If a Constant Current of 4

question 55

Multiple Choice

If a constant current of 4.9 amperes is passed through a cell containing Cr³⁺ for 2.3 hour, how many grams of Cr will plate out onto the cathode? (The atomic mass of Cr is 51.996 g/mol.)

• A) 0.12 g
• B) 1.1 g
• C) 66 g
• D) 22 g
• E) 7.3 g

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