Answer to Question #249415 in General Chemistry for Mr. Lee

Question

A metallurgist wants to chromium plate his car’s hood ornament. The ornament has a

surface area of 13.64 in2. He wants the chromium plating to be 0.0040 in thick.

(a) How many grams of chromium (d 5 7.19 g/cm3) are required?

(b) If a current of 9.00 amperes is used, how long will it take to plate the ornament using

a solution of CrCl3 as a chromium source? (Assume 100% efciency.)

Answer 1

The answer to your question is provided in the image: