Question

pH of the Green solution: 6.54 Title: Wavelength (nm) Yellow Green Blue 453 616 0.378 10.008 0.300 10.207 0.088 1.008 Also show the following calculations in the notebook Results section (required): 1) Calculation of Kc (the equilibrium constant value). Then, on the spreadsheet on the classroom computer, record your Ko data. 2) Calculation of conversion of Kc to pkc. 3) Percent relative error of the pkc value. Information needed is the literature (theoretical) value for the pkc of bromothymol blue is 7.10 at 25 degrees Celsius.

Answer 1

equilibrium constant value and pKc value are given in the following figure according to the given formula.% relative error was also reported.

green Ke= mm yellow Yellow [130] (A616mm - Agionm 453 Careers am Aben) Album blue [Hot] - 10th _ 10-654 0.46 -7 - 10 x 107 - 2.88x107m i K o 288x10 x ( 0.207-0.008) x 0.376 10:300-0.088) X 1.008 = 1:015x107 pkc = -logke = -log(1015x107 = 7-0-0065 = 6.99 7 relative errar experimental-Thearetical Tharetical 7.10- 6.99 rinon - Scanned with 1.69% CamScanner