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A student prepares an equilibrium solution by mixing 5.00ml 0.00200 m Fe3+ 2.00

ID: 523834 • Letter: A

Question

A student prepares an equilibrium solution by mixing 5.00ml 0.00200 m Fe3+ 2.00 ml 0.00200 mSCN- and 3.00 ml 0.1m HNO3 what are the initial concentrations of Fe3+ and SCN- in this solution A student prepares an equilibrium solution by mixing 5.00ml 0.00200 m Fe3+ 2.00 ml 0.00200 mSCN- and 3.00 ml 0.1m HNO3 what are the initial concentrations of Fe3+ and SCN- in this solution A student prepares an equilibrium solution by mixing 5.00ml 0.00200 m Fe3+ 2.00 ml 0.00200 mSCN- and 3.00 ml 0.1m HNO3 what are the initial concentrations of Fe3+ and SCN- in this solution

Explanation / Answer

From the given data,

Initial concentration [Fe3+] = 0.002 M x 5 ml/10 ml

                                           = 0.001 M

Initial concentration [SCN-] = 0.002 M x 2 ml/10 ml

                                            = 0.0004 M