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equilibrium concentration help?

equilibrium concentration help? - Chemistry Forum

equilibrium concentration help? - Chemistry Forum. Discuss chemical reactions, chemistry.


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Old 06-27-2009, 03:21 AM
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Default equilibrium concentration help?



The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.510. If a trial's absorbance is measured to be 0.250 and its initial concentration of SCN– was 0.00050 M, the equilibrium concentration of SCN– will be __________?
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