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19 Nov 2019
FeNCS^2+ absorbs light with a wavelength of 447 nm. What color is the light chat FeNCS^2+ absorbs? What color is a solution of FeNCS^2+? The experiment tells you to record %T or absorbance. If you use a digital spectrometer, you may cagily record either. However, if you have an analog spectrometer (one with a sweeping needle) you must record %T even through there are marketing's for absorbance as well. Why must %T be read on analog spectrometers? Look at equation 47 on page 71 and also consider reading a clock with hands a digital one. What is the absorbance of a solution with a 57.34% T? A = 2-log % T A = 0.2416 A = 2.log (57.34) When 5.00 mL of 0.0200 M Fe (NO_5)_3 is mixed with 5.00 mL of 0.002000 M NaSCN it is found that at equilibrium FeNCS^2+ is produced with a concentration of 7.00 times 10^-4 M. Calculate the equilibrium concentration of all species present and the equilibrium constant K_c for the reaction below. Remember you learned in CHE 170 that if you add two solution together the concentrations become diluted!
FeNCS^2+ absorbs light with a wavelength of 447 nm. What color is the light chat FeNCS^2+ absorbs? What color is a solution of FeNCS^2+? The experiment tells you to record %T or absorbance. If you use a digital spectrometer, you may cagily record either. However, if you have an analog spectrometer (one with a sweeping needle) you must record %T even through there are marketing's for absorbance as well. Why must %T be read on analog spectrometers? Look at equation 47 on page 71 and also consider reading a clock with hands a digital one. What is the absorbance of a solution with a 57.34% T? A = 2-log % T A = 0.2416 A = 2.log (57.34) When 5.00 mL of 0.0200 M Fe (NO_5)_3 is mixed with 5.00 mL of 0.002000 M NaSCN it is found that at equilibrium FeNCS^2+ is produced with a concentration of 7.00 times 10^-4 M. Calculate the equilibrium concentration of all species present and the equilibrium constant K_c for the reaction below. Remember you learned in CHE 170 that if you add two solution together the concentrations become diluted!
Tod ThielLv2
20 May 2019