from the following data by substituting (τ/t) in place of (θ.0/9) in the stern-volmer equation and then dividing both sides by to. use excel or another plotting tool to fit the data to the resulting form of the stern-volmer equation and show your plot in the space below, with both the linear fit and the r2 value shown on the plot. (hint: watch your units when interpreting you plotline fit! ) [02]/mol/l t /109 s 0.000 0.023 0.055 0.080 0.108 2.60 50 0.92 0.7 0.57