68 Chromium plating can involve the electrolysis of an

Last updated: 7/3/2023

68 Chromium plating can involve the electrolysis of an electrolyte of an acidified mixture of chromic acid and chromium sulphate If during electrolysis the article being plated increases in mass by 2 6 g and 0 6 dm of oxygen are evolved at an inert anode the oxidation state of chromium ions being discharged must be assuming Cr 52 and 1 mole of gas at room temperature and pressure occupies a volume of 24 dm a 1 c 1 b zero d 2