you are concerned about preventing your steel boat trailer from rustin
You are concerned about preventing your steel boat trailer from rusting, so you had it“galvanized" with a 100 um coating of zinc. As this zinc preferentially corrodes from Znº to, your steel has cathodic protection. The boat shop has measured a very small corrosion current of .04 amperes as this sacrificial zinc layer corrodes. From this corrosion current, find the life of the zinc coating. Your trailer has an area of 3 m? , the zinc has a density of 7100 kg/m3, and the zinc has a molar mass of 65.38 kg/kmol. Find the corrosion life of the zinc coating – in years.Zn²+
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