Scientists did experimental work on determination of equilibrium constants Keq for the decomposition of ammonium chloride: NH,Cl = NH3 + HCL Researchers, decided to manipulate the concentration of ammonium chloride so that: [NH3] x [HCl] = 100 constant Experimental data is given below: Table 1. Experimental data on concentration of ammonium chloride and equilibrium constant. Concentration (M) Keq 0,0097 0,0137 0,0179 0,0081 0,0234 0,006 0,0261 0,0053 0,0288 0,0045 0,0357 0,0035 0,0426 0,003 0,0481 0,0027 0,0536 0,0024 0,0591 0,0022 0,0646 0,0019 0,0687 0,0018 |. Find unit of equilibrium constant (5 points): ii. Determine the relationship between Keq and concentration of ammonium from experimental data (15 points).