Electrolysis of an aqueous solution of an unknown metal nitrate, M(NO₃)ₙ
CHEMISTRY · Subjective · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry
Problem
Electrolysis of an aqueous solution of an unknown metal nitrate, M(NO₃)ₙ, is carried out with a constant current of 1.20 A for 1 600 s. During the run, 24.5 mL of H₂(g) is collected at 25 °C and 1.00 atm at the cathode along with 0.571 g of solid metal M. Assuming that only hydrogen gas evolution and metal deposition occur at the cathode, determine the charge (magnitude only) on the metal cation Mⁿ⁺.