The kinetic data shown below were observed for the reaction:    BF3 (g)     +   NH3 (g)    --------->      F3B·NH3 (g)   Trial # [BF3] (mol/L) [NH3] (mol/L) Rate (M/s) 1 0.250 0.250 0.2130 2 0.250 0.125 0.1065 3 0.200 0.100 0.0682 4 0.350 0.100 0.1193 5 0.175 0.100 0.0596 What is the rate constant for this experiment?

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