where 3, You are trying to find the equilibrium constant for the reaction A*(aq)+ B(aq) AB(aq) the compound AB has a strong absorbance at 520 nm, and the ions do not absorb light at thát wavelength. The following data for concentration versus absorbance was collected in a calibration run: [AB] (x 104 M) AB (absorbance) 1.00 0.084 2.00 0.167 3.00 0.251 4.00 0.337 5.00 0.421 In an actual experiment, [A*]= 0.0160 M and [B]=0.0100 M . The equilibrium transmittance of the solution was 51.0%. Since the relation between %T (percent transmittance) and A (absorbance) is A=2- log(%T), the absorbance of the solution at equilibrium is about 0.292 Can one use the data to find the equilibrium constant K for the reaction? Give a general description of how, if possible, or why not, if not possible.

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18, You are trying to find the equilibrium constant for the reaction At(aq) + B (aq) AB(aq) where
the compound AB has a strong absorbance at 520 nm, and the ions do not absorb light at that
wavelength. The following data for concentration versus absorbance was collected in a calibration
run:
[AB] (x 104 M)
AB
(absorbance)
1.00
0.084
2.00
0.167
3.00
0.251
4.00
0.337
5.00
0.421
In an actual experiment, [A'l = 0.0160 M and [Bl = 0.0100 M. The equilibrium transmittance
of the solution was 51.0%. Since the relation between %T (percent transmittance) and A (absorbance)
is A=2- log(%T), the absorbance of the solution at equilibrium is about 0.292
Can one use the data to find the equilibrium constant Ke for the reaction? Give a general
description of how, if possible, or why not, if not possible.
Transcribed Image Text:18, You are trying to find the equilibrium constant for the reaction At(aq) + B (aq) AB(aq) where the compound AB has a strong absorbance at 520 nm, and the ions do not absorb light at that wavelength. The following data for concentration versus absorbance was collected in a calibration run: [AB] (x 104 M) AB (absorbance) 1.00 0.084 2.00 0.167 3.00 0.251 4.00 0.337 5.00 0.421 In an actual experiment, [A'l = 0.0160 M and [Bl = 0.0100 M. The equilibrium transmittance of the solution was 51.0%. Since the relation between %T (percent transmittance) and A (absorbance) is A=2- log(%T), the absorbance of the solution at equilibrium is about 0.292 Can one use the data to find the equilibrium constant Ke for the reaction? Give a general description of how, if possible, or why not, if not possible.
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