) In the electrolysis of a 200 mL unknown metal solution, 0.0434 grams of cathode mass increases when a current of 0.50 A is passed through the cell for 5 minutes. Other experiments have determined that the metal has +2 valence. Which of the following is the metal in the electrolysis solution? (Pt: 195 g/mol; Si: 28,08 g/mol; Fe: 55,8 g/mol; Cd: 112,4 g/mol; Mn: 54,94 g/mol; 1 F : 96485 C) A) Pt

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8) In the electrolysis of a 200 mL unknown metal solution, 0.0434 grams of cathode mass increases when a current of 0.50 A is passed through the cell for 5 minutes. Other experiments have determined that the metal has +2 valence. Which of the following is the metal in the electrolysis solution?

(Pt: 195 g/mol; Si: 28,08 g/mol; Fe: 55,8 g/mol; Cd: 112,4 g/mol; Mn: 54,94 g/mol; 1 F : 96485 C)

  • A) Pt
  • B) Si
  • C) Cd
  • D) Fe

 

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