Two-parter. Thank you in advance  a) A student working in the laboratory prepared the following reactants: 5 mL of 0.008M Cd2+(aq) 10 mL of 0.008M SCN-(aq) 10 mL of 0.7M HNO3(aq) These reagents were mixed and allowed to stand for 10 minutes. The concentration of Cd(SCN)+ in the resulting equilibrium mixture is found to be 5 x 10−4M. Calculate the initial concentration of Cd2+(aq).   b) Calculate the Keq for the reaction mixture.

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