Describe an electroplating cell with the object as the cathode, the plating metal as the anode and a solution of its ions as the electrolyte, and write the electrode half-equations for depositing a thin layer of a metal such as copper or silver.
Tę umiejętność sprawdza 5 zadań wzorowanych na arkuszach IB z lat 2023–2026.
Which combination of substances is correctly used for electroplating an iron object with tin using an electrolytic cell? A. X: tin, Y: iron, Z: tin(II) sulfate solution B. X: iron, Y: tin, Z: tin(II) sulfate solution C. X: tin, Y: iron, Z: iron(II) sulfate…
In this electrolytic cell, silver ions, Ag+(aq), are deposited as silver onto cutlery made of a cheaper metal. Complete the table below, using ticks to show which direction each species moves in and where that movement occurs.
A steel object is electroplated with nickel, using an aqueous nickel(II) chloride electrolyte. (i) Deduce the half-equation for the reaction occurring at each electrode. Anode: Cathode: (ii) For the reaction between chlorine gas and aqueous potassium iodide…
A steel bolt is to be coated with a thin layer of a metal by electroplating, using an aqueous solution of a salt of the coating metal as the electrolyte. Deduce one metal that could be deposited on the bolt with high efficiency. Use section 19 of the data…
A steel spoon is to be coated with silver by electrolysis. Which arrangement is correct? A. The spoon is the cathode, a silver rod is the anode and the electrolyte is aqueous AgNO3 B. The spoon is the anode, a silver rod is the cathode and the…
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